Erosion-enhanced corrosion of carbon steel at passive state

被引：35

作者：

Lu, B. T. ^{[1
]}

Luo, J. L. ^{[1
]}

Guo, H. X. ^{[1
]}

Mao, L. C. ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada

来源：

CORROSION SCIENCE | 2011年 / 53卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Mild steel; Erosion; Pitting corrosion; Anodic dissolution; Passive film; STAINLESS-STEEL; SLURRY EROSION; MODEL; FILM; ELECTRODE; VELOCITY; SYSTEM; IRON;

D O I：

10.1016/j.corsci.2010.09.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Erosion-enhanced corrosion of carbon steel in passive state during slurry impingement is dominated by the competition between fresh surface generation and repassivation The presence of chloride retards repassivation The average corrosion rate is quantitatively predictable when the hydrodynamics of slurry and repassivation kinetics of target material are known The electrochemical impedance spectroscopy suggests that the corrosion in flowing slurry is under mixed control of interface charge transfer and mass transport The later becomes the dominative role gradually with increasing generation rate of fresh surface Slurry impingement may facilitate pit formation and promote repassivation of existing pits simultaneously Crown Copyright (C) 2010 Published by Elsevier Ltd All rights reserved

引用

页码：432 / 440

页数：9

共 35 条

[1]

[Anonymous], 2009, G6186 ASTM

[2]

[Anonymous], MECHANOCHEMISTRY MAT

[3]

[Anonymous], UHLIGS HDB

[4]

BEAVERS JA, 1986, 8650 MCIC

[5] Detecting electrochemical transients generated by erosion-corrosion [J].

Burstein, GT ;

Sasaki, K .

ELECTROCHIMICA ACTA, 2001, 46 (24-25) :3675-3683

[6] DEVELOPMENT OF CONTROLLED HYDRODYNAMIC TECHNIQUES FOR CORROSION TESTING [J].

CHEN, TY ;

MOCCARI, AA ;

MACDONALD, DD .

CORROSION, 1992, 48 (03) :239-255

[7]

De Waard C., 1995, 128 NACE INT

[8]

EFIRD KD, 2000, 52 NACE INT

[9] Characterisation of phosphate coatings on zinc, zinc-nickel and mild steel by impedance measurements in dilute sodium phosphate solutions [J].

Flis, J ;

Tobiyama, Y ;

Mochizuki, K ;

Shiga, C .

CORROSION SCIENCE, 1997, 39 (10-11) :1757-1770

[10] Interaction of mechanical and electrochemical factors in erosion-corrosion of carbon steel [J].

Guo, HX ;

Lu, BT ;

Luo, JL .

ELECTROCHIMICA ACTA, 2005, 51 (02) :315-323

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