technology

A steel and bronze alloy printed on a 3D printer


Scientists of the “Scholtech” Center managed to print an alloy of steel and bronze on a 3D printer, which can be used in the future in aircraft and missile engines. Materials & Design magazine indicates that the development of 3D metal printing continues, so scientists around the world are looking for materials Suitable to be used in the industrial sector to obtain different and varied “printed” products.

And according to the “RT” website, the scientists of the Russian “Skoltykh” ​​Institute did not lag behind their colleagues in the world, as they were able to print an alloy of steel and bronze on a 3D printer, which had not been previously studied.

The researchers were able to determine the mechanical properties of the pieces they obtained, and it turned out that they are suitable for use in making aircraft and missile engines.

According to the researchers, the steel gives the engine walls high heat resistance, and the bronze gives them the necessary thermal conductivity, to avoid overheating of the final product during its operation. That is, this alloy can be used to print the combustion chamber in aircraft and missile engines.

“3D printing technology has great potential for the manufacture of composite materials – materials that consist of two different components and inherit the properties of both,” says Igor Sheshkovsky, from the Center for Materials Technology at the Institute. “Using a 3D printer, a rigid composite combustion chamber with a smooth, flawless transition can be printed within.” The outside is bronze, i.e. cools well, and the outside is steel, so it cannot be destroyed.”

The researchers studied the properties of alloys consisting of different proportions of steel and bronze: 50% steel and 50% bronze, 25% steel and 75% bronze, and others. They also used different combinations of bronze – copper, aluminium, chromium or tin.

“Now that we have confirmed that steel and bronze can be combined using 3D printing technology, and have determined the properties of the new alloy, we can determine its possible uses,” says researcher Konstantin Makarenko.

And he adds, he will try with his scientific team to print the turbine blades from this new alloy, so that the cooling channels are made of bronze, and this product will be one integrated piece devoid of attachment and connection points.

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