Ti-6Al-4V合金の線材から試験片を切り出す部位と疲労破壊および耐食性との関係

抄録

This study examined the effects of changing the sampling sites of Ti-6Al-4V alloy manufactured by the wire drawing method on the hardness, elastic modulus, fatigue fracture, corrosion resistance, and observed structure of the alloy. The following results were obtained.
It was clarified that the hardness, elastic modulus, fatigue fracture, corrosion resistance, and structure of Ti-6Al-4V alloy manufactured by the wire drawing method were influenced by the sampling site. The test pieces parallel with the drawing direction were significantly inferior to those perpendicular to the drawing direction. It was thought that the extended α-phase in the drawing direction had an influence on this phenomenon. The material used to produce biomaterials should have uniformly excellent corrosion resistance and mechanical properties at all positions of the material.