Influence of heat treatment on microstructure and mechanical properties of FeCrNi coating produced by laser cladding

被引：23

作者：

Gong, Fu-bao ^{[1
]}

Shen, Jun ^{[1
]}

Gao, Run-hua ^{[1
]}

Zhang, Tao ^{[1
]}

Xie, Xiong ^{[1
]}

Li, Yang ^{[1
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2016年 / 26卷 / 08期

基金：

中国国家自然科学基金;

关键词：

laser cladding; microstructure; microhardness; tensile strength; heat treatment; POWDER; DEPOSITION; EVOLUTION; STEEL; ALLOY;

D O I：

10.1016/S1003-6326(16)64328-5

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The FeCrNi alloy powders were used on the dovetail groove of FV520B steel to fabricate the multilayer laser cladding layers. The effects of heat treatment on the microstructure and mechanical properties of FeCrNi layers were investigated. The results showed that the heat treatment at the temperature ranged from 1073 to 1273 K refined the grains of the substrate materials and removed the soft zone of hardness between the fused zone (FZ) and base material (BM) effectively mainly due to a secondary quench of heat treatment. When the temperature of heat treatment was 1073 K, the maximum ultimate tensile strength (UTS) values of the laser cladding component were obtained. However, the heat treatment at high temperature had a bad effect on wear resistance of coatings at some extent.

引用

页码：2117 / 2125

页数：9

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