Hardening of Aluminum Alloys with Nano-Dispersed Inclusions during the Implementation of Energy-Saving Process of Self-Propagating High-Temperature Synthesis in Aluminum Melt

Abstract:

It was demonstrated that the application of self-propagating high-temperature synthesis as a low energy expenditure method to produce alloys of the Al-TiC system is of high priority. The process for the preparation of the charge and obtaining a composite alloywere described. The results of studies of electrical conductivity and mechanical properties of aluminum matrix composite alloys, modified with nanoparticles of titanium carbide TiC werepresented.Alloys with compositions: Al-10% TiC, Al7%Si + 10% TiC and Al9%Si + 10% TiC, as well as the original matrix materials: pure aluminum and Al9%Si werestudied. The index of plasticity was obtained by calculation. This calculated value showed that the experimental samples are small crystalline materials and nanomaterials. It was shown that the addition of nanoparticles of titanium carbide improves the mechanical properties of the initial alloy, without significantly reducing the electrical conductivity (no more than 30%).

• Periodical: Applied Mechanics and Materials (Volume 792)
• Pages: 590-595
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.792.590
• Online since: September 2015
• Authors: Anton Ermoshkin*, Ivan Timoshkin, Alfiya Lutz
• Keywords: Aluminum Matrix Composite Alloys, Electrical Conductivity, Mechanical Properties, Nanoparticles of Titanium Carbide, Reinforcing Phase

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