Comparative study of the mechanical and tribological properties of a Hadfield and a Fermanal steel

In this study, Fe-12.50Mn-1.10C-1.70Cr-0.40Mo-0.40Si-0.50(max)P-0.50(max)S (Hadfield alloy) and Fe-28.4Mn-0.86C-1.63Al-0.42Cu-1.80Mo- .59Si-0.60W (Fermanal alloy) (Wt. %) in the aged condition were compared in terms of its tribological and microstructural properties. The x-ray diffraction (XRD) patterns were refined with the lines of the austenitic γ -phase, Chromium Iron Carbide (Cr2Fe14C), Iron Carbide (Fe2C), and Iron Oxide (Fe0.974O (II)) for the Hadfield alloy, and the lines of the austenitic γ - phase, martensite (M), Mn1.1Al0.9 phase and iron carbide (Fe7C3) for the Fermanal alloy. Mossbauer spectra were fit with two sites for the Hadfield alloy, which displayed as a broad ¨ singlet because of the austenitic disordered phase, and had a magnetic hyperfine field distribution, which corresponds to the Cr2Fe14C ferromagnetic carbides found by XRD. There were two paramagnetic sites, a singlet, which corresponds to the austenite disordered phase, and a doublet, which can be attributed to the Fe7C3 carbide. The obtained Rockwell C hardness for aged Hadfield and Fermanal alloys were 43.786 and 50.018 HRc, respectively

• Autores: Sánchez Sthepa, Héctor; Ramos, Jorge; Pérez Alcázar, German Antonio; Astudillo A., P. C.; Soriano G., A. F.; Barona Osorio, Gisselle Marcela; Durán, J. F.
• Tipo de recurso: Article of journal
• Fecha de publicación: 2017
• Institución: Universidad Autónoma de Occidente
• Repositorio: RED: Repositorio Educativo Digital UAO
• Idioma: eng
• OAI Identifier: oai:red.uao.edu.co:10614/11195
• Acceso en línea: http://hdl.handle.net/10614/11195; https://doi.org/10.1007/s10751-017-1422-x
• Palabra clave: Materiales - propiedades mecánicas; Material - mechanical properties; Hadfield steel; Fermanal steel; Mechanical properties; X-Ray diffraction
• Rights: openAccess
• License: Derechos Reservados - Universidad Autónoma de Occidente