Influence of ageing on wear resistance of an Fe-Mn-Si-Cr-Ni-Ti-C shape memory alloy

摘要

To further improve the wear resistance of Fe-Mn-Si-Cr-Ni based shape memory alloys, the effects of ageing at 1123 K with and without pre-deformation at room temperature on the precipitation of second-phase particles and their effects on wear resistance were investigated in an Fe-Mn-Si-Cr-Ni-Ti-C alloy. Results showed that the solution treated Fe-Mn-Si-Cr-Ni-Ti-C alloy exhibited much better wear resistance than the solution treated AISI 321 stainless steel; ageing with pre-deformation improved the wear resistance of Fe-Mn-Si-Cr-Ni-Ti-C alloy more effectively than ageing without pre-deformation, especially under the heavy load condition.