Modeling of primary creep regeneration in engineering metallic alloys

Abstract This paper aims to model the primary creep regeneration (PCR) phenomenon, which is observed at variable loadings applied during the creep of engineering alloys such as 316H stainless steel, 10% Cr martensitic steel, nickel-based alloy, etc. Since PCR is a multifactorial problem, this research addresses a partial case: deriving relationships between the extent of PCR and the value of plastic strain occurring on reversal loading. Model results are compared with the PCR phenomenon for 316H stainless steel in uniaxial tension/compression for various plastic strains on reversal stresses at equal creep dwell times and zero durations of reversal stress actions.