The　interfacial　morphology　and　corrosion　resistance　of　low　carbon　Fe-B　cast　steels　in　zinc　bath　at　520　degrees　C　were　investigated.　The　results　show　Fe-B　cast　steel　containing　high　Cr　and　Ni　exhibits　the　best　corrosion　resistance　to　liquid　zinc.　The　corrosion　layers　are　composed　of　Gamma-Fe3Zn10,　delta-FeZn10,　xi-FeZn13　and　eta-Zn.　The　corrosion　behaviour　of　Fe-B　cast　steels　includes　the　following　processes:　the　preferential　leach　and　dissolution　of　Cr　and　Ni,　the　formation　of　Fe-Zn　compounds　controlled　by　zinc　atom　diffusion,　and　the　spalling　of　borides　without　the　supporting　role　of　alpha-(Fe,　Cr)　matrix　corroded　by　liquid　zinc.　Crown　Copyright　(C)　2011　Published　by　Elsevier　Ltd.　All　rights　reserved.