The use of refractory metals as high temperature structural materials has been limited in the past because of the rapid oxidation and low creep strength of the metals. Recently, a number of advances have been made in which alloying additions have improved these properties. This paper reviews these advances in the Cr-Ta and Nb-Si systems. Further needs for improvement are also described. [S0094-4289(00)01603-0]

Issue Section:
Technical Papers
Keywords:
chromium alloys, tantalum alloys, niobium alloys, silicon alloys, oxidation, creep, tensile strength, refractories, alloying additions
Topics:
Alloys, Creep, High temperature, Oxidation, Refractory metals, Temperature
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 by ASME
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