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HIGH STRAIN FATIGUE OF A TYPE 316 STAINLESS STEEL
Author(s) -
PLUMBRIDGE W. J.,
DALSKI M. E.,
CASTLE P. J.
Publication year - 1980
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.1460-2695.1980.tb01112.x
Subject(s) - materials science , low cycle fatigue , dynamic strain aging , ductility (earth science) , creep , metallurgy , hardening (computing) , strain hardening exponent , work hardening , strain (injury) , fatigue testing , plasticity , work (physics) , composite material , alloy , microstructure , engineering , medicine , mechanical engineering , layer (electronics)
— High strain fatigue tests of Type 316 stainless steel have been carried out at room temperature and 600°C. Cold work reduces the life relative to the annealed condition when considered in terms of plastic strain per cycle but not when the total strain range is used. It also renders the material far more resistant to cyclically induced changes in strength than the annealed state in which the strength is more than doubled at 600°C. Strain ageing causes further instability and enhances the hardening and loss of ductility in the annealed material. Because of the large number of variables involved, comparison with other work is unable to identify the parameters most influential in determining endurance. It is argued that where a fatigue–creep interaction occurs, then cyclic hardening will promote a higher creep resistance in a sequential interaction and favour a fatigue dominated failure in a simultaneous interaction.