Bio-Co-Cr-Mo Alloy With Ion Elution Suppressed by Structure Control, And Process For Producing Same
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Issued Date -
Oct 16, 2008
app pub date -
Mar 28, 2005
filing date -
Nov 19, 2004
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Abandoned
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Abstract
This invention provides a technique for rendering bio-toxicity such as allergy toxicity derived from Ni trace impurity, i.e., nickel toxicity, which is unavoidably present in a bio-Co--Cr--Mo alloy or an Ni-free stainless steel alloy unharmful, characterized in that an element selected from the group consisting of the group 4, 5 and 13 elements of the periodic table, particularly an element selected from the group consisting of the group 4 elements of the periodic table, is added to the alloy composition. The additive element is preferably an element selected from the group consisting of zirconium and titanium, more preferably zirconium.
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