Multiphase deformation of Fe-Cr-C alloy subjected to erosion at elevated temperature

Microstructure SEM examinations and residual stress measurements of macro- and micro- types were performed using XRD method for ferrite and M23C6 carb ode i.e. phases comprising the microstructure of the Fe-Cr-C alloy subjecte d wear erosive test at impingement angles ranging from 15 to 60 degrees. Ma ximum macro- residual stresses was stated at 35-40 degrees impingement angl es where also the maximum of the mass loss appeared. Cracking and bending o f the carbide agglomerates were observed in the microstructure of surface l ayers of material subjected erosion. Diminishing of macro-residual stresses at high impingement angles was accompanied by the rise of layer thickness within refined carbides were mixed with ferrite. Formerly strong axial text ure of carbides was destroyed during erosion process while the texture of f errite was close to random.