Dislocation creep modelling of Sanicro 25 based on microstructural evolution and particle hardening mechanism

A dislocation model for predicting creep deformation and long-term life of Sanicro 25 austenitic steel was proposed on the basis of microstructural evolution and particle hardening mechanism. This approach was integrated by four sub-models of (i) time- and strain-induced detachment stress model, (ii) Orowan strengthening model of two precipitates, (iii) void nucleation and growth model, and (iv) temperature-induced strain energy model. The...