Investigation of the structure and microhardness of Mo-Fe-C coatings obtained by the electron beam injected in the atmosphere
| Autor: | Daria Mul, N. V. Belousova, M. C. Koroleva, V. G. Burov, Nikita V. Martyushev, Svetlana N. Sorokova |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Carbon steel Scanning electron microscope 020502 materials 02 engineering and technology структуры сканирующая электронная микроскопия engineering.material Cladding (fiber optics) Indentation hardness электронные пучки эвтектики 020303 mechanical engineering & transports 0205 materials engineering 0203 mechanical engineering Coating Volume fraction engineering микротвердость Composite material покрытия Powder mixture углеродистые стали Eutectic system |
| Popis: | In this work 'Mo-Fe-C' coatings fabricated on medium carbon steel by non-vacuum electron beam cladding were investigated. The structure of coatings and transition zones were studied by scanning electron microscopy (SEM). It was shown that an increase of Fe percentage in the cladding mixture led to a decrease of the eutectic volume fraction in the coating and was accompanied by the formation of the gradient structure between the coating and a substrate material. Measurements of microhardness in the cross section of samples revealed that the cladding of a 'Mo-C powder mixture contributed to a 4.5-fold increase of microhardness. |
| Databáze: | OpenAIRE |
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