Hydrogen-induced amorphization in Ti-Al-Zr compounds with D019, b2 and FCC structures

被引：5
|
作者：
Miyajima, Y [1 ]
Ishikawa, K [1 ]
Aoki, K [1 ]
机构：
[1] Kitami Inst Technol, Dept Mat Sci, Kitami, Hokkaido 0908507, Japan
来源：
MATERIALS TRANSACTIONS | 2002年 / 43卷 / 05期
关键词：
intermetallic compound; amorphous; hydrogen; transformation;
D O I：
10.2320/matertrans.43.1085
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Structural changes and the hydrogen content in pseudobinary Ti3Al-Zr3Al, i.e., Ti1-x-yAlyZrx alloys (y = 0.25, 0.30 and 0.35) by hydrogenation were examined with a powder X-ray diffractometer (XRD) and a hydrogen analyzer. Single-phases with the D0(19) and the B2 structures were formed in the homogenized alloys, while an fcc phase coexisted with the B2 phase. These D0(19), B2 and fcc phases changed into an amorphous phase by hydrogenation below 573 K. This is the first report of hydrogen-induced amorphization (HIA) by hydrogenation of a single-phase bcc type (B2) alloy. Furthermore, crystallization behavior of the hydrogen-induced amorphous Ti-Al-Zr alloys was investigated by a differential scanning calorimeter (DSC) and XRD.
引用
收藏
页码：1085 / 1088
页数：4
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