HIGH TEMPERATURE CORROSION OF HIGH VELOCITY ARC SPRAYED Fe-Al COMPOSITE COATINGS
高速电弧喷涂Fe-Al复合涂层高温腐蚀研究

The high temperature corrosion performance of High Velocity Arc Sprayed(HVAS) Fe-Al composite coatings on plain sted 20 G was studied by mass change measurements,while surface morphology of the corroded samples were analyzed by SEM.Results show that with the increasing of temperature,the corrosion rate of all Fe-Al coatings also increased,the corrosion resistance of the Fe-Al coating with addition of Cr3C2 is superior to those without or with addition of WC.An oxide scale consisted of Cr and Al oxides forme...