This study explored the impact of varying weight percentages of TiMoVWCr high-entropy alloy (HEA) powder addition on A356 composites produced using friction stir processing (FSP). Unlike previous research that often focused on singular aspects, such as mechanical properties, or microstructural analysis, this investigation systematically examined the multifaceted performance of A356 composites by comprehensively assessing the microstructure, interfacial bonding strength, mechanical properties, and wear behavior. The study identified a uniform distribution of TiMoVWCr HEA powder in the composition A356/2%Ti2%Mo2%V2%W2%Cr, highlighting the effectiveness of the FSP technique in achieving homogeneous dispersion. Strong bonding between the reinforcement and matrix material was observed in the same composition, indicating favorable interfacial characteristics. Mechanical properties, including tensile strength and hardness, were evaluated for various compositions, demonstrating significant improvements across the board. The addition of 2%Ti2%Mo2%V2%W2%Cr powder enhanced the tensile strength by 36.39%, while hardness improved by 62.71%. Similarly, wear resistance showed notable enhancements ranging from 35.56 to 48.89% for different compositions. Microstructural analysis revealed approximately 1640.59 grains per square inch for the A356/2%Ti2%Mo2%V2%W2%Cr processed composite at 500 magnifications. In reinforcing Al composites with Ti, Mo, V, W, and Cr high-entropy alloy (HEA) particles, each element imparted distinct benefits. Titanium (Ti) enhanced strength and wear resistance, molybdenum (Mo) contributed to improved hardness, vanadium (V) promoted hardenability, tungsten (W) enhanced wear resistance, and chromium (Cr) provided wear resistance and hardness. Anticipating the potential applications of the developed composite, the study suggests its suitability for the aerospace sector, particularly in casting lightweight yet high-strength parts such as aircraft components, engine components, and structural components, underlining the significance of the investigated TiMoVWCr HEA powder-modified A356 composites.

中文翻译：

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探索 AlSi7Mg0.3 复合材料与 TiMOVWCr 高熵合金粉末的微观结构、界面、机械和磨损性能

本研究探讨了不同重量百分比的 TiMoVWCr 高熵合金 (HEA) 粉末添加对采用搅拌摩擦加工 (FSP) 生产的 A356 复合材料的影响。与以往的研究通常侧重于机械性能或微观结构分析等单一方面不同，本研究通过综合评估微观结构、界面结合强度、机械性能和磨损行为，系统地研究了 A356 复合材料的多方面性能。该研究确定了 TiMoVWCr HEA 粉末在 A356/2%Ti2%Mo2%V2%W2%Cr 成分中的均匀分布，突出了 FSP 技术在实现均匀分散方面的有效性。在相同的组合物中观察到增强体和基体材料之间的牢固结合，表明良好的界面特性。对各种组合物的机械性能（包括拉伸强度和硬度）进行了评估，结果显示出全面的显着改进。添加2%Ti2%Mo2%V2%W2%Cr粉末使抗拉强度提高了36.39%，硬度提高了62.71%。同样，不同成分的耐磨性也显示出显着的增强，从 35.56% 到 48.89%。微观结构分析显示，在 500 倍放大倍数下，A356/2%Ti2%Mo2%V2%W2%Cr 加工复合材料的晶粒数约为每平方英寸 1640.59 个。在使用 Ti、Mo、V、W 和 Cr 高熵合金 (HEA) 颗粒增强 Al 复合材料时，每种元素都具有独特的优势。钛（Ti）增强强度和耐磨性，钼（Mo）有助于提高硬度，钒（V）促进淬透性，钨（W）增强耐磨性，铬（Cr）提供耐磨性和硬度。预计所开发复合材料的潜在应用，该研究表明其适用于航空航天领域，特别是铸造轻质但高强度的零件，如飞机部件、发动机部件和结构部件，强调了所研究的 TiMoVWCr HEA 粉末的重要性。改良的A356复合材料。