Description of the hot tensile and creep behaviourof Alloy 800H, a carbide precipitation strengthened hightemperature alloy. Application of the one internal variablemodel by Kocks, Meckin~g and Estrin. Extension of the modelby incorporating an expression for a mean free path of mobiledislocations depending on the kinetics of the precipitation andripening process of the carbides, Evaluation of microscopy andmechanical data for three heats of Alloy 800H at 900"C.Comparison between calculations using the extended model and experimental data.
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