Microstructure, transformation behavior and mechanical properties of a (Ti50Ni38Cu12)93Nb7 alloy

被引：17

作者：

Jiang, Daqiang ^{[1
,2
]}

Liu, Yinong ^{[1
]}

Liu, Weilong ^{[2
]}

Song, Lixie ^{[2
]}

Jiang, Xiaohua ^{[2
]}

Yang, Hong ^{[1
]}

Cui, Lishan ^{[2
]}

机构：

[1] Univ Western Australia, Sch Mech & Chem Engn, Nedlands, WA 6009, Australia

[2] China Univ Petr, Dept Mat Sci & Engn, Beijing, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 627卷

基金：

中国国家自然科学基金; 澳大利亚研究理事会;

关键词：

Shape memory alloy; Martensitic transformation; Mechanical property; SHAPE-MEMORY ALLOYS; MARTENSITIC-TRANSFORMATION;

D O I：

10.1016/j.msea.2015.01.028

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A (Ti50Ni38Cu12)(93)Nb-7 alloy is fabricated by arc melting, forging and drawing. The microstructure, transformation behavior and mechanical properties were investigated by means of scanning electron microscope (SEM), differential scanning calorimeter (DSC), dynamic mechanical analyzer (DMA) and tensile test machine. SEM observation showed that the as cast alloy is composed of TiNiCu and Nb-rich phases. After drawing, the alloy showed single step transformations during heating and cooling within the whole annealing temperature range from 400 degrees C to 800 degrees C. With the increase of the annealing temperature, both the transformation temperatures and the damping capacity increased first and then decreased. The ultimate strength of the alloy after annealing at 400 degrees C is over 1500 MPa and the maximum elongation of the alloy after annealing at 800 degrees C is more than 20%. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：348 / 350

页数：3

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