Microstructure and mechanical properties of Hot-Pressed Co-Cr-Mo alloy compacts

Yoshimi Sato, Naoyuki Nomura, Shigeo Fujinuma, Akihiko Chiba

Research output: Contribution to journalConference articlepeer-review

8 Citations (Scopus)

Abstract

The microstructure and mechanical properties of compacts produced from hot-pressing the Co-29Cr-6Mo alloy powder, fabricated by gas atomization, were investigated in this study. The average diameter of the alloy powder is 41 μm. Electron probe micro analysis revealed that the concentration scattering of chromium and molybdenum is relatively small between the powders. The compact hot-pressed at 1273 K in Ar with an applied pressure of 80 MPa possesses the relative density of 97% and the fine grain (2.7 μm). The ultimate tensile strength of the compact is 1240 MPa, which is comparable to that of the forged Co-29Cr-6Mo alloy.

Original languageEnglish
Pages (from-to)769-772
Number of pages4
JournalAdvanced Materials Research
Volume24-25
DOIs
Publication statusPublished - 2007 Jan 1
EventPRICM 6: The 6th Pacific Rim International Conference on Advanced Materials and Processing - Jeju Island, Korea, Republic of
Duration: 2007 Nov 52007 Nov 9

Keywords

  • Cobalt-chromium-molybdenum alloy compact
  • Cobalt-chromium-molybdenum alloy powder
  • Gas atomization
  • Hot-pressing

ASJC Scopus subject areas

  • Engineering(all)

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