The Influence of Microstructure of Arc Sprayed Coatings on Wear Resistance
| 1 | Lublin University of Technology, Nadbystrzycka 38, 20-618 Lublin, Poland |
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Publication date: 2018-03-01
Adv. Sci. Technol. Res. J. 2018; 12(1):285–292
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ABSTRACT
The paper presents the test results of microstructure and resistance to abrasion and erosive wear of single and double-layer coatings with arc-coated powder wires on the iron matrix. It was shown that adhesion of coatings is in the range of 14.39 – 24.72 MPa. The closed porosity of the coatings determined from SEM images is in the range of 0.69 – 2.45% and was significantly lower than the porosity determined from the images obtained from the optical microscope, which was 5.49 – 8.11%. The 95 MXC coating’s hardness of the matrix was about 100HV0.05 higher compared to the AMI 100 coating matrix. The intensity of the erosion of AMI 100 coatings was lower than the intensity of the erosion of 95 MXC coatings.
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