Effect of Aging Temperature on Microstructure and Mechanical Properties of Ti-Nb-Ta-Zr-Fe Alloy for Biomedical Applications

被引：0
作者：
Xu, Y. F. [1 ,2 ]
Yi, D. Q. [1 ,3 ]
Liu, H. Q. [1 ,2 ,3 ]
Wang, B. [1 ,3 ]
Yang, F. L. [1 ,3 ]
机构：
[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China
[2] Xiangtan Univ, Key Lab Mat Design & Preparat Technol Hunan Prov, Xiangtan 411105, Peoples R China
[3] Cent S Univ, Key Lab Nonferrous Mat, Minist Educ, Changsha 410083, Hunan, Peoples R China
来源：
TI-2011: PROCEEDINGS OF THE 12TH WORLD CONFERENCE ON TITANIUM, VOL III | 2012年
关键词：
Microstructure; mechanical property; aging; omega phase; biomaterial; OMEGA-PHASE; YOUNGS MODULUS; TI-29NB-13TA-4.6ZR; TRANSFORMATIONS; ALPHA''; MARTENSITE; BEHAVIOR;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of aging temperature on microstructure and mechanical properties of Ti-25Nb-10Ta-1Zr-0.2Fe alloy was investigated. The results showed that the solution treated sample possesses good plasticity behavior. The deformation mechanism of the solution treated sample during tensile process is stress induced martensite transformation from beta phase to alpha" phase. An increase in yield strength as well as a great decrease in plasticity is observed in the alloy after aging treatments owing to the precipitates forming barriers against dislocation slip. The precipitation of omega phase in (3 phase at relatively lower aging temperature between 150-400 degrees C leads to low strength-to-modulus ratio and low elongation, whereas the precipitation of a phase at relatively higher aging temperature of 550 degrees C results in high strength, low Young's modulus and moderate elongation.
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页码：2126 / 2129
页数：4
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