METHOD OF NANOCOMPOSITE COATING APPLICATION ONTO STEEL ARTICLE SURFACE Russian patent published in 2014 - IPC C23C14/06 B82Y30/00 

FIELD: machine building.

SUBSTANCE: prior to applying coating onto the article surface it is necessary to evacuate air from the vacuum chamber, clean the article surface and the vacuum chamber in the inert gas environment, perform ion etching and ion-plazma nitriding of the article surface. The coating is produced by applying a microlayer of nanolayers of titanium and aluminium 1-100 nm thick and a microlayer of nanolayers of titanium nitride and aluminium nitride 1-100 nm thick. After each of the microlayers is applied, the ion-beam cleaning of the surface by argon is carried out for 10 minutes under pressure of 1.5 Pa and displacement voltage of 1150 V. Application of microlayers and the following ion-beam cleaning is performed in N stages, where N is an integer number and N ≥ 1, up to the production of a protective coating with the total thickness of 5.8-7.2 and more.

EFFECT: extended service life of the coating under erosion, corrosion and high temperatures.

4 cl, 1 tbl