DEPENDENCE OF MECHANICAL PROPERTIES OF POWDER MATERIALS FROM COMPOSITIONS IRON - SELF-FLUXING ALLOYSFROM THE METHOD OF THEIR OBTAINING

Abstract

Studies of the mechanical properties of powder composite materials based on iron alloyed with self-fluxing alloys obtained by different technologies: pressing powder mixtures, followed by sintering in hydrogen, sintering billets in vacuum, impregnation and hot stamping. Depending on the method of preparation and the content of self-fluxing alloys, the hardness of the materials varies from 48 to57 HRC, the flexural strength is from 1130 to 1350 MPa, and the tensile strength is from 550 to 660 MPa. The highest indicators are materials obtained by sintering in vacuum and impregnation.