Abstract |
Phases of the Fe-Mn alloy vary depending on Mn content of the alloy. Plastic deformation is also known to alter the phase content of the alloy. The ε (HCP) and γ (FCC) phases of the Fe-17Mn alloy are known to transform to the α` phase with deformation, which has a BCC structure. The current research aims to investigate the effect of the strain-induced transformation on the sliding wear of the Fe-17Mn alloy. Wear tests of the alloy were carried out using a pin-on-disk wear tester at various loads (0.5 N-100 N) under a constant sliding speed condition of 0.38 m/s against a glass (83% SiO2) bead. Worn surfaces and wear debris of the alloy were examined using an SEM and XRD. During the wear, at the wearing surface, the ε and γ phases of the alloy transformed into the α` phase by the deformation at applied loads exceeding a critical value. The transformation was found to accelerate the wear of the Fe-17Mn alloy to result in a higher wear rate. |
|
|
Key Words |
Fe-17Mn alloy, γ(FCC), ε(HCP), α`(BCC) phases, Strain-Induced Phase transformation, Sliding wear |
|
|
|
|