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

被引：7

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.

引用

页数：11

共 53 条

[1] High temperature oxidation of Fe-Al and Fe-Cr-Al alloys: The role of Cr as a chemically active element [J].