A　Fe48Cr15Mo14C15B6Y2　alloy　with　high　glass　forming　ability　(GFA)　was　selected　to　prepare　amorphous　metallic　coatings　by　atmospheric　plasma　spraying　(APS).　The　as-deposited　coatings　present　a　dense　layered　structure　and　low　porosity.　Microstructural　studies　show　that　some　nanocrystals　and　a　fraction　of　yttrium　oxides　formed　during　spraying,　which　induced　the　amorphous　fraction　of　the　coatings　decreasing　to　69%　compared　with　amorphous　alloy　ribbons　of　the　same　component.　High　thermal　stability　enables　the　amorphous　coatings　to　work　below　910　K　without　crystallization.　The　results　of　electrochemical　measurement　show　that　the　coatings　exhibit　extremely　wide　passive　region　and　relatively　low　passive　current　density　in　3.5%　NaCl　and　1　mol/L　HCl　solutions,　which　illustrate　their　superior　ability　to　resist　localized　corrosion.　Moreover,　the　corrosion　behavior　of　the　amorphous　coatings　in　1　mol/L　H2SO4　solution　is　similar　to　their　performance　under　conditions　containing　chloride　ions,　which　manifests　their　flexible　and　extensive　ability　to　withstand　aggressive　environments.