Superalloys are a group of engineering alloys designed to operate at elevated temperatures, and they find application in various engineering sectors where a high-temperature application is required such as nuclear power plants, steam turbines, and aircraft. There are three important classes of superalloys, that is, iron-based, cobalt-based, and nickel-based superalloys. Among them, nickel-based superalloys find great application at both low and high temperatures due to their higher mechanical strength, good fatigue life, excellent wear, and corrosive resistance. This review article aims to review the tribological studies of the nickel-based Inconel superalloys. The article deals with the systematic studies of wear behavior, wear mechanism, and nanostructured glaze layer formation over the wear surfaces. The effect of load and temperatures influencing the wear rate and wear mechanisms of nickel-based superalloys are also discussed in detail. Along with that, the focus of this review article is to discuss the advancement in the tribological studies of the Inconel-718 superalloy. The development in the Inconel-718 alloys (surface alloying, laser shot peening, composites, microstructure engineering, etc.) to improve wear resistance is also discussed in a systematic manner. This article is expected to assist the researchers in identifying the trend and research gaps so that they can contribute to further tribological developments of nickel-based superalloys.

中文翻译：

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镍基Inconel高温合金摩擦学行为研究进展

超级合金是一组设计用于在高温下工作的工程合金，可应用于需要高温应用的各种工程领域，例如核电站、蒸汽涡轮机和飞机。高温合金有三类重要的类别，即铁基、钴基和镍基高温合金。其中，镍基高温合金由于具有较高的机械强度、良好的疲劳寿命、优异的耐磨性和耐腐蚀性，在低温和高温下都有广泛的应用。本文旨在综述镍基铬镍铁合金高温合金的摩擦学研究。本文涉及磨损行为、磨损机制以及磨损表面纳米结构釉层形成的系统研究。还详细讨论了载荷和温度对镍基高温合金磨损率和磨损机制的影响。除此之外，这篇综述文章的重点是讨论 Inconel-718 高温合金摩擦学研究的进展。还系统地讨论了 Inconel-718 合金的开发（表面合金化、激光喷丸、复合材料、微观结构工程等）以提高耐磨性。本文预计将帮助研究人员确定趋势和研究差距，以便为镍基高温合金摩擦学的进一步发展做出贡献。