Paper Title:
Decomposition of a Biocompatible Zr-Ta-Nb Alloy
  Abstract

A Zr-Ta-Nb alloy made of biocompatible alloy elements only and consisted of single β-phase with bcc structure was prepared by conventional solidification. Electron diffraction, transmission electron microscopy (TEM) and high-resolution electron microscopy (HREM) were used to examine microstructural evolutions of the β-Zr-Ta-Nb alloy subjected to different heat treatments. The results show that the metastable β-phase in the as-solidified Zr-Ta-Nb alloy turned to decompose when annealed at 400°C and this led to the formation of a highly strained structure containing nanosized precipitates and local disordered regions. Striking phase separation including the formation of the equilibrium α-phase was found to occur at 600°C. By means of nanosized electron-probe analysis of energy dispersive X-ray spectroscopy, the compositions for the nanosized phases formed due to different heat treatments were analysis.

  Info
Periodical
Materials Science Forum (Volumes 561-565)
Main Theme
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
1525-1528
DOI
10.4028/www.scientific.net/MSF.561-565.1525
Citation
W. Sun, "Decomposition of a Biocompatible Zr-Ta-Nb Alloy", Materials Science Forum, Vols. 561-565, pp. 1525-1528, 2007
Online since
October 2007
Authors
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: Guo Fa Mi, Cui Fen Dong, Chang Yun Li, Hai Yan Wang
Abstract:Cast, sub-rapidly solidified and rapidly solidified Al-5Fe alloy and Al-5Fe-3Y alloy were respectively prepared by vacuum melting, suction...
2462
Authors: Xiao Ping Luo, Lan Ting Xia, Ming Gang Zhang
Abstract:The effect of Cd and Sb addition on the microstructural and mechanical properties of as-cast AZ31 alloys was investigated and compared. The...
197
Authors: N.I. Vlasova, V.S. Gaviko, A.G. Popov, N.N. Shchegoleva, L.A. Stashkova, Dmitriy Gunderov, Xavier Sauvage
Abstract:Equiatomic FePd alloy in the ordered state has been processed by means of high-pressure torsion deformation (HPTD) and then annealed. X-ray...
392
Authors: Katarzyna Bałdys, Grzegorz Dercz, Łukasz Madej
Abstract:The ferromagnetic shape memory alloys (FSMA) are relatively the brand new smart materials group. The most interesting issue connected with...
171
Authors: Hong Wei Liu, Yon Gan Zhang, Jian Bo Zhang, Bao Hong Zhu, Feng Wang, Zhi Hui Li, Xi Wu Li, Bai Qing Xiong
Chapter 1: Materials Properties
Abstract:Microstructural characterization of Al-Cu-Mg-Ag alloy ageing at low and elevated temperature were investigated by differential scanning...
1225