The effect of electromechanical treatment on structure and properties of plasma sprayed Fe-6W-5Mo-4Cr-2V-C coating
| Autor: | S. N. Parshev, A. A. Radyuk, V. P. Bagmutov, I. N. Zakharov, A. Yu. Ivannikov, D. I. Komlev, V. I. Kalita |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Carbon steel 02 engineering and technology Surfaces and Interfaces General Chemistry Substrate (electronics) engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Indentation hardness Surfaces Coatings and Films Wear resistance 020303 mechanical engineering & transports 0203 mechanical engineering Coating Plasma sprayed Materials Chemistry engineering Composite material 0210 nano-technology Current density High-speed steel |
| Zdroj: | Surface and Coatings Technology. 335:327-333 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2017.12.051 |
| Popis: | The principal aim of this study was to evaluate the effect of electromechanical treatment (EMT) on structure and properties of air plasma sprayed coatings from Fe-6W-5Mo-4Cr-2V-C high speed steel (HSS). The coating was air plasma sprayed on a substrate of low carbon steel, then it was finished using the EMT with different values of current density and processing speed. The results of microstructural studies showed fundamental changes of the treated by the EMT plasma sprayed coating with formation of nanostructured crystalline phases. As a consequence of the coating thus formed, the number of pores in the coating structure reduced > 2 times, the surface microhardness increased > 2 times, and the wear resistance of treated by the EMT coatings improved > 6 times. The obtained results revealed the high potential of the EMT for post-processing of the plasma sprayed coatings. |
| Databáze: | OpenAIRE |
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