Solution treatment behavior of Co-Cr-Mo alloy

Journal of Biomedical Materials Research
A J Clemow, B L Daniell

Abstract

Current practice in the manufacture of Co-Cr-Mo alloy total hip prostheses is the use of a solution treatment to increase the ductility of the as-cast alloy. This study is concerned with the reactions encountered during solution treatment at temperatures between 1165-1270 degrees C. These reactions, including incipient melting, a carbide transformation from M23C6 to M6C and sigma-phase formation, have been examined using both qualitative and quantitative metallographic techniques, and are shown to influence the production of a single phase microstructure. As a result, an optimum temperature for solution treatment of 1220 degrees C has been determined. It is further proposed that a reduction in the carbon content of this alloy would improve its solution treatment behavior.

References

Jul 1, 1975·Journal of Biomedical Materials Research·P DucheyneJ C Mulier

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Citations

Nov 1, 1990·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·J J JacobsS J Veeck
Jan 26, 2016·Journal of the Mechanical Behavior of Biomedical Materials·Fuzeng RenKangjie Chu
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