Laser remelting of NiCoCrAlY clad coating on superalloy

被引：10

作者：

Zhang, YP

Zhou, ZR

Cheng, JM

Ge, YL

Ma, H

机构：

[1] SINO ACAD,INST MET,SHENYANG,LIAONING,PEOPLES R CHINA

[2] CHENGDU AVIAT ENGINE CO,CHENGDU,SICHUAN,PEOPLES R CHINA

来源：

SURFACE & COATINGS TECHNOLOGY | 1996年 / 79卷 / 1-3期

关键词：

clad coating; laser-remelting; corrosion resistance; thermal cycle resistance;

D O I：

10.1016/0257-8972(95)02448-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

NiCoCrAlY clad coating on the GH140 alloy surface was remelted by laser. The studies show that selecting proper laser remelting parameters can refine the structure in the remelted zone, increase the density of coating, strengthen the interfacial bonding and, moreover, hardly dilute the alloying elements in the laser remelting zone. As a result, the resistance of the coating against the corrosion and thermal cycles is significantly increased. Also, the good plasticity of the original coating remains.

引用

页码：131 / 134

页数：4