Significant reduction in friction and wear of a high-entropy alloy via the formation of self-organized nanolayered structure

被引：5
|
作者：
Lu Yang [1 ]
Zhuo Cheng [1 ]
Weiwei Zhu [1 ,2 ]
Cancan Zhao [1 ]
Fuzeng Ren [1 ]
机构：
[1] Department of Materials Science and Engineering, Southern University of Science and Technology
[2] Institute of Applied Physics and Materials Engineering, Faculty of Science & Technology, University of Macau
来源：
JournalofMaterialsScience&Technology | 2021年 / 73卷 / 14期
关键词：
D O I：
暂无
中图分类号：
TG139 [其他特种性质合金]; TB383.1 [];
学科分类号：
摘要：
Sliding wear-induced nanolayering and its positive impact on wear resistance have been observed in conventional binary alloys with a matrix of high stacking fault energy (SFE),but this concept has never been reported in high-entropy alloys (HEAs) with low SFE.Here,we design and fabricate a (CoCrFeNi)AgHEA,consisting of a face-center-cubic (fcc) CoCrFeNi HEA matrix with low SFE and uniformly dispersed Ag precipitates.In comparison with CoCrFeNi,a significant reduction in friction and wear was found in (CoCrFeNi)AgHEA through the spontaneous formation of nanolayered subsurface microstructure during wear.The finding suggests a novel approach for designing HEAs that can achieve low friction and wear.
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页码：1 / 8
页数：8
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