Hardening of Steels with Boron Coatings Obtained under Self-Propagating High Temperature




Abstract: The gas transportation SHS-technology for the production of protective coatings made of borides alloyed with titanium and chromium on steel is considered. The results of studies of their structure and properties are shown. Methods of mathematical modeling have been developed, optimal compositions of SHS mixtures have been developed for applying wearresistant coatings to machine parts in self-propagating high-temperature synthesis. The results of testing steel specimens for wear under friction conditions on a friction machine SMT-1 indicate a significant increase in wear resistance of the treated samples. When tested in sliding friction, titanium coatings doped with boron (their strength is 6-6 times higher than in uncoated samples), the wear resistance of titanium coated coatings is 1.8-2.1 times higher in comparison with control samples.

Authors: Borys Sereda and Dmytro Sereda

Keywords: chemical gas-transport reactions, self-propagating high temperature synthesis, boron coverings, wear resistance

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Page Count

4 pages


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