Iranian Journal of Materials Science and Engineering

• Optimal Composition for Sintering Density: The 88W-10Ni-2Mn alloy achieved the highest sintering density of 90.11%, despite chemical composition changes having minimal impact on sintering density overall.
• Impact of Carburization on Hardness: Carburization during sintering significantly increased micro-hardness, with the 90W-6Ni-4Mn alloy exhibiting the highest hardness of 381 Hv due to a low nickel-to-manganese ratio.
• Fracture Behavior Insights: The 90W-6Ni-4Mn alloy showed the most desirable trans-granular fracture mode, including cleavage and matrix tearing, highlighting the influence of the matrix phase and nickel-to-manganese ratio on crack propagation.