The　corrosive　wear　resistance　of　copper-bearing　HHCCI　was　tested　through　experiments　and　HRTEM,　combined　with　first-principles　calculations　to　study　the　atomic　structure,　interface　fracture　work,　thermodynamic　stability,　electronic　structure　and　bonding　structure　of　six　Fe3Cr4C3(01　1　0)/gamma-Fe(101)　interface　models　with　different　termination　methods.　The　HRTEM　results　show　that　the　interface　formed　by　(01　1　0)　of　M7C3-type　carbide　and　(101)　of　the　austenite　matrix　is　a　coherent　interface.　The　first　principles　calculation　results　show　that　the　interface　formed　by　the　Fe3Cr4C3(01　1　0)-Cr　termination　model　and　the　gamma-　Fe　(101)-2　termination　model　has　the　highest　interface　bonding　strength.　The　Fe-end/7Fe-2　interface　model　is　the　most　stable.　Both　the　interfacial　chemical　energy　and　the　interfacial　elastic　energy　will　affect　the　overall　thermodynamic　stability　of　the　Fe3Cr4C3(01　1　0)/gamma-Fe　(101)　interface.　The　fracture　work　of　Fe3Cr4C3(01　1　0)　and　gamma-　Fe　(101)　is　greater　than　the　corresponding　interface　adhesion　work.　Moreover,　the　fracture　work　on　each　terminal　end　of　M7C3　along　the　(01　1　0)　surface　is　higher　than　that　on　each　terminal　end　of　gamma-　Fe　along　the　(101)　surface.　The　failure　of　HHCCI　during　corrosive　wear　may　mainly　occur　in　the　interface　area　or　the　side　close　to　the　gamma-　Fe　matrix.　The　chemical　bonds　in　the　Fe-end/7Fe　interface　are　mainly　Fe-Fe　metal　bonds,　Fe-Cr　metal　bonds　and　some　Fe-C　polar　covalent　bonds.　The　chemical　bonds　in　the　Cr-end/7Fe　interface　are　mainly　Cr-Fe　metal　bonds　and　some　Cr-C　polar　covalent　bonds.　The　chemical　bonds　in　the　C-end/7Fe　interface　are　mainly　composed　of　Cr-Fe　metal　bonds,　C-Fe　polar　covalent　bonds　and　part　of　C-Cr　polar　covalent　bonds,　as　a　result,　each　interface　exhibits　different　corrosive　wear　resistance　potentials.