|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Ultrafine Grained Materials IX
||Enhancement on Mechanical Biocompability of Co-Cr-Mo Alloys by High-pressure Torsion and a Short-time Solution Treatment
||Murat Isik, Mitsuo Ninomi, Huihong Liu, Masaaki Nakai, Ken Cho, Zenji Horita, Takayuki Narushima
|On-Site Speaker (Planned)
Co-Cr-Mo (CCM) alloys are used for biomedical applications such as artificial hip and knee joints because of their superior mechanical strength, wear resistance and biological inertness. However, failure may occur in the fabricated prosthesis using these alloys. Therefore, there is a scope for enhancement of their mechanical biocompability. Improvement of mechanical strength of CCM alloys can be achieved by means of controlling phase transformation and grain refinement through high-pressure torsion (HPT). However, HPT processing can cause decrease in elongation which is not desired in biomedical applications. A subsequent short-time solution treatment is possible to improve elongation of HPT processed CCM alloys. The aim of this study is to investigate the microstructures and mechanical properties of CCM alloys subjected to HPT and a subsequent short-time solution treatment.