Low Young’s Modulus and High Strength Obtained in Ti-Nb-Zr-Cr Alloys by Optimizing Zr Content

Qiang Li, Chao Cheng, Junjie Li, Ke Zhang, Kai Zhou, Masaaki Nakai, Mitsuo Niinomi, Kenta Yamanaka, Daixiu Wei, Akihiko Chiba, Takayoshi Nakano

研究成果: Article査読

3 被引用数 (Scopus)

抄録

A series of Ti-29Nb-(4, 7, 10, 13)Zr-2Cr alloys were fabricated to investigate the influence of Zr content on microstructures and mechanical properties. All the four alloys present a single β phase after solution treatment. With the increase in Zr content, the 0.2% proof stress is gradually increased from 388 MPa in Ti-29Nb-4Zr-2Cr to 713 MPa in Ti-29Nb-13Zr-2Cr. The Young’s modulus gradually is decreased from 80 GPa in Ti-29Nb-4Zr-2Cr to 63 GPa in Ti-29Nb-13Zr-2Cr. The elongation shows the same trend as that of Young’s modulus. The changes of mechanical properties are influenced by the β stability and solid solution strengthening effect, which are both enhanced by Zr addition. The Ti-29Nb-13Zr-2Cr alloy presents a Young’s modulus of 63 GPa, tensile strength of 730 MPa and elongation of 18% and is a promising biomedical material.

本文言語English
ページ(範囲)2871-2878
ページ数8
ジャーナルJournal of Materials Engineering and Performance
29
5
DOI
出版ステータスPublished - 2020 5 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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