Production of high-quality ingots and semi-finished products from a new dispersion-strengthened Al-Mg alloy, additionally alloyed with transition and rare earth metals.

Purpose. To produce high-quality metal products from a new alloy of the Al-Mg-PM-REM system with economical use of energy and materials.

Specifications. Continuously cast ingots from the new alloy of the Al-Mg-PM-REM system contain ≤ 0.12 cm3/100 g of hydrogen and ≤ 0.05 vol. % oxide inclusions. Products made from the new alloy in the cold-deformed and annealed state exceed the known analogues in mechanical properties: tensile strength by 12%, plasticity limit by 28%, and also have higher corrosion resistance.

Application area. Metallurgical and mechanical engineering industry.

Advantages. Products made from the new alloy, produced using the developed technology, exceed known analogues in mechanical properties and corrosion resistance.

Technical and economic effect. An industrial test has shown that the created technologies for refining and alloying aluminum alloys make it possible to reduce the overheating temperature (from 1100⁰C to 800⁰C) of the metal in an MHD installation when preparing alloys with refractory metals, as well as to reduce the length by 2 times. This allows you to save up to 30% of energy resources. The developed technology allows us to avoid the use of beryllium, which is harmful to health and the environment, in the preparation of alloys of the Al-Mg-PM-REM system.

Description. To obtain high-quality products from the new alloy of the Al-Mg-PM-REM system, a vacuum MHD processing complex is used, which provides processing of the melt with an electromagnetic field and electric current, constant electromagnetic stirring of the melt at all stages of alloy preparation, vacuum refining, and filtering of the melt. filter, feeding the melt under electromagnetic pressure into the continuous casting mold, conducting all melting and casting processes in a protective atmosphere, controlled electromagnetic stirring of the alloy in the mold during casting and crystallization of ingots.

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