| Title |
Research Effect of Strain-Induced Phase Transformation on the Sliding Wear of the Fe-l7Mn Alloy |
| Authors |
이종은(Jong Eun Lee); 김용석(Yong Suk Kim) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
Fe-17Mn alloy; γ(FCC); ε(HCP); α`(BCC) phases; Strain-Induced Phase transformation; Sliding wear |
| 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. |