Porous composite TiCN/TiAlXN wear-resistant antioxidant coating as well as preparation method and application thereof

The invention discloses a porous composite TiCN/TiAlXN wear-resistant anti-oxidation coating and a preparation method and application thereof, the porous composite TiCN/TiAlXN wear-resistant anti-oxidation coating is a whole composed of three sub-layers including a TiN bonding layer, a TiCN porous wear-resistant layer and a TiAlXN-based wear-resistant anti-oxidation layer, the sequence of the three sub-layers is from inside to outside, and the total thickness of the coating is 7-10 microns. The composite coating prepared through the high-temperature vapor deposition, cathode arc and HiPIMS technology has the advantages of chemical and physical vapor deposition, meanwhile, the advantages of arc and magnetic control are fully utilized, and the TiAlXN layer is deposited on the surface of the base body by controlling the nitrogen and argon flow, the pulse peak current, the deposition time and the like; the multi-layer composite coating organically combined by different functional sub-layers is high in toughness,