Theoretical study of the effects of alloying elements on the strength and modulus of beta-type bio-titanium alloys

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	Theoretical study of the effects of alloying elements on the strength and modulus of beta-type bio-titanium alloys
	Y. Song; D. S. Xu; R. Yang; D. Li; W. T. Wu; Z. X. Guo
	1999
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	260 期号:1-2 页码:269-274
摘要	Titanium alloys are favorable implant materials for orthopedic applications, due to their desirable mechanical properties and biochemical compatibility (or bio-inertness). However, current bio-titanium alloys still possess too high an elastic modulus compared with that of the bone, which can lead to premature failure of the implant. Here, a theoretical methodology for the design and development of low modulus Ti alloys and/or structures is provided by means of electronic structural calculations using the discrete variational cluster method (DVM). The preliminary study concentrated on two beta-Ti atomic clusters consisting of 15, and 27 atoms, respectively. The binding energies between titanium and various alloying atoms within the clusters were first calculated, from which strength and modulus were then estimated. The results of the calculation suggested that Nb, Mo, Zr and Ta were suitable alloying elements for beta-type titanium alloys, capable of enhancing the strength and reducing the modulus of the materials. (C) 1999 Elsevier Science S.A. All rights reserved.
部门归属	univ london queen mary & westfield coll, dept mat, irc biomat, london e1 4ns, england. chinese acad sci, inst met res, shenyang 110015, peoples r china. chinese acad sci, inst corros & protect met, state key lab corros & protect, shenyang 110015, peoples r china.;guo, zx (reprint author), univ london queen mary & westfield coll, dept mat, irc biomat, mile end rd, london e1 4ns, england
关键词	Electronic Simulation Alloy Design Titanium Strength Modulus Biomaterial Site Occupancy
URL	查看原文
WOS记录号	WOS:000078685900029
引用统计	被引频次：252[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/321006/37486
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Song,D. S. Xu,R. Yang,et al. Theoretical study of the effects of alloying elements on the strength and modulus of beta-type bio-titanium alloys[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,1999,260(1-2):269-274.
APA	Y. Song,D. S. Xu,R. Yang,D. Li,W. T. Wu,&Z. X. Guo.(1999).Theoretical study of the effects of alloying elements on the strength and modulus of beta-type bio-titanium alloys.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,260(1-2),269-274.
MLA	Y. Song,et al."Theoretical study of the effects of alloying elements on the strength and modulus of beta-type bio-titanium alloys".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 260.1-2(1999):269-274.