抄録
Titanium and its alloys have a high yield strength, a high specific strength, good physical properties favorable for cryogenic structural materials. Comparisons of their properties with those of ferrous alloys are made and titanium materials standards for low temperature use are collected in order to characterize the current cryogenic appplication of the titanium materials. Tensile, Charpy impact, fracture toughness and fatigue properties are reviewed in reference to the effects of alloy type, test temperature, impurity level, and heat treatment.
