Processing considerations for cast Ti-25Nb-3Mo-3Zr-2Sn biomedical alloys

被引：15

作者：

Bermingham, M. J. ^{[1
]}

McDonald, S. D.

Buddery, A. J.

StJohn, D. H. ^{[1
]}

Dargusch, M. S. ^{[1
]}

机构：

[1] Univ Queensland, Ctr Adv Mat Proc & Manufacture, Sch Mech & Min Engn, Brisbane, Qld, Australia

来源：

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2011年 / 31卷 / 07期

关键词：

Phase stability; Segregation; Solidification; Titanium alloys; Processing; GRAIN-GROWTH KINETICS; SOLUTE REDISTRIBUTION; TITANIUM-ALLOYS; ALPHA; PHASE; SOLIDIFICATION; DIFFUSION; BEHAVIOR;

D O I：

10.1016/j.msec.2011.06.011

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Metastable beta-Ti alloys are becoming attractive materials for structural biomedical applications due to the low modulus of elasticity that these alloys can offer. Stabilizing the beta-phase and suppressing the formation of other phases such as martensite through careful composition control and processing, are essential to achieving a low modulus. Traditional manufacturing processes such as investment casting may be a suitable production pathway for these new components but a concern is that the compositional fluctuations that occur during solidification may affect the stability of the beta-phase. This work characterises the segregation of solute in the Ti-25Nb-3Mo-3Zr-2Sn alloy and discusses the practical implications of this segregation in biomedical components produced via solidification routes. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1520 / 1525

页数：6

共 20 条

[1] General approach to phase stability and elastic properties of β-type Ti-alloys using electronic parameters [J].