Microstructural evolution and mechanical properties of biomedical Co-Cr-Mo alloy subjected to high-pressure torsion

- The effects of high-pressure torsion on biomedical Co-Cr-Mo alloy were investigated.
- HPT processing causes γ→ε martensitic transformation in Co-Cr-Mo alloy.
- Grain refinement of Co-Cr-Mo alloy occurs into the nanometer level.
- Strength of Co-Cr-Mo alloy increases with the effect of high-pressure torsion.
- Hardness of Co-Cr-Mo alloy also increases with the effect of high-pressure torsion.