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Information × Registration Number 0218U000107, 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 Syzonenko Olga Mukolayivna, Registration Date 17-01-2018 Organization Institute of Pulse Research and Engineering popup.description2 The object of research - mixtures of powders of aluminum, iron, titanium and consolidated materials of Ti - Al - C and Fe - Ti - C - (B) systems. Optimal modes of spark-plasma sintering (SPS) consolidation are defined: the current rise rate, shuttering time and total consolidation time for TiC-Al, Ti3AlC2-TiC and TiC-(TiB2) - iron-carbon alloys for the preservation of high dispersion of grain. The conditions for the synthesis of titanium nanolaminate Ti3AlC2 - TiC by the method of high voltage electric discharge (HVED) processing (using volumetric distributed multispark discharge (VMR) at W = 15 MJ / kg) of elementary powders of the initial composition of 85% Ti + 15% Al and subsequent consolidation the IPS method at a heating rate of samples 10 ° C / s, an isothermal temperature of 1100 ° C and a time not exceeding 3 minutes are defined. Obtained 25% Al + 75% Ti and 15% Al + 85% Ti composites have a Vickers hardness of 4.7 GPa and 7.02 GPa respectively, a dynamic strength of 450 MPa and 620 MPa (the strain rate was 600 to 800 s-1) and elastic modulus of 14,5 GPa and 21 GPa. Metal-matrix composites obtained by sps consolidation of blend of 75% Fe + 25% Ti and 75% Fe + 20% Ti + 5% B4C initial composition after HVED treatment (using spark discharge at Ws = 6,25 MJ / kg) have hardness of HV5 = 14,7 GPa and HV5 = 21 GPa respectively, uniform fine-grained structure of hardened TiC and TiV whose size ranges from 300 nm to 600 nm. Product Description popup.authors Зайченко А.Д. Лмпян Є.В. Присташ М.С. Сизоненко О.М. Торпаков А.С. Трегуб В.А. popup.nrat_date 2020-04-02 Close