Paper Title:
Microstructure and Shape Memory Properties of Biomedical Ti-(40-65) Ta (wt. %) Alloys
  Abstract

Recently Ni-free Ti-based shape memory alloys have been actively studied for biomedical applications in order to replace Ti-Ni alloys which bear the possibility of Ni-hypersensitivity. In this paper, The Ti-(40-65) Ta (wt. %) alloys have been studied with regard to their microstructure, mechanical and shape memory properties, as well as the effect of heat treatment on their shape memory behaviors. The results show that Ti-40wt. %Ta exhibits single orthorhombic structure (''), Ti-55wt. %Ta mainly '' and a little BCC structure (β), and Ti-65wt. % Ta mainly β and a little '' at room temperature. The tensile strengths of Ti-Ta alloys are all over 550 MPa, and the elongations over 17%. The Young’s modulus of Ti-Ta alloys ranges from 66 to 75 GPa, which are closer to the modulus of human bone as compared with that of Ti-6Al-4V alloy. The maximal shape memory strain of 3.32% was obtained in Ti-55wt. %Ta alloy quenched at 1273 K followed by aging at 723 K for 10min. The obtained results will be beneficial for developing Ti-Ta alloys for biomedical applications.

  Info
Periodical
Materials Science Forum (Volumes 610-613)
Main Theme
Edited by
Zhongwei Gu, Yafang Han, Fusheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
Pages
1382-1386
DOI
10.4028/www.scientific.net/MSF.610-613.1382
Citation
Y. Q. Ma, W. J. Jin, S. Y. Yang, J. B. Zhang, Y. X. Huang, X. J. Liu, "Microstructure and Shape Memory Properties of Biomedical Ti-(40-65) Ta (wt. %) Alloys", Materials Science Forum, Vols. 610-613, pp. 1382-1386, 2009
Online since
January 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Masahiko Ikeda, S. Komatsu, Yuichiro Nakamura, Y. Kobayashi
Abstract:Using Ti-40mass%Ta-0, -4, -8 and -12mass%Sn alloys, the effect of Sn addition on phase constitution in the solution treated and quenched...
1273
Authors: Zhen Tao Yu, Lian Zhou, Lijuan Luo, Maohong Fan, Yanyan Fu
Abstract:The effects of alloying elements such as Mo, Sn, Zr, Nb, deforming-rate, solid solution and aging treatment on mechanical property and...
595
Authors: Zhen Tao Yu, Gui Wang, Xi Qun Ma, Matthew S. Dargusch, Jian Ye Han, Sen Yu
Abstract:The effects of alloy chemistry and heat treatment on the microstructure and mechanical properties of Ti-Nb-Zr-Mo-Sn near  type titanium...
303
Authors: Yuichi Nakahira, Tomonari Inamura, Hiroyasu Kanetaka, Shuichi Miyazaki, Hideki Hosoda
Abstract:Effect of nitrogen (N) addition on mechanical properties of Ti-Cr-Sn alloy was investigated in this study. Ti-7mol%Cr-3mol%Sn was selected...
2126
Authors: Gang Wang, Wen Ru Zhao, Yan Dong Liu, Chun Yan Wang, Yan Dong Wang, Liang Zuo
Abstract:In recent years, there has been an increasing interest in magnetic shape memory alloys (MSMAs) due to their unique ability to produce very...
2188