Effect of AC on corrosion behavior of X80 pipeline steel in high pH solution

被引：17

作者：

Zhu, M. ^{[1
]}

Du, C. -W. ^{[1
]}

Li, X. -G. ^{[1
]}

Liu, Z. -Y. ^{[1
]}

Wu, X. -G. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Ctr Corros & Protect, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2015年 / 66卷 / 05期

基金：

中国国家自然科学基金;

关键词：

CARBONATE-BICARBONATE SOLUTION; CHLORIDE ENVIRONMENT; CRACKING; STRESS; INITIATION; MODEL; SCC;

D O I：

10.1002/maco.201307580

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion behavior of X80 pipeline steel under the application of various waveforms AC was investigated in concentrated carbonate/bicarbonate solution by electrochemical measurements, immersion tests, and slow strain rate tensile tests. Under the application of AC current of various waveforms, the corrosion potential shifts negatively and the passivity of the steel degrades severely. Superimposed AC current causes an increase of corrosion rate, and the corrosion rate of the steel under square wave is the highest, next the triangular wave, the least sine wave. The steel mainly experiences localized corrosion under various waveforms AC, in particular with the square wave AC current, the pitting occurs more apparently. AC superimposition enhances the stress corrosion cracking (SCC) susceptibility of the steel in carbonate/bicarbonate solution, especially at square wave. At a short term effect of AC interference, the fracture mode is intergranular, and the SCC behavior of steel in high pH solution is affected by the anodic dissolution for steel with or without AC application.

引用

页码：486 / 493

页数：8

共 42 条

[1]

[Anonymous], 2007, 15970 GBT

[2] Effect of bainitic microstructure on the susceptibility of pipeline steels to hydrogen induced cracking [J].

Arafin, M. A. ;

Szpunar, J. A. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (15) :4927-4940

[3] A new understanding of intergranular stress corrosion cracking resistance of pipeline steel through grain boundary character and crystallographic texture studies [J].

Arafin, M. A. ;

Szpunar, J. A. .

CORROSION SCIENCE, 2009, 51 (01) :119-128

[4] Hydrogen permeation and hydrogen content under cathodic charging in HSLA 80 and HSLA 100 steels [J].

Banerjee, K ;

Chatterjee, UK .

SCRIPTA MATERIALIA, 2001, 44 (02) :213-216

[5] Review of stress corrosion cracking of pipeline steels in "low" and "high" pH solutions [J].

Fang, BY ;

Atrens, A ;

Wang, JQ ;

Han, EH ;

Zhu, ZY ;

Ke, W .

JOURNAL OF MATERIALS SCIENCE, 2003, 38 (01) :127-132

[6] Effects of alternating current on corrosion of a coated pipeline steel in a chloride-containing carbonate/bicarbonate solution [J].

Fu, A. Q. ;

Cheng, Y. F. .

CORROSION SCIENCE, 2010, 52 (02) :612-619

[7]

Goidanich S., 2005, CORROSION 2005, P189

[8]

Hanson H. R., 2004, CORROSION 04 NACE HO, P209

[9] Alternating current corrosion risk arising from alternating current-powered rail transit systems on cathodically protected buried steel pipelines and its measures [J].

Hosokawa, Y ;

Kajiyama, F ;

Fukuoka, T .

CORROSION, 2004, 60 (04) :408-413

[10]

Jack T. R., 2000, CORROSION, P362

← 1 2 3 4 5 →