Microstructure and oxidation behavior of Ti-6Al-2Zr-1Mo-1V-based alloys with Sc addition

被引：15
作者：
Xiao, W. L. [1 ]
Ping, D. H. [1 ]
Murakami, H. [1 ]
Yamabe-Mitarai, Y. [1 ]
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 580卷
关键词：
Near alpha-Ti alloy; Scandium; Microstructure; Mechanical properties; Oxidation; TEMPERATURE TITANIUM-ALLOYS;
D O I：
10.1016/j.msea.2013.05.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructural evolution, mechanical properties and oxidation behavior of Ti-6Al-2Zr-1Mo-1V-based alloys with 0-3.8 wt% Sc additions have been investigated. The Sc addition decreased the p-trans temperature and refined the microstructure of the alloy. Sc partitioned into the a-phase and was depleted in the beta-phase with increasing Sc content. This resulted in the formation of a small amount of Sc2O3 particles in the high Sc-containing alloys. The Sc addition improved the yield strength at both room temperature and high temperature, whereas refined the oxide products and decreased the oxidation resistance of the base alloy. The oxidation behavior with Sc addition was discussed. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：266 / 272
页数：7
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