Phase transformation and mechanical properties of TLM titanium alloy for orthopaedic implant application

被引：0
|
作者：
Ma, Xiqun [1 ]
Han, Yong [2 ]
Yu, Zhentao [1 ]
Sun, Qiaoyan [2 ]
Niu, Jinlong [1 ]
Yuan, Sibo [1 ]
机构：
[1] Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China
[2] State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
来源：
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2012年 / 41卷 / 09期
关键词：
Martensite - Mechanical properties - Metastable phases - Phase transitions;
D O I：
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摘要：
Phase transformation and mechanical properties of TLM titanium alloy for orthopaedic implant application were studied. The results show that a small amount of slender α″ phase exists in the β matrix after solution treating and water quenching. The formation of α phase goes through two procedures during the aging treatment from 300°C to 500°C, one is β&rarrω&rarrα, and the other is α″&rarrα. While the micrographs reveal that α″ martensite hinder the nucleation and growth of metastable ω phase. The effect of the phase structures on reducing the elastic modulus is in the order of ω>α″>α, and the effect on improving the strength is in the order of ω>α>α″, and vice versa for improving the elongation of TLM alloy. Copyright © 2012, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.
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页码：1535 / 1538
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