Designing spherical cementite in bainitic matrix (SCBM) microstructures in high carbon powder metal steels to improve dry sliding wear resistance

Spherical cementite particles in the bainitic matrix in high carbon steel processed by powder metallurgy (PM) method were produced and compared with separately sintered, fully bainitic and spherical cementite in the ferritic matrix microstructures for their microstructure-hardness-dry sliding wear properties. The primary cementite plus dense lamellar pearlite structures were achieved in the sintered specimens. The spherical cementites in the...