Microstructure of Ti-6Al-4V processed by hydrogenation

被引：26
|
作者：
Yu, C. Y.
Shen, C. C.
Perng, T. P. [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[2] Yuan Ze Univ, Dept Chem Engn & Mat Sci, Chungli 320, Taiwan
来源：
SCRIPTA MATERIALIA | 2006年 / 55卷 / 11期
关键词：
Ti-6Al-4V; precipitation; hydrogenation; disproportionation;
D O I：
10.1016/j.scriptamat.2006.08.010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Precipitation of alpha(2) (Ti3Al) and beta phases in the form of platelet or spherical particle in the alpha matrix of Ti-6Al-4V was observed after hydrogenation/dehydrogenation treatment at 600 degrees C. The crystallographic orientation relationship of alpha and a2 was determined to be < 1210 >(alpha)parallel to < 1210 >(alpha 2) and {0001}(alpha)parallel to{0001}(alpha 2). The nanoscale beta phase precipitated in the alpha matrix was also observed, with their orientation relationships being {0001}(alpha)parallel to{110}(beta) and < 1120 >(alpha)parallel to < 111 >(beta). The formation of alpha(2) and beta phases can be attributed to the disproportionation effect. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1023 / 1026
页数：4
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