Modelling creep in nickel alloys in high temperature power plants

H.V. Atkinson and S.P.A. Gill,    University of Leicester, UK


The high temperature capability of nickel alloys makes them critical for power plant applications. Microstructural evolution in such alloys determines the long-term performance such as creep life. This chapter concentrates on modelling creep in solid solution-strengthened and precipitation-strengthened nickel alloys. Topics covered include empirical, semi-empirical, neural network and physics-based approaches. The latter are discused in some detail, focussing on dislocation kinetics, microstructural descriptors and influences, and the evolution of microstructure in relation to ageing and the accumulation ...

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