Effect of the amount of SiC particles on the microstructure, mechanical and wear properties of FeMnCoCr high entropy alloy composites

被引：38
作者：
Gu, Yan-ling [1 ]
Yi, Meng -ling [1 ]
Chen, Yang [1 ]
Tu, Jian [1 ,2 ]
Zhou, Zhi-ming [1 ,2 ]
Luo, Jin-ru [3 ]
机构：
[1] Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400054, Peoples R China
[2] Chongqing Univ Technol, Chongqing Municipal Key Lab Inst Higher Educ Mould, Chongqing 400054, Peoples R China
[3] China Acad Engn Phys, Inst Mat, Mianyang 621908, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2022年 / 193卷
基金：
中国国家自然科学基金;
关键词：
High -entropy alloy; Composite; Ceramic particles; Wear resistance; Mechanical properties; MATRIX COMPOSITES; BEHAVIOR; RESISTANCE; STRENGTH; DUCTILITY; COATINGS; TI;
D O I：
10.1016/j.matchar.2022.112300
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ceramic particle reinforced high entropy (HEA) alloy composites have attracted considerable attention due to their excellent combination of strength, ductility, and wear resistance. In this work, the high entropy alloy composites (Fe50Mn30Co10Cr10 matrix) with the different SiC contents (0.1, 0.5, 1, and 3 vol%) were fabricated by arc melting. The effect of SiC content on microstructure characteristics, mechanical and wear properties of Fe50Mn30Co10Cr10 composites were studied. The results showed that SiC stabilized the gamma phase and refined the grain sizes. In addition, the number of epsilon variants were decreased with refined grain sizes. The composite with 1 vol% SiC optimized the combination of ultimate tensile strength and ductility, which is attributed to grainboundary strengthening, twin boundary strengthening, dispersion strengthening and load-bearing strengthening. Simultaneously, the optimized composite with 1 vol% SiC displayed the best wear friction ability, in which the proper SiC content played a key role in carrying load during friction.
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页数：10
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