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Effect Of Carbon Addition On Microstructure And Properties Of Boron-Containing Steel Sintered Under Different Atmospheres, W Koetniyom, P Chantawet, N Tosangthum, M Morakotjinda, T Yotkaew, P Wila, R Tongsri
Effect Of Carbon Addition On Microstructure And Properties Of Boron-Containing Steel Sintered Under Different Atmospheres, W Koetniyom, P Chantawet, N Tosangthum, M Morakotjinda, T Yotkaew, P Wila, R Tongsri
Journal of Metals, Materials and Minerals
High performance sintered steels can be obtained by simultaneous tailoring microstructural feature and improving sintered density. Although sintered hardening is used to produce sintered components with microstructural features providing high tensile strength and hardness, but the performance is limited by low ductility due to the presence of porosity. Near full density can be achieved by liquid phase forming as a result of boron addition to a sintered steel. A liquid formed due to the eutectic reaction of Fe + Fe2B, spreads to interparticle spaces leading to densification improvement. Carbon is an indispensable element for high strength sintered steels. It plays …