COMPARATIVE FRACTOGRAPHIC ANALYSIS OF FATIGUE FAILURE OF STEEL AISI 304 AND MULTILAYER STEEL MATERIAL AISI 304+AISI 430 AFTER PURE BENDING
In consequence of comparative fractographic analysis of fatigue fracture it was shown that gradual distribution of fatigue grooves along the layers in multilayer steel materials causes longer accumulation of damage. This, in turn, leads to significant increase in fatigue life subject to decrease in thickness of an individual layer of laminar structure.