Investigation of the structure and microhardness of Mo-Fe-C coatings obtained by the electron beam injected in the atmosphere
Daria MulNovosibirsk State Technical University, 20, Karla Marksa ave., Novosibirsk, 630073, RussiaSvetlana N. SorokovaTomsk Polytechnic University, 30, Lenina ave., Tomsk, 634050, RussiaNikita V. MartyushevTomsk Polytechnic University, 30, Lenina ave., Tomsk, 634050, RussiaN. S. BelousovaNovosibirsk State Technical University, 20, Karla Marksa ave., Novosibirsk, 630073, RussiaV. G. BurovNovosibirsk State Technical University, 20, Karla Marksa ave., Novosibirsk, 630073, RussiaM C KorolevaNovosibirsk State Technical University, 20, Karla Marksa ave., Novosibirsk, 630073, Russia
2016en
ABI
Аннотация
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.
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