STUDY ON CORROSION BEHAVIOR OF Q235 STEEL AND 16MN STEEL BY ELECTROCHEMICAL AND WEIGHT LOSS METHOD

被引：1

作者：

Quan, Bianli ^{[1
]}

Xie, Zhiping ^{[2
]}

机构：

[1] Guizhou Univ, Coll Mat & Met, Guiyang 550025, Guizhou, Peoples R China

[2] Guizhou Normal Univ, Sch Mech & Elect Engn, Guiyang 550025, Peoples R China

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2023年 / 68卷 / 02期

关键词：

Q235; steel; 16Mn steel; Sulfur; Corrosion mechanism; Alkaline solution; DUPLEX STAINLESS-STEEL; LOW-ALLOY STEEL; CARBON-STEEL; TEMPERATURE; ENVIRONMENT; CHLORIDES;

D O I：

10.24425/amm.2023.142432

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

This study investigates the corrosion characteristics of Q235 steel and 16Mn steel in the sulfur-containing alkaline solution. The composition and the morphology of the corrosion products were analyzed by XPS and SEM respectively. The electrochemical behavior of Q235 steel and 16Mn steel was evaluated by potentiodynamic polarization curve and EIS. The results indicated that the corrosion rate of Q235 steel is greater than 16Mn steel in the early corrosion. Pitting and selective corrosion appeared on the surface of the two steels, and the surface product layer was granular and defective. XPS and EDS indicate that the structurally stable iron oxide is formed on the surface of the two steels. Electrochemical results show the corrosion kinetics of Q235 steel and 16Mn steel are simultaneously controlled by the charge transfer and ion diffusion, and the formation mechanism of corrosion products was clarified.

引用

页码：531 / 540

页数：10

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