Self-reinforced FeAl/Al2O3 composite coating produced by high velocity are spray deposition

被引：0

作者：

Tian, BH ^{[1
]}

Xu, BS ^{[1
]}

Ma, SN ^{[1
]}

Zhang, W ^{[1
]}

Hu, JZ ^{[1
]}

Liang, XB ^{[1
]}

机构：

[1] Luoyang Inst Technol, Dept Mat Sci & Engn, Luoyang 471039, Peoples R China

来源：

MECHANICS AND MATERIAL ENGINEERING FOR SCIENCE AND EXPERIMENTS | 2001年

关键词：

Fe3Al/Al2O3 composite coating; cored wire; high velocity arc spray; erosion-oxidation;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel cored wire for producing Al2O3 particulate self-reinforced Fe3Al-based intermetallic composite coating by high velocity arc spray deposition was developed. Results show that the cored wire high velocity arc spray deposited iron aluminide/Al2O3 composite coating consists of major phases of Fe3Al (Fe-29Al) and some FeAl and self-reinforced particulate phase of about 20%alpha-A(2)O(3). Results indicate that the oxidation rate of Fe3Al/Al2O3 coating is about one third of that of AISI 1018 steel after exposure at 650degreesC after 100 hours. The erosion-oxidation resistance at elevated temperature of Fe3Al/Al2O3 coating is higher than that of mild steel. Under oblique impact condition, the relative erosion-oxidation resistance of Fe3Al/Al2O3 is 3.36 times than that of 1018 steel at elevated temperature. It is found that the Fe3Al/Al2O3 coating exhibits typical erosion behavior of brittle materials at elevated temperature.

引用

页码：417 / 420

页数：4