Effect of Film-Forming Amines on the Acidic Stress-Corrosion Cracking Resistance of Steam Turbine Steel

被引：5
|
作者：
De Seranno, Tim [1 ]
Lambrechts, Ellen [1 ]
De Meyer, Evelyn [2 ]
Hater, Wolfgang [3 ]
De Geyter, Nathalie [4 ]
Verliefde, Arne R. D. [2 ]
Depover, Tom [1 ]
Verbeken, Kim [1 ]
机构：
[1] Univ Ghent, Dept Mat Text & Chem Engn, Res Unit Sustainable Mat Sci, Technol Pk 46, B-9052 Zwijnaarde, Belgium
[2] Univ Ghent, Dept Green Chem & Technol, Coupure Links 653, B-9000 Ghent, Belgium
[3] Kurita Europe GmbH, Niederheider Str 22, D-40589 Dusseldorf, Germany
[4] Univ Ghent, Dept Appl Phys, Res Unit Plasma Technol, Sint Pietersnieuwstr 41, B-9000 Ghent, Belgium
来源：
METALS | 2020年 / 10卷 / 12期
关键词：
film-forming amines; stress-corrosion cracking; low alloy steel; acid solutions; XPS; SEM; FLOW-ACCELERATED CORROSION; ION-EXCHANGE DEMINERALIZATION; ORGANIC-MATTER; WATER; BEHAVIOR; OCTADECYLAMINE; PLASMA; DAMAGE;
D O I：
10.3390/met10121628
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work evaluates the effect of film-forming amines (FFA) on the acidic stress-corrosion cracking (SCC) resistance of NiCrMoV turbine steel. Contact angle measurements show an increased hydrophobicity of the surface when coating the steel with oleyl propylene diamine (OLDA). According to potentiodynamic measurements and post-mortem scanning electron microscopy (SEM) analysis, anodic dissolution and hydrogen embrittlement still occur when the steel is FFA coated. In situ constant extension rate testing (CERT) in acidic aqueous environment at elevated temperature of FFA-coated steel shows a ductility gain compared to non-coated steel, explained by a decrease in both corrosion rate and hydrogen uptake.
引用
收藏
页码：1 / 20
页数：20
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