Recent progress in oxidation behavior of high-entropy alloys: A review
Recent progress in oxidation behavior of high-entropy alloys: A review
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DOI：
10.1063/5.0116605
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发表时间：
2022-12
期刊：
影响因子：
6.1
通讯作者：
Poresh Kumar;T. Lam;P. Tripathi;S. Singh;P. Liaw;E. Huang
中科院分区：
文献类型：
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作者：
Poresh Kumar;T. Lam;P. Tripathi;S. Singh;P. Liaw;E. Huang
高熵合金（HEAs）和高熵材料（hem）的最新进展显示出在不同领域的应用潜力。HEAs和hem的出现因其令人兴奋的性质和特性而引起了人们的极大兴趣。由于它们由五种或更多的元素组成，其性质取决于元素组合的协同效应。通过选择合适的元素和制造方法，可以获得更好的性能。虽然HEAs和hem由于其混合熵、缓慢扩散、严重的晶格畸变和多金属鸡尾酒效应而具有许多独特的行为，但有必要总结数据以确定其可行性和潜力。例如，在航空航天应用的高温环境中，追求高热稳定性、热疲劳、抗蠕变、高刚度和更好的耐腐蚀性的综合性能。此外，获得这些材料的环境相容性和使用寿命-氧化行为是至关重要的方面之一，因此，最近已经进行了探索。因此，本研究旨在总结氧化行为的最新进展和发现，并强调未来研究前景的挑战和争议，特别是在不同应用的可持续性方面。此外，本文还对HEAs/HEMs涂层的整体结构和性能进行了综述。
Recent advancements in high-entropy alloys (HEAs) and high-entropy materials (HEMs) show promising potential for different fields of applications. The emergence of HEAs and HEMs has gained significant interest for their exciting nature and properties. As they consist of five or more elements in considerable amounts, properties vary depending on the synergistic effect of combinations of elements. By selecting proper elements and manufacturing methods, better properties can be tuned. Although many unique behaviors of HEAs and HEMs are reported due to their mixing entropy, sluggish diffusion, severe lattice distortion, and multi-metallic cocktail effects, it is necessary to summarize the data to map their feasibility and potential. For example, the combined properties of high thermal stability, thermal fatigue, creep resistance, higher stiffness, and better corrosion resistance for elevated-temperature environments in aerospace applications are pursued. Moreover, gaining the environmental compatibility and longevity of service-life-oxidation behavior of these materials is one of the crucial aspects and, hence, has been recently explored. Therefore, this Research Update aims at summarizing the recent developments and findings in oxidation behavior and highlighting the challenges and controversies for future research perspectives, particularly, on the sustainability for different applications. Moreover, besides the bulk structure, the performance of the HEAs/HEMs coatings is also reviewed.