Corrosion behaviour of 316L stainless steel and anti-corrosion materials in a high acidified chloride solution

被引：118
作者：
Jin, Z. H. [1 ]
Ge, H. H. [1 ]
Lin, W. W. [1 ]
Zong, Y. W. [2 ]
Liu, S. J. [2 ]
Shi, J. M. [3 ]
机构：
[1] Shanghai Univ Elect Power, Shanghai Engn Res Ctr Energy Saving Heat Exchange, Shanghai Key Lab Coll & Univ Corros Control Elect, Shanghai 200090, Peoples R China
[2] Power Plant Baoshan Iron & Steel Co Ltd, Shanghai 200941, Peoples R China
[3] Tech Univ Carolo Wilhelmina Braunschweig, Braunschweig, Germany
来源：
APPLIED SURFACE SCIENCE | 2014年 / 322卷
关键词：
High acidified chloride solution; Blast furnace gas pipeline; Corrosion; Stainless steel; TA2; WIRE BEAM ELECTRODE; COLD-ROLLED STEEL; PITTING CORROSION; SULFURIC-ACID; ELECTROCHEMICAL CHARACTERIZATION; LOCALIZED CORROSION; PASSIVE FILM; WEIGHT-LOSS; DISSOLUTION; INHIBITION;
D O I：
10.1016/j.apsusc.2014.09.205
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：
The corrosion behaviour of a type 316L (UNS S31603) stainless steel (SS) expansion joint in a simulated leaching solution of sediment on blast furnace gas pipeline in a power plant is investigated by using dynamic potential polarization curves, electrochemical impedance spectroscopy (EIS), optical microscope, atomic force microscope (AFM) and Scan Kelvin Probe (SKP). Severe general corrosion accompanied by pitting corrosion occurs on the type 316L SS surface in this solution. As the immersion period increases, the charge transfer resistance R-ct decreases, the dissolution rate accelerates, the surface roughness increases and the surface potential difference enhances significantly. Then eight corrosion resistant materials are tested, the corrosion rates of type 254SMo SS, type 2507 SS and TA2 are relatively minor in the solution. The corrosion resistance properties of TA2 is most excellent, indicating it would be the superior material choice for blast furnace gas pipeline. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：47 / 56
页数：10
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