[P] P101~P105 Biomedical and Health Care

[P103] Effect of Carbon on Microstructure and Mechanical Properties of
Biomedical Co-Cr-W-Pt Alloys

○Kosei Shimokawa¹, Kai Hiyama¹, Kyosuke Ueda², Takayuki Narushima² (1. Tohoku Univ. (m), 2. Tohoku Univ.)

Keywords:

Co-Cr alloy,carbon,platinum,precipitates,stacking fault energy

Co-25Cr-5W-10Pt-(0–2)C (mol%) alloys with varying C contents were fabricated, and their microstructures and mechanical properties were investigated. Redecing W content may suppress μ-phase formation. After cold rolling, strain-induced martensitic transformation was suppressed with increasing C content.