Improvement of the heat resistance of carbon steels by thermocycling thermochemical treatment with self-protective pastes based on boron carbide and aluminum

摘要

The positive effect after thermocycling thermochemical treatment on the structure and properties of formation of boroaluminized layer on steel 20 was established. The research results of metallographic analysis, x-ray spectrometry microanalysis and microhardness were given. The modes of thermocycling treatment (temperature, speed of heating and cooling) were carried out.