Microstructure and oxidation resistance of laser-remelted Mo-Si-B alloy

被引：46
|
作者：
Wang, Fang [1 ]
Shan, Aidang [1 ]
Dong, Xianping [1 ]
Wu, Jiansheng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Key Lab High Temp Mat & Testing, Minist Educ, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China
来源：
SCRIPTA MATERIALIA | 2007年 / 56卷 / 09期
关键词：
transition metal silicides; laser treatment; grain refinement; oxidation;
D O I：
10.1016/j.scriptamat.2007.01.025
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An annealed Mo-Si-B alloy containing coarse Mo + Mo5SiB2 + Mo3Si phases was remelted by Nd:YAG laser in argon. The uniform and fine microstructure of laser-remelted alloy was observed, which possessed the same constituent phases as annealed Mo-Si-B alloy. Due to a continuous B-SiO2 layer formed on the surface of laser-remelted alloy in the early stage of oxidation, it has better oxidation resistance than annealed alloy at 1000 and 1200 degrees C. (c) 2007 Acta Materialia, Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：737 / 740
页数：4
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