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Information × Registration Number 0221U102658, 0116U002969 , R & D reports Title Development of pulse technologies of production of highly wear-resistant dispersion-hardened metal matrix composite materials based on alloys of aluminum, titanium and iron popup.stage_title Head Sizonenko Olga M., Доктор технічних наук Registration Date 08-02-2021 Organization Institute of Impulse Processes and Technologies popup.description2  Object of studies – processes of phase and structure formation, which take place in Ti – C and Ti – Al – C systems during their high voltage electric discharge (HVED) treatment in kerosene as well as during their briquetting using spark plasma sintering (SPS) method. The goal of work – development of new technological approaches to the obtainment of dispersion-strengthened metal matrix composite materials, based on TiC – Al, TiC (TiB2) – iron-carbon alloy and TiC – Ti systems with increased heat resistance, strength and wear resistance. Methods of studies - mathematical and physical modelling. The technological approaches to the obtainment of Ti – C and Ti – Al – C systems inoculants are developed; these approaches consist of the synthesis of powder blend by high voltage electric discharge and their subsequent briquetting of this blend using the method of spark plasma sintering. It is found out, that HVED treatment of 85 % TI + 15 % Al powder composition leas to the synthesis of Titanium carbide, content of which in the blend after treatment increases with the increase of specific treatment energy. HVED-treatment in kerosene with the use of electrode system of “three points – plane” type with specific treatment energy of 20 MJ/kg leads to the obtainment of Titanium carbide in the mass quantity of ~ 20 %. The optimal regimes of the briquetting of inoculants, synthesized by HVED, using SPS method are developed. Physico-mechanical properties of heat resistant Nickel alloys, inoculated by blend of Ti – C and Ti – Al – C systems after HVED synthesis and SPS briquetting are determined. Introduction of synthesized inoculants allows decreasing its grain size from 1-2 mm to 0.2-0.5 mm as well as achieving spatial inoculation. Simplified technological scheme of the obtainment of nanostructured inoculant, based on Ti – C and Ti – Al – C systems, is developed. Realization of this scheme allows significant decrease of energy expenses on the production of such inoculant. Product Description popup.authors Lypian Yevhen V. Prystash Mykola S. Sizonenko Olga M. Taftai Eduard I Torpakov Andrii S. popup.nrat_date 2021-02-08 Close