Scientifically Based Choice of Heat-Resistant Cast Aluminum Alloys of New Generation

Abstract:

The phase composition of the AlNiMnFeSiZr system is analyzed as applied to heat resistant nikalines (aluminum alloys of a new generation based on Ni containing eutectic), which are strengthened by the Al₃Zr (L12) nanoparticles. It is shown that the presence of iron and silicon considerably complicates the phase analysis when compared with the AN4Mts2 base alloy. Silicon strongly widens the crystallization range, which increases the tendency of the alloy to form hot cracks during casting. It is shown that economically doped nikaline AN2ZhMts substantially exceeds the most heat resistant cast aluminum alloys of the AM5 grade in the totality of its main characteristics (heat resistance and mechanical and production properties).

• Periodical: Applied Mechanics and Materials (Volume 372)
• Pages: 49-53
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.372.49
• Online since: August 2013
• Authors: Aliya Amenova, Nikolay Belov, Dauletkhan Smagulov, Ainagul Toleuova
• Keywords: Cast Aluminum Alloy, Economically Doped, Heat Resistant, High Strength, Specific Strength, Thermally Stable

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