TiN/Al2O3-reinforced composite coating prepared by reactive nitrogen-arc cladding process

被引：0
|
作者：
Jianjun Hao
Jianchang Li
Shuhua Yang
Jianguo Zhao
Yuejin Ma
机构：
[1] Agriculture University of Hebei,College of Mechanical and Electrical Engineering
来源：
Welding in the World | 2016年 / 60卷
关键词：
GTA surfacing; Particle reinforced composites; Nitrogen; Chemical reactions; Alumina; Nitrides; Wear resistance; Nickel alloys;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A TiN/Al2O3-reinforced composite coating was fabricated on 45# steel substrate by reactive nitrogen-arc cladding process with Ti-Al2O3-Fe-Ni60A powder blends as cladding materials and pure nitrogen as reactive and protective gas. The microstructure, microhardness, and wear behavior of the composite coating were investigated using scanning electron microscope (SEM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX), microhardness tester, and the friction abrasion testing machine. The formation mechanism of the phases in the composite coating was discussed. Results show that the composite coating consists of primary TiN/Al2O3 as the reinforcing phase. The ceramic composite coating is metallurgically bonded to the 45# steel substrate. The ceramic composite coating has high hardness and excellent wear resistance.
引用
收藏
页码：169 / 175
页数：6
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