Grain refining technique and mechanical properties of the biomedical Co-Cr-Mo alloy

Shingo Kurosu, Yunping Li, Hiroaki Matsumoto, Akihiko Chiba

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Thermomechanical processes combined with reverse transformation from (ε-hcp and M2N) dual-phase to γ-fcc phase of biomedical Co-Cr-Mo-N alloys were examined. According to XRD analysis, the reverse transformation from ε + M2N to γ is completed after heat treating at 1223 to 1373 K without deformation, while after heat treating at 1223 and 1273 K contained residual M2N particles in the γ matrix. After the subsequent hot compression at condition at 1273 K and strain rate less than 1 s-1, and 1223 K and strain rate less than 10 s -1, ultra fine grains less than 1 μm with residual M2NN were obtained. Therefore, it is suggested that the residual M2NN suppressed further growing of DRXed grain. The obtained microstructure with ultra fine grain dispersed with residual M2NN was obtained to demonstrate both grain refining strengthening and precipitation strengthening.

本文言語English
ホスト出版物のタイトルPRICM7
出版社Trans Tech Publications Ltd
ページ2184-2187
ページ数4
ISBN(印刷版)0878492550, 9780878492558
DOI
出版ステータスPublished - 2010
イベント7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7 - Cairns, QLD, Australia
継続期間: 2010 8 22010 8 6

出版物シリーズ

名前Materials Science Forum
654-656
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
国/地域Australia
CityCairns, QLD
Period10/8/210/8/6

ASJC Scopus subject areas

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

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