Abstract:The effect of prealloying MnS up to 1.0 wt pct on the microstructural features of nonmetallic inclusions and their impacts on tensile and fatigue properties of 7.0 g/cm 3 powder metal (P/M) steel (Fe-2.0Cu-0.7C) have been investigated. As the MnS content increases, larger, more irregular, and more closely spaced inclusions are obtained. While no significant impact on both static and dynamic properties was observed when prealloying up to 0.65 wt pct MnS, a decrease of more than 15 pct of the ultimate tensile st… Show more
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