| Title |
Research Paper - Surface Treatment - : A Study of Corrosion Resistance of Aluminized 316L Stainless Steel for Molten Carbonate Fuel Cell |
| Authors |
정환국(Hwan Kuk Jeong); 김남진(Nam Jin Kim); 이덕열(Dok Yol Lee) |
| Abstract |
Corrosion causes a severe problem in molten carbonate fuel cell(MCFC) at the cell operating temperature of 650℃. To solve the corrosion problem, aluminum was coated by pack cementation on 316L stainless steel which is used for cell housing of MCFC. The coating was done in Ar atmosphere at 900℃ and 1100℃ for 2hrs using a pack composed of aluminum(30wt.%), activator(NH₄Cl:5wt.%) and inert filler(Al₂O₃:balance, 65wt.%) powders. The microstructure of aluminized specimen was examined by scanning electron microscope and phases formed on the specimen were analysed using XRD and EPMA. The non-coated and aluminized specimens were tested in molten carbonate(62㏖%Li₂CO₃-38㏖%K₂CO₃) and their corrosion resistances were evaluated. |