By　applying　self-made　intensive　dual-phase　steel　alloy　(IDP)　powders　for　repairing　various　substrate　materials,　laser　additive　manufacturing　(LAM)　test　was　conducted　on　the　surface　of　2205　dual-phase　stainless　steels　to　evaluate　performance　of　the　laser　additively　manufactured　IDP　layers.　The　microstructure,　microhardness,　tensile　strength　and　electrochemical　corrosion　resistance　of　the　laser　additively　manufactured　IDP　were　investigated.　The　results　showed　that　the　microstructure　of　cladding　layer　of　the　IDP　powders　was　characterized　by　ferrite　and　austenite　phases.　Owing　to　the　IDP　powders　contained　a　high　Ni　(nickel)　content,　Fe3Ni2　phase　was　generated　in　the　cladding　layer;　the　microhardness　of　the　cladding　layer　was　improved　by　about　15%　compared　with　that　of　the　substrate:　the　average　microhardness　of　the　IDP　claddings　was　about　328　HV;　the　tensile　strength　of　the　IDP　cladding　layer　was　about　900　MPa,　which　was　larger　than　that　(750　MPa)　of　BM.　The　corrosion　resistance　of　IDP　claddings　declined　to　some　extent　compared　with　that　of　2205　dual-phase　stainless　steel　BM.　At　last,　bonding　strengths　between　the　laser　additively　manufactured　IDP　layer　and　various　substrate　materials　(i.e.SAF2205,　SAF2507,　S32550　and　022Cr17Ni12Mo2)　were　evaluated　by　a　series　of　tensile　tests　in　vertical　directions,　and　the　bonding　strengths　were　satisfactory.　©　2020　The　Authors