Electrochemical characteristics of the dynamic progression of erosion-corrosion under different flow conditions and their effects on corrosion rate calculation

被引：2

作者：

Yunze Xu

Liang Liu

Chenbing Xu

Xiaona Wang

Mike Yongjun Tan

Yi Huang

机构：

[1] Dalian University of Technology,School of Naval Architecture and Ocean Engineering

[2] Dalian University of Technology,School of Civil Engineering

[3] Dalian University of Technology,School of Physic and Optoelectronic Engineering

[4] Deakin University,School of Engineering

来源：

Journal of Solid State Electrochemistry | 2020年 / 24卷

关键词：

Erosion-corrosion; Dynamic progression; Electrochemical parameters; Critical impact energy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The erosion-corrosion performance of X65 carbon steel at different flow conditions was electrochemically studied. Results show that the anodic polarization branch would have a significant distortion in the flowing electrolytes, leading to an overestimation of the Stern-Geary coefficient using the traditional Tafel extrapolation. It is found that the critical impact energy for the initiation of erosion-corrosion is around 0.016 μJ. Surface morphology was obviously changed from “flow mark” appearance to continuous craters with the initiation of erosion-corrosion. The results indicate that the synergy of erosion and corrosion is the main factor contributing to the erosion-corrosion damage under active corrosion. The dynamic progression of erosion-corrosion is associated with the propagation of impingement pits at anodic sites and the wear of the corrosion product film at cathodic sites.

引用

页码：2511 / 2524

页数：13

共 125 条

[1]

Liu L(2019)Detecting and monitoring erosion-corrosion using ring pair electrical resistance sensor in conjunction with electrochemical measurements Wear 428-429 328-339

[2]

Xu YZ(2018)Slurry erosion-corrosion of 90° AISI 1018 steel elbow in saturated potash brine containing abrasive silica particles Wear 410-411 149-155

[3]

Xu CB(2017)Erosion-corrosion of X-52 steel pipe under turbulent swirling impinging jets Wear 376-377 549-556

[4]

Wang XN(2005)Interaction of mechanical and electrochemical factors in erosion-corrosion of carbon steel Electrochim Acta 51 315-323

[5]

Huang Y(2012)Parametric effects on the erosion-corrosion rate and mechanism of carbon steel pipes in oil sands slurry Wear 276-277 141-148

[6]

Elemuren R(2005)Solid particle erosion-corrosion behaviour of a novel HVOF nickel aluminium bronze coating for marine applications—correlation between mass loss and electrochemical measurements Wear 258 629-640

[7]

Evitts R(2014)Determination of the critical flow velocities for erosion-corrosion of passive materials under impingement by NaCl solution containing sand Corros Sci 88 187-196

[8]

Oguocha I(2008)Correlation between repassivation kinetics and corrosion rate over a passive surface in flowing slurry Electrochim Acta 53 7022-7031

[9]

Kennell G(2006)Study on passivation and erosion-enhanced corrosion resistance by Mott-Schottky analysis Electrochim Acta 52 1108-1116

[10]

Gerspacher R(2001)Detecting electrochemical transients generated by erosion-corrosion Electrochim Acta 46 3675-3683

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