Effect of yttrium and erbium on the microstructure and mechanical properties of Ti-Al-Nb alloys

被引：21
|
作者：
Ke, Yubin [1 ,2 ]
Duan, Huiping [1 ]
Sun, Yanran [1 ]
机构：
[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 528卷 / 01期
关键词：
Ti-Al-Nb; Rare earth; Microstructure; Mechanical property; UNDERCOOLED MELTS; PHASE; BEHAVIOR; SYSTEM; CAST;
D O I：
10.1016/j.msea.2010.09.011
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of yttrium and erbium on the microstructure and mechanical property of Ti-16A1-27Nb alloy was investigated in this paper. Experimental results showed that the phase constituent had not been changed by Y or Er additive and all the alloys were simply composed of beta, O and alpha phases. However, the grain size of the alloy can be sharply refined by Y or Er element. Compression test showed that the mechanical property of the alloy cannot be obviously increased by Y additive but can be sharply improved by Er additive because of the presence of fine (AlTiNb)(2)Er(3) precipitates in the beta phase. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：220 / 225
页数：6
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