磨损(侵蚀/磨损)和腐蚀在几个工业装置中协同作用,其中腐蚀性流体与固相一起循环,导致相互损坏。高熵合金(HEAs)是有前途的材料,可用于这种类型的环境,因为它们具有出色的化学性能,电化学和机械性能。虽然目前有几篇关于腐蚀的评论文章,机械性能,HEAs的发展,微观结构,和HEA涂层,不可否认,缺乏针对散装HEA的摩擦学行为和摩擦腐蚀的全面而严格的审查。这项工作旨在收集,总结,并批判性地回顾HEA在过去20年中处理磨损的主要成就和进展,腐蚀,和耐磨性。它突出了可以影响HEAs性能的最重要方面,包括基础合金元素的变化,温度的影响,热处理,和磨损测试参数(负载,速度,持续时间,距离)。此外,运行机制,以及显微组织与耐磨性之间的关系,将描述微观结构和耐腐蚀性之间的关系。最后,将回顾文献中报道的有关HEAs摩擦腐蚀的文章。这项研究的结果有望指导潜在的研究人员,并为他们提供HEAs在耐腐蚀性方面的当前趋势的总和,耐磨性和两者的协同作用,希望帮助他们做出正确的决定来设计和开发新的HEAs或改进现有HEAs的研究。
Wear (erosion/abrasion) and
corrosion act in synergy in several industrial installations where corrosive fluids circulate together with a solid phase causing mutual damage. High entropy alloys (HEAs) are promising materials to be used in that type of environments because of their outstanding chemical, electrochemical and mechanical properties. While several
review articles are currently available on
corrosion, mechanical properties, development of HEAs, microstructure, and HEA coatings, there is an undeniable lack of a comprehensive and critical
review focusing on the tribological behaviour and tribocorrosion of bulk HEAs. This work aims to collect, summarise, and critically
review the major accomplishments and progresses of HEAs over the last 20 years dealing with wear,
corrosion, and wear-
corrosion resistance. It highlights the most significant aspects that can influence the performance of HEAs including the change of the base alloying elements, the influence of the temperature, heat treatment, and wear test parameters (load, velocity, duration, distance). Furthermore, operating mechanisms, together with the relationship between microstructure and wear resistance, and between microstructure and corrosion resistance will be described. Finally, the articles that have been reported in the literature dealing with tribocorrosion of HEAs will be reviewed. The results of this study are expected to guide potential researchers and provide them with the sum of current trends in HEAs in terms of corrosion resistance, wear resistance and the synergy of both, in the hope of helping them to make the right decision to design and develop new HEAs or improve the research on the existing ones.