Abstract
High-temperature strength characteristics of rolled sheet, welded joints, and weld metal of niobium alloy 5VMTs of the system Nb-W-Mo-Zr at 1520–2020 K and stresses comprising 0.4–1.0 of the material ultimate strength are given. It is shown that welded joints and cast weld metal under high-temperature prolonged loading conditions are the same as the basic metal, and in a number of cases they surpass it in high-temperature strength characteristics. Empirical dependences are obtained connecting the short-term material strength with its creep resistance characteristics and stress-rupture strength at temperatures above the start of dynamic recrystallization.
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Translated from Problemy Prochnosti, No. 12, pp. 24–32, December, 1993.
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Borisenko, V.A., Bukhanovskii, V.V. & Kharchenko, V.K. Creep and stress-rupture strength of rolled sheet and welded joints of niobium alloy of the system Nb-W-Mo-Zr at high temperatures. Strength Mater 25, 875–882 (1993). https://doi.org/10.1007/BF00774633
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DOI: https://doi.org/10.1007/BF00774633