Investigations on the changed intensity shot peening specimens machined from SS304: process characterization, fatigue modeling, and failure analyses

Characterization on the surface morphology, residual stress relaxation, and fatigue life prediction of changed intensity shot peening specimens machined from SS304 were carried out. The present work aims, first foremost, to model performance in extra-low-, low-, high-cycle regime by clarifying relaxation component with total failure life, thereby successfully evaluating un-/0.1 mmA-/0.25 mmA-/0.4 mmA-peened components satisfactory results whole cycle regime. It is, therefore, essential provide a precise definition master diagram purpose service linear interpolation intensities considering engineering applicability. Additionally, characterization multiple-fatigue crack initiation was also identified fractography analysis, which reasonably illustrated non-conservative