Effect of Al and Si addition on passivation of stainless steels in H2SO4 solution

被引：1
|
作者：
Fujimura, Akihiro [1 ]
Abe, Masatoshi [2 ]
Kawano, Akinori [3 ]
Iwai, Mana [4 ]
Kitano, Sho [4 ]
Habazaki, Hiroki [4 ]
Fushimi, Koji [4 ]
机构：
[1] Hokkaido Univ, Grad Sch Chem Sci & Engn, Kita 13 Jo,Nishi 8 Chome,Kita Ku, Sapporo, Hokkaido 0608628, Japan
[2] Nippon Steel Corp Ltd, Res & Dev, Tobata Ku, 1-1 Tobihata Cho,Tobata Ku, Kitakyushu, Fukuoka 8048501, Japan
[3] Nippon Steel Corp Ltd, Res & Dev, 6-1,Marunouchi 2 Chome,Chiyoda Ku, Tokyo 1008071, Japan
[4] Hokkaido Univ, Fac Engn, Kita 13 Jo,Nishi 8 Chome,Kita Ku, Sapporo, Hokkaido 0608628, Japan
来源：
CORROSION SCIENCE | 2024年 / 227卷
关键词：
Stainless steel; Passivity; Additive Al; Additive Si; ICP-OES; FE-CR ALLOYS; POLARIZATION BEHAVIOR; ANODIC-DISSOLUTION; RESOLVED RRDE; CHROMIUM; FILMS; IRON; ACID; OXIDATION; CHEMISTRY;
D O I：
10.1016/j.corsci.2023.111756
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dissolved masses of Fe, Cr, Al, and Si in H2SO4 solution during the polarization of Cr-containing steels were quantified by online ICP-OES. The active dissolution current on 11Cr-2Al/-2Si was smaller than that on 11Cr due to the enrichment of Al/Si on the steel. The Cr dissolution from 11Cr2Al was suppressed in passive state, while that from 11Cr2Si was decreased in active-passive transition because accumulated Al or Si products have different physicochemical effects on the Cr-enrichment of the surface. Roles of Al/Si in corrosion process, especially passivation, were discussed based on quantitative analysis of dissolution products detected by ICPOES.
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页数：11
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