Abstract
The results of investigating the structural state and the variation in mechanical characteristics during the static and cyclic loading of deformed welded joints of the 40KKhNM alloy are presented. It is shown that quenching eliminates structural-and-mechanical nonuniformity. The formation of ɛ martensite can introduce an essential contribution to alloy hardening because of the development of the γ → ɛ transformation during tensile static deformation. It is established that the fatigue characteristics vary insignificantly depending on the degree of preliminary deformation. Production modes that provide the maximal fatigue strength with a minimal accumulation intensity of cyclic damages of welded joints are determined.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call