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Information × Registration Number 0210U001427, 0107U000036 , R & D reports Title Development complex powdered microligatures on base AEM, REM and rare metal for control macro- and microscructure, physico-chemical, mechanical characteristic steel of impotent purpose popup.stage_title Head Trotsan A.I., Доктор технічних наук Registration Date 12-02-2010 Organization I.N.Frantsevich Institute for Probmens of Materials Sciences Ukrainian Academy of Science popup.description2 The mechanism of microalloying action V, Ti, Nb, Ca, B and their optimum contents in steel with dispersion hardening carbo-nitrides, at which uprating of structure and mechanical properties are defined. On the basis of principles adsorption cooperation and competition V, Ti, Nb, Ca, B and impurity elements new composition of the microalloys, containing calcium, boron, rare-earth metals and carbo-nitride formative elements are designed and patented. Classification and principles of the determination optimum compositions of slag with expanded on 30-40 % degree of desulfurization steel and calcium-boron-rare-earth metals containing microalloys heightened the efficiency is developed. Treatment liquid melt complex microalloy greatly to reduce pollution steel become corrosion-active nonmetallics and modify them in fines-dispersed oxysulphides cerium is installed. The assembly-line technology of the refining, modificating and microalloying steel new compositions slages and microalloys, which provides: increasing KCV in 1,7 - 2,2 times; the reduction critical brittleness temperature on 22 - 29 0С; increase the percent elongation in 1,2 - 1,3 times; increasing tensile and yield strength on 5 - 10%; the decrease pollution corrosion-active nonmetallics with 6,8 - 11,2 to 1,4 - 1,9 inclusion on millimeter square; the reduction sort out metal according to surrface defects with 2,2 - 4,9% to 1,3 - 2,4 % is offered. Product Description popup.authors Бєлов Б.Ф. Бродецький І.Л. Живченко В.С. Крейденко Ф.С. Чичкарьов Є.А. popup.nrat_date 2020-04-02 Close