Effects of Si concentrations on microstructure and mechanical properties of as-cast Co-Cr-Mo alloys

P. Tunthawiroon, A. Chiba

Research output: Contribution to journalConference article

Abstract

This research investigates the effects of different Si concentrations on the microstructure and mechanical properties of Co-Cr-Mo-xSi alloys. The Si concentration (x) was 0.1, 0.5, 1.0, 3.0 and 5.0 wt%. The mechanical properties of the experimental heat-treated Co-Cr-Mo-xSi alloys was determined by hardness and tensile tests. The microstructure was analyzed using SEM. The microstructure analysis revealed that Si concentration played a role in the formation of the intermetallic phase of Co-Cr-Mo-xSi alloys. The presence of the intermetallic phase significantly decreased the ductility of the experimental alloys. However, the hardness was improved and was increased directly proportional to the fraction of the intermetallic phase precipitating in the Co-Cr-Mo-xSi alloys.

Original languageEnglish
Article number012006
JournalIOP Conference Series: Materials Science and Engineering
Volume635
Issue number1
DOIs
Publication statusPublished - 2019 Oct 28
Event2019 10th International Conference on Mechatronics and Manufacturing, ICMM 2019 - Bangkok, Thailand
Duration: 2019 Jan 212019 Jan 23

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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