Microstructure and mechanical performance of new Al0.5CrFe1.5MnNi0.5 high-entropy alloys improved by plasma nitriding

被引：49

作者：

Tang, Wei-Yeh ^{[1
]}

Chuang, Ming-Hao ^{[1
]}

Chen, Hsuan-You ^{[1
]}

Yeh, Jien-Wei ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

来源：

SURFACE & COATINGS TECHNOLOGY | 2010年 / 204卷 / 20期

关键词：

High-entropy alloys; Plasma nitriding; rho Phase; Sliding wear; WEAR-RESISTANCE; SYSTEM; FCC;

D O I：

10.1016/j.surfcoat.2010.02.045

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Effects of plasma nitriding at 525 degrees C on microstructure and mechanical performance of a brand-new Al0.5CrFe1.5MnNi0.5 high-entropy alloy (HEA) were investigated. This alloy exhibits a large age hardening effect at temperatures from 600 to 800 degrees C and can be well-nitrided in the as-cast condition or the homogenized and furnace-cooled state. The nitrided layer has a thickness around 75 mu m and a peak hardness level of Hv 1250 near the surface. The nitrided Al0.5CrFe1.5MnNi0.5 alloys exhibit superior adhesive wear resistance to conventional nitrided steels by 25-54 times due to their much thicker highly-hardened layer and higher peak hardness than that of conventional steels. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：3118 / 3124

页数：7