The　microstructure　and　interface　characteristics　of　Fe-B　alloy　in　liquid　0.25　wt.%　Al-Zn　at　various　bath　temperatures　have　been　investigated.　The　results　dominate　that　bath　temperature　can　strongly　affect　corrosion　rate　and　interfacial　structures　of　Fe-B　alloy　in　liquid　0.25　wt.%　Al-Zn.　The　phase　transformation　from　Fe2Al5Znx　intermetallic　compound　to　FeAl3Znx　intermetallic　compound　can　occur　at　the　corrosion　interface　when　bath　temperature　exceeds　520　C　by　means　of　compositional　self-adjustment,　which　is　attributed　to　thermodynamics　and　kinetics　of　the　system.　Corrosion　process　and　its　interface　are　mainly　controlled　by　Al　and　Zn　inter-diffusion　with　the　increase　of　bath　temperature.　The　spalling　of　Fe2B　generates　with　the　increasing　bath　temperature　owing　to　the　presence　of　cracks　during　hot　corrosion.　(C)　2011　Elsevier　B.V.　All　rights　reserved.