Effects of Mo, W, Si on the Solid Particle Erosion Resistance of Austenitic Fe-12Cr-0.4C-5Mn-xMo/W/Si Alloys

Solid particle erosion (SPE), which implies the removal of material from component surfaces due to successive impacts of hard particles, has been recognized as a serious in various engineering applications such as hydrotransport lines, power plants and gas turbine blades. Recently, present authors confirmed that a strain-induced martensitic transformation (SIMT) improved abrasive, adhesive wear and cavitation erosion resistance in Fe-based alloys.. While the mechanism of SPE is different from that of abrasive, adhesive wear and cavitation erosion, it was considered that the SIMT may have a significant effect on improving the solid particle erosion resistance by absorbing the impact energy of particles. The present study is a part of a project in which SPE resistance improves by applying a SIMT; the effect of Mo, W, Si on the SPE resistance of austenitic Fe-12Cr-0.4C-5Mn-xMo/W/Si alloys was investigated in terms of the SIMT.