Increasing service life of internal combustion engines pistons using nanocomposite coatings

Unique structure and properties of nanocomposite coatings (nanocrystalline, amorphous, microlayered structures, high purity, ultra high hardness, exclusively high adhesion with various bases, special physico-chemical and other properties), vivid tribological properties

Nanocomposite coatings  VPN-1 Main coatings characteristics Coatings are deposited using nanotechnology Microhardness 25000-45000 MPa Thickness 1-5 mkm. Surface rouhness not less than base. Vivid adhesion with base. Friction coefficient – 0,005 – 0,02. Thermal Stability – up to 900°С.
Nanocomposite coatings  VPN-1 Antiborescuffing wearproof coatings on diesel engine D80 piston from aluminium alloy Prevents scuffing working in pair with cylinder cast iron under conditions of borderline lubrication. Relative increasing of life cycle in 20-80 times and wear decreasing of rider in 4-5 times.	Antiborescuffing wearproof coatings on diesel engine D80 piston from aluminium alloy

Deposition of functional strengthening, wearproof, antifriction and anti bore scuffing coatings.       Development of new and increasing characteristics  Coatings types  Coating type Structure Characteristics Properties   Recomendations Hv, kg/mm2 Friction coefficient Thickness, mkm   VPN-1 Mo-Ti-N multilayer anti bore scuffing in pare with cylinder sleeve cast iron. Relative increasing of service life is up to 20–80 times, when wear of rider decreased in 4-5 times. 800-2500   0,005 – 0,02   3-5 Wearproof anti bore scuffing coatings .                 VPNK-2f TiAlN nanostructured Increased reliability and lifetime of frictional pairs (for example fuel pump plunger). 2500- 3000   0,02   3-5 Nanocomposite antifrictional coatings.                 VPNK-3f TiAlN + Mo-N nanostructure   800-2500   0,01 – 0,02   3-5 Nanocomposite antifrictional coatings.                 VPNK-3fm AlTiN multilayer   3000-3500   0,02   3-5 Nanocomposite antifrictional coatings with improved wearproff.