Metastable microstructures in rapidly solidified Ni rich TiNi alloys

被引:2
|
作者
Nagarajan, R [1 ]
Ranganathan, S [1 ]
Aoki, K [1 ]
Chattopadhyay, K [1 ]
机构
[1] KITAMI INST TECHNOL,DEPT MAT SCI,KITAMI,HOKKAIDO 090,JAPAN
来源
MATERIALS TRANSACTIONS JIM | 1997年 / 38卷 / 05期
关键词
glass; T-0; curve; massive solidification; precipitation; faulted structure; electron/atom ratio;
D O I
10.2320/matertrans1989.38.406
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The metastable microstructures in two rapidly solidified Ni rich Ti-Ni alloys are studied. A first report of the presence of a cubic phase with three times the lattice parameter of B2-TiNi in melt spun Ti40Ni60 alloy is presented. This phase has precipitated from the massively solidified BZ-TiNi. We also report the formation of a faulted structure (A), polytypic to TiNi3 along with TiNi3 in melt spun Ti30Ni70 alloy. It is argued that this structure is stabilised due to a specific valence electron by atom ratio.
引用
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页码:406 / 412
页数:7
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