Relationship between various deformation-induced products and mechanical properties in metastable Ti-30Zr-Mo alloys for biomedical applications

Xiaoli Zhao, Mitsuo Niinomi, Masaaki Nakai

研究成果: Article査読

36 被引用数 (Scopus)

抄録

Nowadays, there is a significant research focus on the development of bio-implant materials that have not only a low Young's modulus but also other unique characteristics such as a changeable Young's modulus and the ability to prevent calcium phosphate formation. Taking advantage of deformation-induced phases is an effective way to obtain the changeable Young's modulus. This study investigated the relationship between the various deformation-induced products and the mechanical properties-including Young's modulus, microstructure, and tensile properties-of Ti-30Zr-(5,6,7)mass%Mo alloys subjected to solution treatment (ST) and cold-rolling (CR). After ST, each alloy is composed of a β phase and a small amount of athermally formed ω phase, and exhibits a low Young's modulus. During CR, deformation-induced phase transformation occurs in all the alloys. The change in Young's modulus due to CR is highly dependent on the types of deformation-induced products. The decrease in Young's modulus due to CR is related to the deformation-induced α ' phase transformation accompanying with the disappearance of athermal ω phase, and the increase in Young's modulus is attributed to the deformation-induced ω phase, which mainly exists in {332} β mechanical twins.

本文言語English
ページ(範囲)2009-2016
ページ数8
ジャーナルJournal of the Mechanical Behavior of Biomedical Materials
4
8
DOI
出版ステータスPublished - 2011 11月

ASJC Scopus subject areas

  • 生体材料
  • 生体医工学
  • 材料力学

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