Corrosion of Fe-17%Cr Steels in (Na2SO4+NaCl) Salts at 800 and 900oC
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초록
Stainless steel grade 430 with a composition of Fe-17%Cr was corroded in Na2SO4 and (Na2SO4+NaCl) salts at 800 and at 900oC for up to 20 h. It corroded mainly to Cr2O3, along with a small amount of Fe2O3 and Fe3O4. The formed oxide scales were neither dense nor compact enough owing to their ensuing dissolution into the salt during corrosion, which facilitated internal corrosion. Corrosion occurred faster at 900oC than 800oC. NaCl in Na2SO4 aggravated the scale adherence.
Abstract
Stainless steel grade 430 with a composition of Fe-17%Cr was corroded in Na2SO4 and (Na2SO4+NaCl) salts at 800 and at 900oC for up to 20 h. It corroded mainly to Cr2O3, along with a small amount of Fe2O3 and Fe3O4. The formed oxide scales were neither dense nor compact enough owing to their ensuing dissolution into the salt during corrosion, which facilitated internal corrosion. Corrosion occurred faster at 900oC than 800oC. NaCl in Na2SO4 aggravated the scale adherence.
참고문헌 (5)
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