Elastic constants of Ti50Ni30Cu20 alloy prior to martensitic transformation

被引：2

作者：

Ren, X ^{[1
]}

Taniwaki, K

Otsuka, K

Suzuki, T

Tanaka, K

Chumlyakov, YI

Ueki, T

机构：

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

[2] Tsukuba Inst Sci & Technol, Ibaraki, Osaka 3000811, Japan

[3] Kyoto Univ, Dept Mat Sci, Kyoto 6068501, Japan

[4] Siberian Phys Tech Inst, Tomsk 634050, Russia

[5] Furukawa Elect Corp Ltd, Yokohama R&D Lab, Nishi Ku, Yukohama 2200073, Japan

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1999年 / 79卷 / 01期

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Elastic constants of Ti50Ni30Cu20 alloy prior to the martensitic transformation B2 --> B19 was measured for the first time by using the rectangular parallelepiped resonance method. The softening in both shear modulus c' and c(44) was found with approaching transformation temperature. As a result of soft c(44), the anisotropy factor shows a low value of 2.8 in the vicinity of the transformation temperature. c(11), c(12), and bulk modulus were found to show little temperature dependence in the vicinity of the transformation temperature. Compared with the binary Ti50Ni50 alloy, Ti50Ni30Cu20 alloy exhibits a 40% higher and increasing anisotropy with approaching transformation temperature. Based on the experimental results, we explained why Ti50Ni30Cu20 transforms into B19 martensite, while Ti50Ni50 transforms into a strange monoclinic B19' martensite.

引用

页码：31 / 41

页数：11

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