Rusal has developed a heavy-duty composite material for 3D printing

Rusal, one of the world's largest aluminum producers, has developed a new composite material for 3D printing. The metal matrix composite is 30% stronger than the most durable aluminum powder alloy and opens up new prospects for additive manufacturing, the company noted.

The RS-770K composite material designed for 3D printing was developed by the Institute of Light Materials and Technologies (ILMiT), part of Rusal. "The unique properties of the composite open up new possibilities for additive manufacturing.: In terms of strength characteristics, it makes a significant step towards steel and titanium alloys, but at the same time retains the lightness of aluminum," said Viktor Mann, Technical Director of Rusal.

The metal matrix (aluminum base with ceramic particle integration) composite has a strength of 615 megapascals, which is 30% higher than that of the alloy with a high content of rare earth metal scandium RS-553, which is the most durable aluminum powder alloy in the Rusal product line.

RS-770K is the first composite material for 3D printing created by ILMIT. Previously, the institute developed more than 10 aluminum alloys for additive manufacturing, improving the characteristics (strength, heat resistance, yield strength, and others) of the world's most common powder alloy AlSi10Mg (aluminum-silicon-magnesium system).

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