Chemical reactions at high-speed HFC-boriding

Strengthening of machine parts and units, increased reliability and longer service life is an important task of modern industry. As promising materials for protective-strengthening coatings, matrix composites based on the ternary system Fe-B-FenB are offered. The article proposes the complex heating of steel being borated and imbued medium by high frequency currents (HFC). We also proposed to combine the diffusion boriding from liquid and solid media and the transition of the diffusion boriding to chemical interaction between the elements of Fe and B. We determined the main components of the reaction-boronizing system, as well as their roles and possible processes that lead to the implementation of topochemical boriding initiated by HFC-heating. We confirmed the course of the reaction leading to the occurrence of reducing agents Ca, Si and active boron in the boronizing mixture. (paper)