Effect of Mn additions on the corrosion behaviour of TWIP Fe-Mn-Al-Si austenitic steel in chloride solution

被引：109

作者：

Fajardo, S. ^{[1
]}

Llorente, I. ^{[1
]}

Jimenez, J. A. ^{[1
]}

Bastidas, J. M. ^{[1
]}

Bastidas, D. M. ^{[2
]}

机构：

[1] CSIC, Natl Ctr Met Res CENIM, Ave Gregorio del Amo 8, Madrid 28040, Spain

[2] Univ Akron, Natl Ctr Educ & Res Corros & Mat Performance, NCERCAMP UA, Dept Chem Biomol & Corros Engn, Akron, OH 44325 USA

来源：

CORROSION SCIENCE | 2019年 / 154卷

关键词：

TWIP steel; Corrosion; Manganese; Polarization curves; EIS; XPS; STACKING-FAULT ENERGY; STAINLESS-STEEL; CARBON-STEEL; SPECTROSCOPY; PLASTICITY; ELECTRODE; FILM; XPS;

D O I：

10.1016/j.corsci.2019.04.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion of TWIP austenitic steels Fe-Mn-3AI-3Si was studied using polarization curves, EIS tests and XPS. Results indicated that increased concentrations of Mn were detrimental to its corrosion resistance. XPS study revealed that pseudo-protective oxide layer was composed of FeO, Fe2O3, FeOOH, Al2O3, MnO and MnO2. Enrichment of Mn oxides in the outermost oxide layer was found as Mn increased in the TWIP steel bulk along with a decrease in Fe oxides. The increased corrosion susceptibility exhibited with the concentration of Mn in the alloys was associated with the greater contribution of the less protective Mn oxide in the surface film.

引用

页码：246 / 253

页数：8

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