Features of sintered materials deforming at cyclical loading

摘要

The features of deforming and destruction of fine pure powdered iron are investigated in the range of porosity P=0-30 %. The monotonic decrease of fatigue endurance is established at increase P. The dependence of limiting intensities of deformations from P has nonmonotonous relation with a maximum approximately at 13 % of porosity. The dependence of fatigue properties upon P is corresponded to changes in porous structure.