熱間静水圧プレス処理したTi-Fe合金の特性

概要

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Static tensile properties of as HIPed Ti-Fe alloys using Hunter process sponge fines or hydride-dehidride Kroll process sponge fines were studied, and metallographic and fractographic observations were also carried out by the back scattered electron image and scanning electron microscope.<BR>Despite the low level of oxygen content, the HIPed Ti-4 Fe specimen using Hunter Process sponge fines as titanium source showed poorer ductility than the HIPed Ti-4 Fe specimen using hydride-dehydride Kroll process sponge fines of high oxygen content as titanium source, and brittle fracture appearance was observed in a part of the specimen using Hunter process sponge fines.<BR>All of the HIPed Ti-(2, 3, 4, 5) Fe specimens using hydride-dehydride Kroll process sponge fines showed the dimple pattern on the fracture surfaces after the tensile test.