Sintered Fe-Ni-Cu-Sn-C Alloys Made of Ball-Milled Powders

Abstract

The main objective of this paper was to perform sinterability studies of ball-milled Fe-12%Ni-6.4%Cu-1.6%Sn-0.6%C powders. A mixture of precisely weighed amounts of elemental iron, nickel and graphite, and pre-alloyed 80/20 bronze powders was ball-milled for 8, 30 and 120 hours. After cold-pressing at 400 MPa the specimens were sintered at 900oC for 30 minutes in a reducing atmosphere and subsequently tested for density and hardness as well as subjected to structural studies using scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis.

Keywords

• sintered diamond tools
• matrix
• sintering
• microstructure