بررسي تاثير سيكل عمليات حرارتي و تركيب شيميايي بر استحكام گسيختگي عرضي و ريزساختار بهينه هاردمتال هاي WC-CO

Investijation into heat treatnent cycles and chemical composition an transverse rupture strength and microstructure

In this article , the effect of cobalt content and heat treatment on microstructure and mechanical properties of WC-Co hardmetals were studied. The cobalt content and the sintering temperatures varied from 6 to 14%Wt and 1350 to 1450°C , respectively. The specimens were characterized by using scanning electron microscopes as well as magnetic saturation test. Vickers and transverse rupture strength of specimens were also measured.