Structure and Construction Assessment of the Surface Layer of Hardfaced Coating after Friction
1
Lublin University of Technology,
Electrical Engineering and Computer Science Faculty,
Institute of Computer Science,
36B Nadbystrzycka Street, 20-618 Lublin, Poland
2
Lublin University of Technology,
Fundamentals of Technology Faculty, Department of Fundamental of Technology,
38 Nadbystrzycka Street, 20-618 Lublin, Poland
3
Department of Production Engineering, Mechanical Engineering Faculty, Lublin University of Technology, 36 Nadbystrzycka Street, 20-618 Lublin, Poland
Publication date: 2017-09-03
Corresponding author
Jerzy Józwik
Department of Production Engineering, Mechanical Engineering Faculty, Lublin University of Technology, 38d Nadbystrzycka Street, 20-618 Lublin, Poland
Department of Production Engineering, Mechanical Engineering Faculty, Lublin University of Technology, 38d Nadbystrzycka Street, 20-618 Lublin, Poland
Adv. Sci. Technol. Res. J. 2017; 11(3):253-260
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ABSTRACT
The paper presents an analysis of the surface layer of Fe-Mn-C-B-Si-Ni-Cr alloy coating after friction with C45 steel. The coatings were obtained by arc welding (GMA). Flux-cored wires were used as a welding material. The flux-cored wires had a diameter of 2,4 mm. The tribological assessment was performed with the Amsler tribotester under dry friction conditions at unit pressures 10 MPa. The use of XPS spectroscopy allowed deep profile analysis of the surface layer. Based on the obtained results developed model of the surface layer for friction couple, hardfaced coating obtained from Fe-Mn-C-B-Si-Ni-Cr alloy – C45 steel. It was observed that the operational surface layer (OSL) of hardfaced coatings contained oxides (B2O3, SiO2, NiO, Cr2O3, FeO, Fe3O4, Fe2O3), carbides (Fe3C, Cr7C3) and borides (FeB, Fe2B).
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