Vestnik of Samara State Technical University. Technical Sciences SeriesVestnik of Samara State Technical University. Technical Sciences Series1991-85422712-8938Samara State Technical University2019910.14498/tech.2016.2.%uResearch ArticleResearch of niobium carbide coverings structure and characteristics on hard alloyed basesBelovAnatoliy N(Ph.D (Techn)), Associate Professor-Samara State Technical University1506201624218819210022020Copyright © 2016, Samara State Technical University2016The method of niobium carbide covering on hard-alloyed tool bases from a steam-gas phase is presented. The method, which have been used for investigations of niobium carbide coverings structure and characteristics, are briefly examined. The microphotographs of the covering surfaces with various enlargement as well as the photographs of the transverse grinds for coverings on the hard-alloyed base are introduced. The investigations results of steam-gas medium influence on micro hardness and a parameter of a covering grating are given as well as graphic dependence of micro hardness and the grating parameters on proportion of gas phase components.coveringniobium carbidehard-alloyed basetransverse grindcovering’s microstructureпокрытиекарбид ниобиятвердосплавная подложкапоперечный шлифмикроструктура покрытия[Белов А.Н. Исследование технологических показателей процесса обработки титановых сплавов твердосплавными резцами с покрытием NbC: автореферат дисс. … канд. техн. наук: 05.02.08 / Куйбышев: Куйбыш. политехн. ин-т, 1979. - 16 с.][Белов А.Н. Исследование характера износа инструмента с покрытием NbC // Актуальные проблемы автотранспортного комплекса: Межвуз. сб. науч. статей. - Самара: Самар. гос. техн. ун-т, 2015. - С. 3-10.]