Co-Cr-Mo-based alloy and its manufacturing method for biological suppressed ion elution by the organization control

摘要

And provide a technique for detoxifying a biological toxicity such as allergic toxicity due to Ni trace impurities inevitably present in the Ni-free stainless steel alloy and biomedical Co-Cr-Mo-based alloy. To a method for detoxifying the biological toxicity due to Ni trace impurities in the Ni-free stainless steel alloy and biomedical Co-Cr-Mo-based alloy, the alloy composition, the Periodic Table of the Elements Group 4, Group 5, and to Group 13 element selected from the group consisting of elements belonging, Ni-free stainless steel and Biomedical Co-Cr-Mo alloy is characterized by adding an element selected from the group consisting of elements belonging to the periodic table group 4, in particular detoxification method of nickel toxicity of steel alloy. Preferably, more preferably those selected from the group consisting of zirconium and titanium, the additive element is zirconium.