Martensite aging effect in Ti-Pd and Ti-Pd-Ni high temperature shape memory alloys

被引：29

作者：

Cai, W ^{[1
]}

Otsuka, K

Asai, M

机构：

[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[2] Furukawa Elect Corp Ltd, R&D Yokohama Lab, Yokohama, Kanagawa 2200073, Japan

来源：

MATERIALS TRANSACTIONS JIM | 1999年 / 40卷 / 09期

关键词：

martensite aging effect; martensitic transformation; titanium-palladium alloy; titanium-palladium-nickel alloys; high temperature shape memory alloys;

D O I：

10.2320/matertrans1989.40.895

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of martensite aging in Ti-Pd and Ti-Pd-Ni high temperature shape memory alloys was investigated by DSC measurements and TEM observations. It is shown that the aging effect is strongly dependent on the alloy composition. T50Pd50 and Ti50Pd40Ni10 alloys exhibit a pronounced martensite aging effect, but no obvious aging effect was observed in Ti50Pd50-xNix (x greater than or equal to 20) alloys. The magnitude of the aging effect in the Ti50Pd40Ni10 alloy is much greater than that in the Ti50Pd50 alloy and the composition dependence of the aging effect is discussed. Besides, a curious feature of martensite aging was observed, i.e., A(s) and A(f) temperature increase does not saturate even after relatively long time aging. This is considered to be due to the recovery recrystallization of martensite during aging.

引用

页码：895 / 898

页数：4

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