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Исследовано влияние способов литья и геометрических параметров деталей из хромистых чугунов на твердость их внутренних слоев. Разработана методика исследований и проведены эксперименты. Определено соответствие деталей из хромистых чугунов техническим требованиям по твердости. Проведен микроструктурный анализ по сечению деталей. Influence of ways of casting and influence of geometrical parameters of details made from chromic cast irons on hardness of their inner layers are investigated. The technique of researches is developed and experiments are made. Compliance of details from chromic cast irons to performance specification by hardness is determined. The microstructure analysis on the section of details is carried out.

STRUCTURE AND HARDNESS OF CASTINGS MADE FROM WEAR-RESISTANT CAST IRON