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CREEP LIFE OF AISI 316 STAINLESS STEEL SUBJECTED AT 550°C TO STEP CHANGES IN TENSILE LOAD
Author(s) -
Kelly D. A.,
Singh G.
Publication year - 1984
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1984.tb00361.x
Subject(s) - creep , cavitation , materials science , ultimate tensile strength , metallurgy , grain boundary , composite material , structural engineering , mechanics , microstructure , engineering , physics
— A phenomenological model of cumulative creep damage combining simulated grain boundary cavitation with internal redistribution of stress is developed and matched to constant load tensile creep data for an AISI 316 stainless steel tested at 550°C. The model is shown to predict the creep life of the material when it is subjected to single step changes in load provided the strain rates subsequent to the change are imposed in the model. It is inferred that this supports current suggestions that cavitation failure may be strain controlled.