Hybrid nanotechnology and combined ion-beam processing equipment

Brief description
Nanostructuring of surface layers is the most effective way to strengthen them, which ensures the most uniform stress distribution at the coating-substrate interface. The presence of a quasi-amorphous phase in the nanostructure ensures effective relaxation of stress concentrators of all scales in the nanostructured surface layer, leading to a significant increase in the mechanical properties of the loaded part. Maximum effects are achieved with:
- creation of multicomponent compositions in the surface layer;
- using the smallest possible “chessboard” structure of the interface, which makes it possible to synthesize clusters of various chemical compounds and phases in cells of tensile normal stresses, and keep their interfaces in cells of compressive normal stresses;
- bombardment of the sprayed coating layers with metal-metalloid ion beams, which contribute to the distribution of certain nanoclusters over the “chessboard” cells at the interfaces.

The technology allows the process to be carried out without heating products or at low temperatures (less than 150 °C), which makes it possible to strengthen machine parts made from materials with low tempering or melting temperatures. Using the proposed technology, it is possible to strengthen parts made from materials that cannot be strengthened by methods used today in industry (for example: hard alloys, ceramics, polymers, stainless and copper alloys, etc.), as well as realize the possibility of comprehensively improving several properties of materials simultaneously, which, with traditional methods of hardening, change in mutually opposite directions, for example, increasing strength and ductility, increasing wear resistance and reducing the coefficient of friction.

During processing, there is no oxidation of the surface of the products; do not change, and in some cases improve the surface roughness parameters of products, so this processing method is convenient to use as a finishing operation in the technological process of manufacturing products or used for additional hardening of finished products; The dimensions and shape of products do not change, which makes it possible to strengthen machine parts that are prone to distortion and warping; There are no problems of adhesion and transition layer that exist when hardening products by coating. The technological process does not harm the environment.

Technical characteristics