Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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PLASMA SURFACE HEAT TREATMENT HIGH-ALLOY STEELS ON REVERSE CURRENT POLARITY

Belinin D.S. 1 Schicin Y.D. 1
1 Perm national research polytechnic university
Technology investigated plasma surface tempering current reverse polarity products from high corrosion resistant steel 40X13 allows to obtain hardened layer depth of 0.5 mm to 2.5 mm does not require further machining and heat treatment. The work carried out comparative studies of the energy characteristics of the compressed arc calorimetry method at work on currents direct and reverse polarity. In this paper, the possibility of obtaining sufficiently deep hardened layers without melting surface structure melkodispesnoy martensitic type. The results of studies of the microstructure of the hardened layer , using optical microscopy and hardness distribution in the depth of the hardened layer. A mechanism of heat transfer in the product at a plasma surface heat treatment on current reverse polarity.