Effect of Nb on microstructural characteristics of Ti-Nb-Ta-Zr alloy for biomedical applications

IMR OpenIR

	Effect of Nb on microstructural characteristics of Ti-Nb-Ta-Zr alloy for biomedical applications
	S. J. Li; Y. L. Hao; R. Yang; Y. Y. Cui; M. Niinomi
	2002
发表期刊	Materials Transactions
ISSN	1345-9678
卷号	43 期号:12 页码:2964-2969
摘要	The effects of several commonly used heat treatment schemes on the microstructures of two Ti-Nb-Ta-Zr alloys aimed at biomedical applications were studied in this work using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The specimens were water quenched from 790degreesC and then aged at temperatures between 300degreesC and 600degreesC. The experimental results showed that alpha and omega phase precipitated from the metastable beta matrix in Ti-29Nb-13Ta-4.6Zr alloy during isothermal ageing. But for Ti-39Nb-13Ta-4.6Zr, the precipitation reaction was more sluggish than that in Ti-29Nb-13Ta-4.6Zr because of high amount of beta stabilizing elements in the former alloy. As a result the a phase was unable to precipitate during short time ageing treatment. After longer time (12 days) ageing treatment at 500degreesC or 400degreesC, recognizable a precipitates were observed in the aged samples. It is concluded that Ti-29Nb-13Ta-4.6Zr can be heat treated to obtain different microstructures and is better than Ti-39Nb-13Ta-4.6Zr in terms of age hardenability.
部门归属	chinese acad sci, inst met res, shenyang 110016, peoples r china. toyohashi univ technol, dept prod syst engn, toyohashi, aichi 4418580, japan.;li, sj (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
关键词	Titanium-niobium-tantalum-zirconium Alloy Biomaterial Microstructure Phase Transformation Omega Phase Transformation Titanium-alloys Cast-iron Strength Modulus Beta
URL	查看原文
WOS记录号	WOS:000180681300006
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36315
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. J. Li,Y. L. Hao,R. Yang,et al. Effect of Nb on microstructural characteristics of Ti-Nb-Ta-Zr alloy for biomedical applications[J]. Materials Transactions,2002,43(12):2964-2969.
APA	S. J. Li,Y. L. Hao,R. Yang,Y. Y. Cui,&M. Niinomi.(2002).Effect of Nb on microstructural characteristics of Ti-Nb-Ta-Zr alloy for biomedical applications.Materials Transactions,43(12),2964-2969.
MLA	S. J. Li,et al."Effect of Nb on microstructural characteristics of Ti-Nb-Ta-Zr alloy for biomedical applications".Materials Transactions 43.12(2002):2964-2969.