Amorphous　metallic　coatings　with　a　composition　of　Fe(48)Cr(15)Mo(14)C(15)B(6)Y(2)　were　prepared　by　detonation　gun　spraying　process.　Microstructural　studies　show　that　the　coatings　present　a　densely　layered　structure　typical　of　thermally　sprayed　deposits　with　the　porosity　below　2%.　Both　crystallization　and　oxidation　occurred　obviously　during　spraying　process,　so　that　the　amorphous　fraction　of　the　coatings　decreased　to　54%　compared　with　fully　amorphous　alloy　ribbons　of　the　same　component.　Corrosion　behavior　of　the　amorphous　coatings　was　investigated　by　electrochemical　measurement.　The　results　show　that　the　coatings　exhibit　extremely　wide　passive　region　and　low　passive　current　density　in　3.5%　NaCl　(mass　fraction)　and　1　mol/L　HCl　solutions,　which　illustrates　excellent　ability　to　resist　localized　corrosion.