Abstract
The purpose of this study is to investigate the reaction in gas boronizing of iron with BCl3 and H2. By microscopic examination of gas boronized iron and infrared spectroscopic analysis of the gaseous products during the boronizing reaction, it was observed that the formation of dichloroborane by hydrogenation of BCl3 according to the reaction
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was required to form the needle shape boride layer consisting of two layers on the surface of the iron.
