The effect of ageing on the microstructure and mechanical properties of Ni53Mn23.5Ga18.5Ti5 ferromagnetic shape memory ally

被引：18

作者：

Dong, G. F. ^{[1
]}

Tan, C. L. ^{[2
]}

Gao, Z-Y. ^{[1
]}

Feng, Y. ^{[1
]}

Sui, J. H. ^{[1
]}

Cai, W. ^{[1
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Precis Hot Proc Metals, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

[2] Harbin Univ Sci & Technol, Dept Appl Phys, Harbin 150080, Peoples R China

来源：

SCRIPTA MATERIALIA | 2008年 / 59卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Ni(53)Mn(23.5)Ga(18.5)Ti(5) alloy; ageing; dislocation strengthening; mechanical properties; ferromagnetic shape memory alloys;

D O I：

10.1016/j.scriptamat.2008.02.058

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of ageing on the microstructure and mechanical properties of five-layered tetragonal Ni(53)Mn(23.5)Ga(18.5)Ti(5) alloy has been studied. The results show that ageing increases the amount and decreases the size of Ni(3)Ti precipitates. In addition, the compressive strength of alloys is clearly enhanced and compressive strain is slightly decreased by ageing, which can be attributed to the strengthening of the Ni(3)Ti precipitates and dislocation. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：268 / 271

页数：4

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