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Modelling creep in nickel alloys in high temperature power plants

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

Abstract:

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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