A　WC-40WB-12Co　coating　has　been　developed　and　demonstrated　to　have　comparable　oxidation　resistance,　remarkably　enhanced　hardness　(over　2　times　higher)　and　improved　wear　resistance　(2-4　times　higher)　than　the　widely　used　Cr3C2-25NiCr　coating　at　elevated　temperatures.　Wear　failure　of　Cr3C2-NiCr　coating　was　dominated　by　severe　subsurface　cracking　due　to　oxidation　and　its　poor　high-temperature　mechanical　properties.　By　contrast,　in　the　WC-WB-Co　coating,　the　thin　oxide　scale　formed　on　the　surface　increased　lubrication　and　hindered　further　oxidation.　The　WC-WB-Co　coating　provided　strong　mechanical　support　for　the　oxide　layer.　The　coating　thereby　achieved　an　outstanding　high-temperature　wear　performance.　Based　on　detailed　comparisons,　the　wear　mechanisms　of　these　carbide-based　cermet　coatings　at　elevated　temperatures　were　proposed.