The phase and microstructure of TC21 alloy

被引:93
作者
Fei, Yuhuan [1 ,2 ]
Zhou, Lian [2 ]
Qu, Henglei [2 ]
Zhao, Yongqing [2 ]
Huang, Chuanzhen [1 ]
机构
[1] Shandong Univ, Sch Mech Engn, Ctr Adv Jet Engn Technol CaJET, Jinan 250061, Peoples R China
[2] NW Inst Nonferrous Met Res, Xian 710006, Peoples R China
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 494卷 / 1-2期
关键词
TC21; alloy; Phase analysis; Microstructure;
D O I
10.1016/j.msea.2008.04.017
中图分类号
TB3 [工程材料学];
学科分类号
0805 [材料科学与工程]; 080502 [材料学];
摘要
TC21 alloy is a new alpha-beta damage tolerance titanium alloy with high strength and high toughness. Little work has been done in the field of microstructure and phase analysis since this alloy was developed. The phase and microstructure of TC21 alloy under different heat-treatment were investigated in this paper. Different experiment methods such as OM, SEM, TEM and XRD were adopted to investigate the microstructure and phase of TC21. The result showed that heat-treatment parameters (solution temperature, cooling rate and cooling mode) had influence on the feature of alpha phase, beta phase and secondary alpha phase. Two precipitated phases (alpha(2)-Ti3Al and B-2-Ti2AlNb) were discovered by XRD analysis. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:166 / 172
页数:7
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