Effects of temperature on the tribological behavior of Al0.25CoCrFeNi high-entropy alloy

被引:0
|
作者
L.M.Du [1 ]
L.W.Lan [1 ]
S.Zhu [2 ]
H.J.Yang [1 ]
X.H.Shi [1 ]
P.K.Liaw [3 ]
J.W.Qiao [1 ]
机构
[1] Research Center for High-Entropy Alloys, College of Materials Science and Engineering, Taiyuan University of Technology
[2] National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering
[3] Department of Materials Science and Engineering, The University of Tennessee
基金
美国国家科学基金会;
关键词
Abrasive wear; Friction and wear characteristics; Hardness; High temperature; Microstructure; Oxidation; Rapid solidification; Sliding; Wear mechanism;
D O I
暂无
中图分类号
TG139 [其他特种性质合金];
学科分类号
080502 ;
摘要
The tribological behavior of AlCoCrFeNi high-entropy alloy(HEA) sliding against SiNball was investigated from room temperature to 600°. The microstructure of the alloys was characterized by simple FCC phase with 260 HV. Below 300°, with increasing temperature, the wear rate increased due to high temperature softening. The wear rate remained stabilized above 300°due to the anti-wear effect of the oxidation film on the contact interface. The dominant wear mechanism of HEA changed from abrasive wear at room temperature to delamination wear at 200°, then delamination wear and oxidative wear at 300°and became oxidative above 300°. Moreover, the adhesive wear existed concomitantly below 300°.
引用
收藏
页码:917 / 925
页数:9
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