Effect of Yttrium on Microstructure and Hot Corrosion Preformance of Laser Clad Co-Based Alloy

被引：0
|
作者：
张松
王茂才
颜永根
吴维(山文)
朱荆璞
机构：
[1] Academia Sinica
[2] China
[3] Shenyang Polytechnic University Shenyang 110021
[4] Institute of Corrosion and Protection of Metals
来源：
Journal of Rare Earths | 1993年 / 04期
关键词：
Rare earth; Laser cladding; Co-based alloy; Hot corrosion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The structure of the yttrium modified Co-base alloy layers formed by laser cladding on 2Cr13 and1Cr18Ni9Ti steel surfaces and its hot corrosion performance have been investigated systematically.The re-sults show that the Y-containing cobalt base clad alloy has a finer microstructure and higher corrosion re-sistance to the salt mixture of 75% NaSO+25%NaCl at high temperature.The unique properties are ob-tained with addition of 0.875% Y for the formation of a continuous and compact oxide scale.The compactscale may act as a barrier for the inward diffusion of oxygen and sulphur and also for the outward diffusionof alloying elements.
引用
收藏
页码：278 / 282
页数：5
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