In　situ　synthesized　(Ti,　V)C　reinforced　Ni-based　composite　coatings　were　prepared　using　laser　cladding　method.　The　phase　composition,　microstructure,　hardness,　and　wear　resistance　of　the　composite　coatings　with　different　carbide　contents　were　investigated　using　X-ray　diffraction　(XRD),　scanning　electron　microscopy　(SEM),　transmission　electron　microscopy　(TEM),　hardness　tester,　and　wear　tester.　The　evolution　process　of　the　melt　pool　was　elucidated.　In　comparison　with　the　Ni45　laser-clad　coating,　the　microhardness　and　wear　resistance　of　the　Ni-based　composite　coatings　containing　(Ti,　V)C　were　significantly　enhanced.　The　best　wear　resistance　and　highest　average　hardness　of　835.9　HV　of　the　composite　coatings　was　achieved　at　a　design　content　of　10 wt.%　of　(Ti,　V)C.　Compared　to　the　Ni45　coating,　the　wear　resistance　increased　from　1.6　to　17.1 min/mg,　an　improvement　of　approximately　9.76　times.　First-principles　calculations　were　employed　to　assess　the　mechanical　properties,　anisotropy,　and　electronic　properties　of　the　composite　ceramic　phase　(Ti,　V)C.　Hardness　calculations　were　conducted　using　a　predictive　model.　The　computational　results　indicated　that　(Ti,　V)C　exhibits　strong　covalent　bonding　characteristics,　with　a　calculated　hardness　of　3235　HV　exceeding　that　of　TiC　and　VC.　©　ASM　International　2024.