Microstructures, martensitic transformation and shape memory behaviors of aged Ti50.5Ni33.5Cu11.5Pd4.5 alloys

被引：7

作者：

Li, Hang ^{[1
,2
]}

Meng, Xianglong ^{[1
]}

Cai, Wei ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China

[2] Heilongjiang Univ Sci & Technol, Coll Mat Sci & Engn, Harbin 150027, Heilongjiang, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 780卷

关键词：

Ti-Ni-Cu-Pd alloy; Martensitic transformation; Microstructure; Aging; Shape memory behavior; THERMAL CYCLING STABILITY; MECHANICAL-PROPERTIES; NITI; PHASE; DEFORMATION; PSEUDOELASTICITY; REVERSIBILITY; HYSTERESIS; DEPENDENCE; FATIGUE;

D O I：

10.1016/j.jallcom.2018.12.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of aging on the microstructures, martensitic transformation and shape memory behaviors of a Ti50.5Ni33.5Cu11.5Pd4.5 alloy were investigated. The precipitation of Ti2Cu-type phase can both improve the shape memory effect and functional stabilities, while keeping near-zero thermal hysteresis. Aged at 500 degrees C for 1 h, the strain recovery rate reaches a value of 97.8% while the tensile deformation is 5%, which is 21% higher than that of the solution-treated alloy. Meanwhile there show excellent functional stabilities during thermal cycling in both loaded and stress-free situations. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：800 / 804

页数：5

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