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Experimental Investigation of Phase Equilibria in the Ti-Cr-V System at 1000–1200 °C Metals (IF 2.9) Pub Date : 2024-04-25 Shiyu Fu, Jingjing Wang, Xiao-Gang Lu
Ti-Cr-V-based alloys have been utilized across various domains, including aerospace structural and functional materials and hydrogen storage materials. Investigating the phase relations in the Ti-Cr-V system is significant in supporting the material design for these applications. In the present work, the isothermal sections at 1000, 1100, and 1200 °C for the Ti-Cr-V system were precisely determined
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Study of Tuyere Combustion Flame Temperature in Vanadium and Titanium Blast Furnaces by Machine Vision and Colorimetric Thermometry Metals (IF 2.9) Pub Date : 2024-04-25 Haoyu Cai, Ziming Zhu, Dongdong Zhou
The steel industry is an important foundation of the national economy and the livelihood of the people, producing a large amount of carbon dioxide gas, accounting for about 70% of the carbon dioxide gas generated in the steel industry, which occurs during the ironmaking process. Therefore, the key technology to reduce the pollution and improve competitiveness is to increase the stability of blast furnace
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Laser Powder Bed Fusion Processing of Low Cost CoCrFeNiMoxNby High Entropy Alloys with Promising High-Temperature Properties via In Situ Alloying Commercial Powders Metals (IF 2.9) Pub Date : 2024-04-25 S. Venkatesh Kumaran, José Manuel Torralba
A blend of only commercial powders, including Ni625, CoCrF75, and 316L, were used as the raw material for fabricating non-equiatomic CoCrFeNiMoxNby high entropy alloys (HEAs) through laser powder bed fusion (PBF-LB/M) via in situ alloying, instead of using pure elemental powders, thus reducing the raw materials cost. The rapid cooling inherent in the PBF-LB/M process facilitated the dissolution of
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Impact Toughness Dependent on Annealing Temperatures in 0.16C-6.5Mn Forged Steel for Flywheel Rotors Metals (IF 2.9) Pub Date : 2024-04-25 Tinghui Man, Jun Wang, Hongshan Zhao, Han Dong
For the application of forged medium-Mn steels on flywheel rotors, the effect of annealing temperatures from 300 °C to 650 °C on the impact toughness of 0.16C-6.5Mn forged steel was investigated to demonstrate the microstructural characteristics and austenite reverse transformation determining the impact toughness. The results obtained through standard Charpy V-notch impact tests at ambient temperature
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A Study of {10-12} Twinning Activity Associated with Stress State in Mg-3Al-1Zn Alloy during Compression Metals (IF 2.9) Pub Date : 2024-04-25 Boqin Lu, Wei Wang, Jinyi Yao, Liping Deng, Lei Xiao, Bingshu Wang
An eight-sided prism sample, obtained from a hot-rolled AZ31 magnesium alloy sheet, was compressed at room temperature along the transverse direction to investigate the influence of local strain on twinning behavior using electron backscatter diffraction (EBSD) measurements, hardness distribution, and metallographic observations. The octagonal surface of the sample was divided into distinct regions
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Effect of Deep Cryogenic Aging Treatment on Microstructure and Mechanical Properties of Selective Laser-Melted AlSi10Mg Alloy Metals (IF 2.9) Pub Date : 2024-04-24 Pengjun Tang, Taiqi Yan, Yu Wu, Haibo Tang
Deep cryogenic aging (DCA) is a newly developed heat treatment technique for additive-manufactured metallic materials to reduce residual stress and improve their mechanical properties. In this study, AlSi10Mg alloy samples fabricated by selective laser melting were deep-cryogenic-treated at −160 °C and subsequently aged at 160 °C. Phase and microstructural analyses were conducted using X-ray diffraction
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Stress Relaxation Cracking in 347H Stainless Steel Arc Welds: Susceptibility Evaluation of Heat-Affected Zone Metals (IF 2.9) Pub Date : 2024-04-24 Timothy Pickle, Yu Hong, Chad Augustine, Judith Vidal, Zhenzhen Yu
Stress relaxation cracking (SRC) is considered one of the major failure mechanisms for 347H stainless steel welds at elevated service temperatures or during post weld heat treatment (PWHT), especially within the heat-affected zone (HAZ). This work focuses on the characterization of SRC susceptibility within 347H physically simulated arc welded HAZ at elevated temperatures. A four-step SRC thermomechanical
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Synergistic Effect of Al and Ni on Microstructure Evolutions and Mechanical Properties of Fe-Mn-Al-C Low-Density Steels Metals (IF 2.9) Pub Date : 2024-04-24 Xiaodong Lv, Xuejiao Wang, Aidong Lan, Junwei Qiao
In this study, the synergistic behavior of Ni and Al in two low-density steels (Fe-26Mn-10.2Al-0.98C-0.15V (wt. %) and Fe-29Mn-5Al-1C-12Ni (wt. %)) and their influence on microstructures and mechanical properties were investigated. The chemical composition of κ-carbides and B2 precipitated particles as a function of annealing and aging temperature and the matrix within which they formed were elucidated
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Self-Heating and Fatigue Assessment of Laser Powder Bed Fusion NiTi Alloy with High Cycle Fatigue Mechanisms Identification Metals (IF 2.9) Pub Date : 2024-04-24 Timothee Cullaz, Luc Saint-Sulpice, Mohammad Elahinia, Shabnam Arbab Chirani
Rapid methods for assessing the fatigue properties of materials have been developed, among which the self-heating method stands out as particularly promising. This approach analyzes the thermal signal of the specimen when subjected to cyclic loading. In this research, the self-heating method was utilized for the first time with laser powder bed fusion (LPBF) of NiTi alloys, examining two specific loading
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Microstructure and Physico-Mechanical Properties of Biocompatible Titanium Alloy Ti-39Nb-7Zr after Rotary Forging Metals (IF 2.9) Pub Date : 2024-04-24 Anatoly Illarionov, Galymzhan Mukanov, Stepan Stepanov, Viktor Kuznetsov, Roman Karelin, Vladimir Andreev, Vladimir Yusupov, Andrei Korelin
The evolution of microstructure, phase composition and physico-mechanical properties of the biocompatible Ti-39Nb-7Zr alloy (wt.%) after severe plastic deformation by rotary forging (RF) was studied using various methods including light optical microscopy, scanning and transmission electron microscopies, X-ray diffraction, microindentation, tensile testing and investigation of thermophysical properties
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Effects of Alloying Element on Hydrogen Adsorption and Diffusion on α-Fe(110) Surfaces: First Principles Study Metals (IF 2.9) Pub Date : 2024-04-23 Luying Zhang, Qingzhe Zhang, Peng Jiang, Ying Liu, Chen Zhao, Yuhang Dong
Based on first principles density functional theory (DFT) methods, this study employed the Cambridge Serial Total Energy Package (CASTEP) module within Materials Studio (MS) software under the generalized gradient approximation to investigate the adsorption, diffusion behavior, and electronic properties of hydrogen atoms on α-Fe(110) and α-Fe(110)-Me (Mn, Cr, Ni, Mo) surfaces, including calculations
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Corrosion Behavior of 30 ppi TAD3D/5A05Al Composite in Neutral Salt Spray Corrosion Metals (IF 2.9) Pub Date : 2024-04-23 Zishen Li, Hongliang Yang, Yuxin Chen, Gaofeng Fu, Lan Jiang
This study created ceramic preforms with a 3D network structure (TAD3D) by using treated aluminum dross (TAD) and kaolin slurry, with 30 ppi polyurethane foam as a template via the sacrificial template method. TAD3D/5A05Al composites were then produced via pressureless infiltration of 5A05Al aluminum alloy into TAD3D. The corrosion behavior and resistance of TAD3D/5A05Al in salt spray were assessed
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Study on Corrosion Fatigue Behavior of 304L Austenite Stainless Steel in 325 °C High-Temperature Water Environment Metals (IF 2.9) Pub Date : 2024-04-23 Huanchun Wu, Xiangbing Liu, Chaoliang Xu, Yuanfei Li, Jian Yin, Xiao Jin, Wenqing Jia, Wangjie Qian, Peng Wang, Yanwei Zhang
The fatigue crack growth behavior of 304L austenitic stainless steel (SS) in a 325 °C high-temperature and high-pressure water environment were investigated by a corrosion fatigue test system, by electron back scatter diffraction (EBSD), and by a transmission electron microscope (TEM). The experimental results indicated that the crack growth rate (CGR) of 304L SS increases with increasing the stress
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Removal of Antimony from Industrial Crude Arsenic by Vacuum Sublimation: Combination of Thermodynamics and Ab Initio Molecular Dynamics Metals (IF 2.9) Pub Date : 2024-04-23 Zibin Zuo, Mengping Duan, Xinyang Liu, Xiumin Chen, Huan Luo, Tengteng Shi, Xianjun Lei, Yang Tian, Bin Yang, Baoqiang Xu
Thermodynamic theory was employed in this study to investigate the feasibility of separating antimony (Sb) from crude arsenic (As) using vacuum sublimation. Ab initio molecular dynamics simulations are used to calculate the structure, stability, and diffusion properties of AsmSbn (m + n ≤ 6) clusters. As4, As3Sb, As2Sb2, and AsSb3 are the possible clusters in this thermodynamic calculation, and the
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Quasi In Situ Study on the Slipping Behavior and Residual Stress of Copper Strip Metals (IF 2.9) Pub Date : 2024-04-23 Yahui Liu, Qianqian Zhu, Yanjun Zhou, Kexing Song, Xiaokang Yang, Jing Chen
The preparation method of integrated circuit lead frames has transitioned from stamping to etching, rendering them more sensitive to residual stress. Consequently, the dimensional deviations caused by residual stress become more pronounced, necessitating a thorough investigation into the copper strip processing process, particularly considering the high-precision requirements of the lead frame. A quasi
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Experimental Study of Performance of Ti-6Al-4V Femoral Implants Using Selective Laser Melting (SLM) Methodology Metals (IF 2.9) Pub Date : 2024-04-23 Wenjie Zhang, Hongxi Liu, Zhiqiang Liu, Yuyao Liang, Yi Hao
Selective laser melting (SLM) technology used for the design and production of porous implants can successfully address the issues of stress shielding and aseptic loosening associated with the use of solid implants in the human body. In this paper, orthogonal experiments were used to optimize the process parameters for SLM molding of Ti-6Al-4V (TC4) material to investigate the effects of the process
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Investigation on the Duration of Action of Mg3N2 as a Grain Refiner for AZ80 Alloy Metals (IF 2.9) Pub Date : 2024-04-22 Thomas Hösele, Ernst Neunteufl, Jiehua Li
In magnesium alloys with aluminum as an alloying component, zirconium loses its grain refinement effect as a grain refiner. Instead of zirconium, Mg3N2 can be used, and promising results have already been obtained. However, the duration of action of Mg3N2 has not been elucidated yet. The aim of this work is therefore to determine the grain size of the AZ80 alloy as a function of the duration of action
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Semi-Analytical Solution Model for Bending Deformation of T-Shaped Aviation Aluminium Alloy Components under Residual Stress Metals (IF 2.9) Pub Date : 2024-04-22 Ning Li, Shouhua Yi, Wanyi Tian, Qun Wang
Structures composed of aviation aluminium alloys, characterized by their limited rigidity and thin-walled configurations, frequently exhibit deformation after processing. This paper presents an investigation into T-shaped components fabricated from pre-stretched 7075-T7451 aviation aluminium alloy sheets, examining the effects of residual stress and the geometrical parameters of T-shaped components
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Evaluation of Melting Efficiency in Cold Wire Gas Metal Arc Welding Using 1020 Steel as Substrate Metals (IF 2.9) Pub Date : 2024-04-21 R. A. Ribeiro, P. D. C. Assunção, A. P. Gerlich
A key welding parameter to quantify in the welding process is the ratio of the heat required to melt the weld metal versus the total energy delivered to the weld, and this is referred to as the melting efficiency. It is generally expected that the productivity of the welding process is linked to this melting efficiency, with more productive processes typically having higher melting efficiency. A comparison
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Recent Status of Production, Administration Policies, and Low-Carbon Technology Development of China’s Steel Industry Metals (IF 2.9) Pub Date : 2024-04-20 Yufeng Qiao, Guang Wang
In 2023, China’s crude steel production amount reached 1.019 billion tons, and the energy consumption of China’s steel industry amount reached 561 million tons of coal. China’s steel industry, with its dominant reliance on coal for energy and the primary use of blast furnaces and converters in production processes, as well as its massive output, has become the main field for achieving China’s “carbon
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Study on the Optimization of Investment Casting Process of Exhaust Elbow for High-Power Engine Metals (IF 2.9) Pub Date : 2024-04-20 Shiyu Xie, Zhaozhao Lv, Shengquan Dong
The high-power engine exhaust elbow has a complex construction, which makes it susceptible to casting flaws that could negatively impact its functionality. Therefore, the investment casting scheme was established and optimized in this study in order to cast structurally complete exhaust elbows for high-horsepower engines. ProCAST software was used to simulate and optimize the casting and solidification
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TiAl Alloy Fabricated Using Election Beam Selective Melting: Process, Microstructure, and Tensile Performance Metals (IF 2.9) Pub Date : 2024-04-20 Yu Zhang, Yan Li, Meihui Song, Yanchun Li, Shulin Gong, Bin Zhang
TiAl alloy is one of the most attractive candidates for a new generation of high-temperature structural materials and has broad application prospects in the aerospace field. As a typical intermetallic material, TiAl is inevitably difficult to process using conventional methods. Election beam selective melting (EBSM) is an effective method of addictive manufacturing to prepare TiAl alloy with a complex
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A Novel Design of a Molten Salt Bath Structure and Its Quenching Effect on Wire Transformation from Austenite to Sorbite Metals (IF 2.9) Pub Date : 2024-04-20 Jun Li, Bo Wang, Jieyu Zhang
The technology for obtaining sorbite by isothermal quenching of high-temperature molten salt has been used by more and more factories to produce wires with high tensile strength. In this paper, the controlling cap and bottom pipeline of the original salt bath are redesigned. The mathematical model previously proposed is used to simulate the redesigned salt bath model, and the flow field is analyzed
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Numerical Simulation of Temperature Evolution, Solid Phase Transformation, and Residual Stress Distribution during Multi-Pass Welding Process of EH36 Marine Steel Metals (IF 2.9) Pub Date : 2024-04-19 Pengyu Wen, Jiaji Wang, Zhenbo Jiao, Kuijun Fu, Lili Li, Jing Guo
An investigation into the evolution of temperature and stress fields, as well as the phase transformation in marine steel EH36 during multi-pass welding, and their subsequent effects on Charpy impact toughness, remains in great lack. In this study, submerged arc welding (SAW) was employed to carry out multi-pass welding on EH36 steel plates, followed by the low-temperature toughness test of weldments
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Influence of Microstructure on the Mechanical Properties and Polishing Performance of Large Prehardened Plastic Mold Steel Blocks Metals (IF 2.9) Pub Date : 2024-04-19 Hongxiao Chi, Jihao Liu, Jian Zhou, Dangshen Ma, Jinbo Gu
The microstructures throughout a 696 × 1360 mm cross-section of an ISO 1.2738 prehardened steel block for a plastic mold were characterized via optical and electron microscopy and electron backscatter diffraction. The hardness, strength, and polishing performance of the steel block were also tested. The results showed that the microstructure of the steel bloom from the edge to the core consisted of
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A 3D Non-Linear FE Model and Optimization of Cavity Die Sheet Hydroforming Process Metals (IF 2.9) Pub Date : 2024-04-19 Arun Achuthankutty, Ajith Ramesh, Ratna Kishore Velamati
Cryo-rolled aluminum alloys have a much higher strength-to-weight ratio than cold-rolled alloys, which makes them invaluable in the aerospace and automotive industries. However, this strength gain is frequently accompanied by a formability loss. When uniformly applied to the blank surface, hydroforming provides a solution by generating geometries with constant thickness, making it possible to produce
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Characteristics of Oxide Films on Zr702 and Their Corrosion Performance in Boiling Fluorinated Nitric Acid Metals (IF 2.9) Pub Date : 2024-04-19 Hangbiao Su, Yaning Li, Yongqing Zhao, Weidong Zeng, Jianping Xu
Fluoride ions, which interfere with the oxide formation on zirconium have been over-looked until recently. The effect of fluoride ions on oxide formation and dissolution behaviors in zirconium was investigated in this study. A detailed quantitative characterization of the oxide films formed on Zr702 immersed in a fluorinated nitric acid solution was performed using X-ray photoelectron spectroscopy
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Corrosion Behavior of FeCrMnxAlCu High-Entropy Alloys in NaOH Solutions Metals (IF 2.9) Pub Date : 2024-04-17 Yang Yang, Junpeng Cui, Zhipeng Wang, Li Feng
FeCrMnxAlCu (x = 2.0, 1.5, 1.0, 0.5, and 0.0) high-entropy alloys (HEAs) were prepared using vacuum arc melting. The phase structure, microstructure, and element distribution of FeCrMnxAlCu (x = 2.0, 1.5, 1.0, 0.5, and 0.0) HEAs were analyzed using X-ray diffraction, scanning electron microscopy, and energy-dispersive spectroscopy. The corrosion resistance of the alloy in a NaOH solution was evaluated
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The Structure and Magnetic Properties of Sm2Fe17Cx Compounds Prepared from Ball-Milled Mixtures of Sm2Fe17 and Carbon Nanotubes or Graphite Metals (IF 2.9) Pub Date : 2024-04-18 Vladislav A. Mikheev, Igor G. Bordyuzhin, Mikhail V. Gorshenkov, Elena S. Savchenko, Irina V. Dorofievich, Igor V. Shchetinin
The processing route of Sm2Fe17 carbides is shorter than that of nitrides, which can potentially be used for cost-effective mid-performance magnets’ production. The magnetic properties of Sm2Fe17Cx compounds can be controlled at the annealing step, which allows them to be used for a variety of applications. In this work, X-ray diffraction (XRD) analysis, Mössbauer spectroscopy, scanning and transmission
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Microstructure and Properties in Metals and Alloys (Volume 2) Metals (IF 2.9) Pub Date : 2024-04-18 Andrea Di Schino, Claudio Testani
Microstructure design is key in targeting the desired material’s properties [...]
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Comprehensive Unveiling of the Oxidation Resistance and Corrosion Protection of an Oxide Layer Formed on the Gd-Alloyed AZ80 Alloy Surface Metals (IF 2.9) Pub Date : 2024-04-18 Chunlong Cheng, Gaolin Zhou, Bo Qu, Liang Wang, Abdul Malik, Zheng Chen
In our previous work, the effect of Gd alloying on the oxidation resistance of AZ80 alloy was revealed briefly. However, a comprehensive understanding of the oxidation and corrosion resistance of the oxide layer formed on the Gd alloying AZ80 alloy surface needs to be developed. Thus, in this research, the high-temperature oxidation behaviors, oxidation products, and oxide layer characteristics of
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Long-Term Oxidation Studies on Porous Stainless Steel 430L Substrate Relevant to Its Application in Metal-Supported SOFC Metals (IF 2.9) Pub Date : 2024-04-18 Kai Xu, Liangzhu Zhu
Metal-supported solid oxide fuel cells (MS-SOFCs) can be used in portable mobile power generators due to their excellent thermal cycling performance, low cost, and strong mechanical strength. The selection and lifetime of the support material are crucial factors that affect the cell’s performance and long-term stability. The oxidizability of porous 430L stainless steel in a dry air atmosphere at 800
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Effect of Precipitated Particles on Austenite Grain Growth of Al- and Nb-Microalloyed 20MnCr Gear Steel Metals (IF 2.9) Pub Date : 2024-04-17 Yingqi Zhu, Shitao Fan, Xiuzhen Lian, Na Min
The paper deals with the effect of the morphology characteristics, grain size, and the volume fraction of AlN- and NbC-precipitated particles on the prior austenite grain growth behavior in the Al- and Nb-microalloying 20MnCr gear steel during pseudo-carburizing heat treatments. The results indicate that the Nb addition in 20MnCr gear steel have a better effect on preventing austenite grain growth
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Microstructure Evolution and Strengthening Mechanisms of Mg–Steel Welds Subjected to Multiple Microshot Peening Treatment Metals (IF 2.9) Pub Date : 2024-04-17 Jianghui Wang, Chuan Xu
A surface modification through multiple microshot peening (MSP) was performed on Mg–steel weldment. Application of MSP was found beneficial to the elimination of surface microdefects owing to severe plastic deformation induced by MSP. Moreover, MSP treatment transformed the residual tensile stress of the weld surface into residual compressive stress, which was beneficial to inhibit the initiation and
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First Principles Study of the Effects of Si, P, and S on the ∑5 (210)[001] Grain Boundary of γ-Fe Metals (IF 2.9) Pub Date : 2024-04-17 Ying Xu, Weigang Cao, Mengzhe Huang, Fucheng Zhang
Solutes segregating at the grain boundary (GB) have a significant influence on the mechanical and chemical properties of steel. In this study, the segregation effects of Si, P, and S on γ-Fe ∑5 (210)[001] GB were systematically analyzed with solution energy, segregation energy, and tensile tests by using a first principles calculation. Si, P, and S are preferred to segregate at substitutional sites
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Optimization of High-Alumina Blast Furnace Slag Based on Exergy Analysis Metals (IF 2.9) Pub Date : 2024-04-15 Zhen Wang, Haiyan Zheng, Yan Zhang, Liang Ge
Raw material with a high Al2O3 content has led to an increase in the Al2O3 content in blast furnace slag, which has affected the normal operation of a blast furnace. The exergy analysis method is an important method for studying the energy utilization of high-alumina blast furnace smelting. In this paper, to investigate the impact of slag composition on exergy efficiency and optimize exergy efficiency
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Study on Al Evaporation during AlV55 Melting and Alloy Preparation Metals (IF 2.9) Pub Date : 2024-04-16 Bin Sun, Heli Wan, Baoqiang Xu, Xianjun Lei, Lanjie Li
Vacuum induction melting is a commonly used method for preparing AlV55 alloys. However, this method results in high Al evaporation losses, leading to poor cost control. Moreover, the influence of the process parameters on the alloy composition remains unclear. In this study, the evaporation pattern of Al in the melting and preparation processes of AlV55 alloys is studied, and measures for controlling
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Mechanical Properties of Interfaces between Mg and SiC: An Ab Initio Study Metals (IF 2.9) Pub Date : 2024-04-16 Zhipeng Yao, Samaneh Nasiri, Mingjun Yang, Michael Zaiser
Covalently bonded particles may exhibit extremely high strength, but their performance in the reinforcement of metal alloys crucially depends on the properties of their interfaces with the embedding matrix. Here, density functional theory is used for investigating a range of interface configurations between magnesium and silicon carbide in view of their mechanical properties. Interfaces are analyzed
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Study of Assimilation of Cored Wire into Liquid Steel Baths Metals (IF 2.9) Pub Date : 2024-04-15 Edgar-Ivan Castro-Cedeno, Julien Jourdan, Jonathan Martens, Jean-Pierre Bellot, Alain Jardy
Cored wire is a widespread technology used for performing additions into liquid metal baths as an alternative to bulk-additions. A laboratory-scale study was performed in which the kinetics of assimilation of cored wire in liquid steel baths were studied. An original dataset of positions of the wire/melt interface of cored wire as a function of the time and steel bath temperature was produced. The
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Orientation Relationship of the Intergrowth Al13Fe3 and Al13Fe4 Intermetallics Determined by Single-Crystal X-ray Diffraction Metals (IF 2.9) Pub Date : 2024-04-15 Yibo Liu, Changzeng Fan, Zhefeng Xu, Ruidong Fu, Bin Wen, Lifeng Zhang
In the Al-Fe binary system, the Al13Fe3 phase as well as the Al13Fe4 phase has similar icosahedral building blocks like those appearing in quasicrystals. Therefore, it is of vital importance to clarify the formation process of these two phases. Coexistence of the Al13Fe3 and Al13Fe4 phases was discovered from the educts obtained with a nominal atomic ratio of Al/Fe of 9:2 by high-pressure sintering
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A Comprehensive Review of Fatigue Strength in Pure Copper Metals (DHP, OF, ETP) Metals (IF 2.9) Pub Date : 2024-04-15 Eduardo Jiménez-Ruiz, Rubén Lostado-Lorza, Carlos Berlanga-Labari
Due to their exceptional electrical and thermal conductivity properties, high-purity copper (Cu-DHP) and copper alloys of similar composition, such as electrolytic tough-pitch (ETP), oxygen-free electronic (OFE) and oxygen-free (OF), have often been used in the manufacture of essential components for the electrical, electronic and power generation industries. Since these components are subject to cyclic
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Investigating the Thermal Conductance of the Cu/Si Interface Using the Molecular Dynamics Method Metals (IF 2.9) Pub Date : 2024-04-12 Shuai Liu, Yueyi Zhi, Hongquan Song, Huijin Li, Weiping Wang, Xiaoyan Hu, Dongbo Zhang
Investigating thermal transport at the Cu/Si interface holds significant importance, as understanding interface thermal conductance is crucial for enhancing materials interface thermal management, designing thermal interface materials, and improving the performance of thermoelectric devices. In this study, we conducted molecular dynamics simulations in conjunction with the Green–Kubo relation to calculate
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Simulation Models in a Fluidity Test of the Al-Si Alloy Metals (IF 2.9) Pub Date : 2024-04-12 Marek Šolc, Peter Blaško, Jozef Petrík, Lenka Girmanová, Andrea Blašková, Tomasz Małysa, Joanna Furman, Vladimír Socha
The goal of the fluidity test is to evaluate the ability of the melt to fill the cavity of the mold, which is one of the factors affecting the final quality of the castings. It is a technological test that is basically not standardized, therefore it is realized in different forms, for example using “horizontal” and “vertical” molds. The “horizontal” mold makes it easier to fulfill the condition of
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Additive Manufacturing for Rapid Sand Casting: Mechanical and Microstructural Investigation of Aluminum Alloy Automotive Prototypes Metals (IF 2.9) Pub Date : 2024-04-13 Silvia Cecchel, Giovanna Cornacchia
The automotive industry is undergoing a rapid evolution to meet today’s challenges; therefore, continuous innovation and product development are needed. Validation tests on prototypes play a crucial role in moving new components into industrial production. There is also a pressing need for faster prototyping processes. In this context, rapid sand casting (RSC), based on additive manufacturing technology
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Study on Recovery of Lithium from Lithium-Containing Aluminum Electrolyte Metals (IF 2.9) Pub Date : 2024-04-13 Rui Ji, Xi Cui, Wenzheng Zhang, Shichao Wang, Mingliang Yang, Tao Qu
The current process of recovering lithium from wasted aluminum electrolyte mostly entails extracting lithium from lithium-containing aluminum electrolyte by acid leaching and dissipation. Aiming at the disadvantages of the existing treatment method, such as the long process flow, environmental pollution, poor working environment, etc., we propose a new technology to extract lithium from the wasted
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Planning Mechanical Behavior of A356 Alloy Wheels by Using Distinct Heat Treatments Metals (IF 2.9) Pub Date : 2024-04-13 Adriano L. Tonetti, Wislei R. R. Osório, Ausdinir D. Bortolozo, Giovana S. Padilha
The aim of this investigation concerns evaluating the mechanical strength and microhardness values of A356 alloy samples in distinctive heat treatments, including those commonly applied to automotive wheels. It is recognized that A356 and Al-Si-based alloys exhibit considerable versatility across numerous industrial applications. The mechanical behavior obtained is intimately associated with different
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Hydrogen-Induced Microstructure Changes in Zr/Nb Nanoscale Multilayer Structures Metals (IF 2.9) Pub Date : 2024-04-12 Roman Laptev, Ekaterina Stepanova, Anton Lomygin, Dmitriy Krotkevich, Alexey Sidorin, Oleg Orlov
Zr/Nb nanoscale multilayer coatings (NMCs) were studied after hydrogenation in a gaseous environment at 400 °C. The hydrogen distribution and content were determined by pressure and hydrogenation time. Increasing the pressure from 0.2 to 2 MPa resulted in different hydrogen distribution within the Zr/Nb NMCs, while the concentration remained constant at 0.0150 ± 0.0015 wt. %. The hydrogen concentration
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Atomistic Simulation Study of Grain Boundary Segregation and Grain Boundary Migration in Ni-Cr Alloys Metals (IF 2.9) Pub Date : 2024-04-12 Pengwei Huang, Qixin Xiao, Wangyu Hu, Bowen Huang, Dingwang Yuan
Using Molecular Dynamics (MD) and Monte Carlo (MC) simulations, we studied the grain boundary (GB) segregation under different temperatures and Cr concentrations in Ni-Cr alloys with two distinct grain-boundary structures, i.e., Σ5(310)[010] and Σ101(200)[100]. Temperature plays a minor influence on Cr segregation for Σ5(310)[010] GB, but Cr segregation rapidly diminishes with elevating temperatures
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Optimizing Tensile Properties and Hardness of Inconel 718 by Cold Rolling Metals (IF 2.9) Pub Date : 2024-04-12 Wakshum Mekonnen Tucho, Anders Thon Sletsjøe, Navid Sayyar, Vidar Hansen
The as-received commercial Inconel 718 material was solid solution heat treated (ST), cold-rolled (CR), and precipitation-hardened (PH) to investigate the effects of deformation on the tensile properties, hardness, and texture. Three sets of specimens (0%, 20%, and 50% CR) were ST at 1100 °C/1 h, CR, and aged (720 °C/8 h + 650 °C/8 h) for the analysis. The ultimate tensile strength (UTS), 0.2% yield
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Numerical Simulation of Cathode Nodule Local Effects Metals (IF 2.9) Pub Date : 2024-04-12 Xiaoyu Wang, Chun Li, Jun Tie
As one of the main factors decreasing current efficiency and product quality, the growth of nodules deserves attention in the copper electrorefining process. Three-dimensional (3D) Finite Element Method models combining tertiary current distribution and fluid flow were established in this study to investigate the details of the growth of columnar nodules, including the electrolyte flow around the nodule
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Evaluation of Energy Utilization Efficiency and Optimal Energy Matching Model of EAF Steelmaking Based on Association Rule Mining Metals (IF 2.9) Pub Date : 2024-04-12 Lingzhi Yang, Zhihui Li, Hang Hu, Yuchi Zou, Zeng Feng, Weizhen Chen, Feng Chen, Shuai Wang, Yufeng Guo
In the iron and steel industry, evaluating the energy utilization efficiency (EUE) and determining the optimal energy matching mode play an important role in addressing increasing energy depletion and environmental problems. Electric Arc Furnace (EAF) steelmaking is a typical short crude steel production route, which is characterized by an energy-intensive fast smelting rhythm and diversified raw charge
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Modular Finite Element Modeling of Heavy Plate Rolling Processes Using Customized Model Reduction Approaches Metals (IF 2.9) Pub Date : 2024-04-11 Andreas W. Nemetz, Erik Parteder, Paula Reimer, Thomas Kaltenbrunner, Bodo Heise, Jagoba Lekue, Thomas Gross, Stefan Falkner, Rupert Egger, Klaus Zeman
Heavy plates are indispensable semi-finished products. Quality is strongly linked with production, so the rolling process must be performed within well-defined narrow tolerances. To meet this challenge, adequate modeling has become a necessity. In contrast to continuous strip rolling, where the workpiece can be modeled as a semi-infinite strip and 2D modeling can be argued quite well, this strategy
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Atomic-Scale Insights into Flow-Accelerated Corrosion of Carbon Steel Metals (IF 2.9) Pub Date : 2024-04-11 Do-Haeng Hur, Jeoh Han, Young-Kook Lee
The role of flow velocity on the formation and dissolution of oxides on SA106Gr.B carbon steel was investigated at both microscopic and atomic scales. In static water, a compact oxide layer with highly faceted magnetite particles was formed. Atomic-scale transmission electron microscopy images of such a layer revealed highly ordered and parallel lattice fringes, indicating that the oxide had very high
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Additive Manufacturing of Rare Earth Permanent Magnetic Materials: Research Status and Prospects Metals (IF 2.9) Pub Date : 2024-04-11 Yun Chen, Chengyue Xiong, Yongbing Li
With the rapid development of intelligent manufacturing, modern components are accelerating toward being light weight, miniaturized, and complex, which provides a broad space for the application of rare earth permanent magnet materials. As an emerging near-net-shape manufacturing process, additive manufacturing (AM) has a short process flow and significantly reduces material loss and energy consumption
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Evaluation of 3D Printing Orientation on Volume Parameters and Mechanical Properties of As-Build TI64ELI Metals (IF 2.9) Pub Date : 2024-04-11 Lebogang Lebea, Dawood Desai, Harry Ngwangwa, Fulufhelo Nemavhola
The discovery of the utility of various titanium alloys as implant biomaterials has resulted in these materials becoming far more popular than other metals in the medical world. However, the production of these materials using additive manufacturing has its own challenges some of those being the surface finish that can be used as an implantology material. As such, the purpose of this study is to evaluate
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Tribological Study of Fe–Cr Alloys for Mechanical Refinement in a Corn Stover Biomass Environment Metals (IF 2.9) Pub Date : 2024-04-11 Nicholas Brooks, Luke Brewer, Ali Beheshti, Keivan Davami
The tribological behavior of three Fe–Cr alloys with Cr contents ranging from ~12 to 16 wt.% as well as low-alloy high-carbon 52100 steel were investigated using pin-on-disk wear testing. Wear tests were performed in both open atmospheric (dry) and biomass environments (wet). Delamination and abrasion were observed to be the dominant wear regimes following dry wear tests. For wet testing, adhesion
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Dynamic Recrystallization Nucleation Mechanism and Precipitation Behavior of Homogeneous Al-Zn-Mg-Cu Alloy during Hot Deformation Metals (IF 2.9) Pub Date : 2024-04-11 Xiaodong Zhao, Kefan Cao, Yueping Fang, Yajie Li, Fengming Qin
The hot deformation behavior of Al-Zn-Mg-Cu alloy was investigated by flow stress curves in isothermal hot compression experiments with deformation temperatures of 350–450 °C and strain rates of 0.01 s−1 to 1 s−1, and the constitutive equation of homogeneous alloy was obtained. At the same time, the dynamic recrystallization and precipitation behavior during hot deformation and the relationship between
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The Effect of a Coating Sprayed Using Supersonic Flame Coating Technology on the Mechanical Properties and Interface Structure of a Thick Steel/Aluminum Composite Plate during Hot Rolling Metals (IF 2.9) Pub Date : 2024-04-11 Meng Yan, Meng-Ye Wang, Zi-Yi Cui, Jiu-Ba Xu, Hua-Gui Huang
Given the characteristics of a thick steel/aluminum composite plate, such as its large thickness and the significant differences between its components, it is difficult to prepare using direct rolling. Instead, a thick steel/coating/aluminum composite plate may be successfully prepared by combining supersonic flame coating technology with a hot rolling composite process. In this study, the interface
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Effect of Hot Deformation and Heat Treatment on the Microstructure and Properties of Spray-Formed Al-Zn-Mg-Cu Alloys Metals (IF 2.9) Pub Date : 2024-04-11 Lingfei Cao, Xiaomin Lin, Zhenghao Zhang, Min Bai, Xiaodong Wu
Spray forming is a manufacturing process that enables the production of high-performance metallic materials with exceptional properties. Due to its rapid solidification nature, spray forming can produce materials that exhibit fine, uniform, and equiaxed microstructures, with low micro-segregation, high solubility, and excellent workability. Al-Zn-Mg-Cu alloys have been widely used in the aerospace
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Poisson’s Ratio of Selected Metallic Materials in the Elastic–Plastic Region Metals (IF 2.9) Pub Date : 2024-04-07 Vladimír Chmelko, Tomáš Koščo, Miroslav Šulko, Matúš Margetin, Jaroslava Škriniarová
Poisson’s ratio is one of the fundamental characteristics in the material models that are used. In engineering practice, its values are assumed to be constant in the elastic and in the plastic region. In this paper, the conventionally used values of this number for steel materials and aluminum alloys are confronted with experimental results. By using non-contact strain measurements with the DIC (digital