Stress-strain behavior of porous NiTi alloys prepared by powders sintering

被引：98

作者：

Zhu, SL

Yang, XJ

Fu, DH

Zhang, LY

Li, CY

Cui, ZD ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Sch Mech Engn, Tianjin 300072, Peoples R China

[3] Tianjin Med Univ, Sch Dent, Tianjin 300070, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 408卷 / 1-2期

基金：

高等学校博士学科点专项科研基金;

关键词：

powder metallurgy; shape memory alloy; porous NiTi alloy; mechanical property;

D O I：

10.1016/j.msea.2005.08.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Porous NiTi shape memory alloys have recently attracted extensive interests for their potential use as biomedical materials. Stress-strain behaviors of porous NiTi alloy fabricated by element powder sintering in argon atmosphere were investigated in this paper by compression and flexural tests. The results indicated that the ultimate compressive strength and the flexural strength of the porous NiTi alloy depended on the densities of the porous NiTi alloy and the sintering conditions. In compression experiments, the pre-strain could completely recover while it was less than 2%. The shape recovery of porous NiTi alloy rested with the unique SME of NiTi phase and pores structure. The pores have adverse effects on the shape recovery of NiTi alloy under the experiment conditions. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：264 / 268

页数：5

共 17 条

[1] Powder metallurgical fabrication processes for NiTi shape memory alloy parts [J].