Influence of microstructure and porosity on tensile and Impact properties of High Performance PM steels

摘要

High performance PM steels may be produced by using low alloyed powders to preserve compressibility, adding a carbon content high enough to form bainitic microstructures after sintering and enhancing densification. In this paper the influence of green density and sintering temperature on tensile and impact properties of 0.6% C low alloyed Mo-Ni steels was studied. Properties obtained can fit technical requirements of many medium-high strength components.