Influence of Magnesium Ions in the Seawater Environment on the Improvement of the Corrosion Resistance of Low-Chromium-Alloy Steel

被引：10

作者：

Song, Sol-Ji ^{[1
]}

Kim, Jung-Gu ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, 300 Chunchun Dong, Suwon 440746, South Korea

来源：

MATERIALS | 2018年 / 11卷 / 01期

关键词：

low-alloy steel; EPMA; electrochemistry; corrosion; rust layer; MACROCYCLIC POLYETHER COMPOUNDS; MARINE IMMERSION CORROSION; BALLAST TANK; CARBON-STEEL; IMPEDANCE SPECTROSCOPY; MILD-STEEL; RUST LAYER; BEHAVIOR; WATER; NI;

D O I：

10.3390/ma11010162

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study examined the synergic effect of alloying the element Cr and the environmental element Mg2+ ions on the corrosion property of a low-alloy steel in seawater at 60 degrees C, by means of electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR) tests and weight-loss tests. The Mg2+ ions in seawater played an important role in lowering the electron transfer of the rust layer in the Cr-containing steel. The corrosion resistance of the Cr-containing steel is superior to that of blank steel in Mg2+ ions containing seawater. XPS and XRD results indicated that the formation of MgFe2O4 and a mixed layer (Cr oxide + FeCr2O4 + MgCr2O4) improved the corrosion resistance of the low-alloy steel in the seawater.

引用

页数：18

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