Microstructure and mechanical behavior of Ti25Nb25Zr alloy prepared from pre-alloyed and hydride-mixed elemental powders

Bhupendra Sharma, Sanjay Kumar Vajpai, Mie Kawabata, Takayoshi Nakano, Kei Ameyama

研究成果: Contribution to journalArticle査読

抄録

A study has been undertaken on the feasibility of the powder-metallurgy manufacturing process to fabricate β-type Ti25Nb25Zr alloy (mass%) for biomedical applications. The Ti25Nb25Zr alloy was fabricated from a mixture of TiH2 with constituent elemental powders, and from a pre-alloyed Plasma Rotating Electrode Processed (PREP) Ti25Nb25Zr powder, separately. It is shown that different processing methods led to different microstructures and mechanical properties. The Ti25Nb25Zr compact prepared by pre-alloyed powder exhibits poor strength whereas TiH2 processed Ti25Nb25Zr compact exhibits comparatively ultra-fine grained microstructure with significantly improved strength. The proposed fabrication method may have several opportunities to fabricate metallic alloys with enhanced mechanical properties.

本文言語英語
ページ(範囲)562-566
ページ数5
ジャーナルMaterials Transactions
61
4
DOI
出版ステータス出版済み - 2020
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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