Cermets　have　been　widely　used　in　industry　to　combat　wear　and　erosion　because　of　their　elevated　strength　and　hardness　and　good　wear　resistance.　This　study　investigated　the　tribological　properties　of　WC-6Ni　(YN6X),　WC-6Co　(YG6X),　and　WC-TiC-Co-Ni　(TiCN)　cermets　during　sliding　over　silicon　carbide　(SiC)　in　prepared　seawater.　Tribological　experiments　of　440C　and　GCr15　steel　coupled　with　SiC　were　conducted　for　comparison.　The　influence　of　sliding　speed　was　examined　by　multiple　sequential　increases　in　speed　from　0.1　to　0.4　m　s(-1).　The　results　showed　that　the　tribological　properties　of　the　tribopairs　were　enhanced　with　growing　sliding　speed　and　were　influenced　by　complex　factors　including　material　hardness,　wear　radius,　the　lubricating　medium　environment,　and　the　tribochemical　reaction.　YN6X　performed　particularly　well　due　to　its　high　hardness　and　presence　of　Ni　which　effectively　reduced　the　corrosion　effect　of　seawater.　However,　YG6X　showed　better　wear　resistance　relative　to　YN6X　in　tap　water　due　to　its　higher　hardness.　In　particular,　through　an　investigation　of　the　wear　process　of　the　tribopairs　in　seawater,　this　study　proposed　the　coefficient　of　friction　model　for　cermet/SiC.　The　results　indicated　that　a　combination　of　YN6X/SiC　has　excellent　potential　for　application　to　seawater　hydraulic　components.