COMPOSITE ALUMINUM MATERIALS WITH DISPERSED-HARDENED AND MODIFIED STRUCTURE, OBTAINED WITH THE USE OF NANOCARBON ADDITIVES

Description of the project: The strength of the cast composite based on AK9 silumin with nanostructured carbon at elevated temperatures is almost 330 MPa, the hardness is up to 110HV, wear resistance increases, while the plastic characteristics indicate the possibility of further plastic deformation of the cast blanks (δ = 6-10%). Pressure treatment and subsequent thermal action increases the strength characteristics up to 480 MPa. The wear rate of semi-finished products is comparable to the wear resistance of bronzes.

Advantages: Theoretical and experimental studies of the safety margin of the developed composites in comparison with steel 35 made it possible to establish a guaranteed safety margin of 10-12% with a 2.7-2.9 times lower material consumption for products.

The composites were obtained using inexpensive nanocarbon materials – fullerene soot, extracted fullerene soot, which makes them promising for industrial development.