Anelastic spectroscopy in a Ti alloy used as biomaterial

被引：20

作者：

Almeida, L. H. ^{[1
]}

Grandini, C. R. ^{[1
]}

Caram, R. ^{[2
]}

机构：

[1] UNESP, Grp Relaxacoes Anelast, BR-17033360 Bauru, SP, Brazil

[2] Univ Estadual Campinas, Dept Mat Engn, BR-13083970 Campinas, SP, Brazil

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 521-22卷

基金：

巴西圣保罗研究基金会;

关键词：

Anelasticity; Ti alloys; Snoek effect; Interstitials; Biomaterials; OXYGEN-OXYGEN INTERACTION; INTERNAL-FRICTION; SNOEK RELAXATION; INTERSTITIAL ATOMS; NIOBIUM; NITROGEN;

D O I：

10.1016/j.msea.2008.09.123

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ti and its alloys have been used thoroughly in the production of prostheses and dental implants due to their properties, such as high corrosion resistance, low elasticity modulus and high mechanical strength/density relation. Among the Ti-based alloys, the Ti-35Nb-7Zr-5Ta (TNZT) is one that presents the smallest elasticity modulus, making it an excellent alternative to be used as a biomaterial. In this paper, mechanical spectroscopy measurements were made in TNZT alloys containing several quantities of oxygen and nitrogen in solid solution. Mechanical spectroscopy measurements were made by using a torsion pendulum, operating at an oscillation frequency in the interval 4-30 Hz, temperature in the range 100-700 K, heating rate of about 1 K/min and vacuum lower than 10(-5) Torr. Complex relaxation structures and a reduction in the elasticity modulus were observed for the heat-treated and doped samples. The observed peaks were associated with the interactions of interstitial atoms and the alloy elements. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：59 / 62

页数：4

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