Flow-induced corrosion of absorbable magnesium alloy: In-situ and real-time electrochemical study

Juan Wang; Yongseok Jang; Guojiang Wan; Venkataraman Giridharan; Guang Ling Song; Zhigang Xu; Youngmi Koo; Pengkai Qi; Jagannathan Sankar; Nan Huang; Yeoheung Yun

doi:10.1016/j.corsci.2015.12.020

Flow-induced corrosion of absorbable magnesium alloy: In-situ and real-time electrochemical study

Juan Wang
, Yongseok Jang
, Guojiang Wan
, Venkataraman Giridharan
, Guang Ling Song
, Zhigang Xu
, Youngmi Koo
, Pengkai Qi
, Jagannathan Sankar
, Nan Huang
, Yeoheung Yun^*

^*Corresponding author for this work

Department of Dentistry

North Carolina A&T State University
Southwest Jiaotong University
Xiamen University

Research output: Contribution to journal › Journal article › peer-review

109 Scopus citations

Abstract

An in-situ and real-time electrochemical study in a vascular bioreactor was designed to analyze corrosion mechanism of magnesium alloy (MgZnCa) under mimetic hydrodynamic conditions. Effect of hydrodynamics on corrosion kinetics, types, rates and products was analyzed. Flow-induced shear stress (FISS) accelerated mass and electron transfer, leading to an increase in uniform and localized corrosions. FISS increased the thickness of uniform corrosion layer, but filiform corrosion decreased this layer resistance at high FISS conditions. FISS also increased the removal rate of localized corrosion products. Impedance-estimated and linear polarization-measured polarization resistances provided a consistent correlation to corrosion rate calculated by computed tomography.

Original language	English
Pages (from-to)	277-289
Number of pages	13
Journal	Corrosion Science
Volume	104
DOIs	https://doi.org/10.1016/j.corsci.2015.12.020
State	Published - 2016.03.1

Keywords

EIS
Flow induced corrosion
Magnesium
Monitoring
Vascular bioreactor

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10.1016/j.corsci.2015.12.020

Cite this

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title = "Flow-induced corrosion of absorbable magnesium alloy: In-situ and real-time electrochemical study",

abstract = "An in-situ and real-time electrochemical study in a vascular bioreactor was designed to analyze corrosion mechanism of magnesium alloy (MgZnCa) under mimetic hydrodynamic conditions. Effect of hydrodynamics on corrosion kinetics, types, rates and products was analyzed. Flow-induced shear stress (FISS) accelerated mass and electron transfer, leading to an increase in uniform and localized corrosions. FISS increased the thickness of uniform corrosion layer, but filiform corrosion decreased this layer resistance at high FISS conditions. FISS also increased the removal rate of localized corrosion products. Impedance-estimated and linear polarization-measured polarization resistances provided a consistent correlation to corrosion rate calculated by computed tomography.",

keywords = "EIS, Flow induced corrosion, Magnesium, Monitoring, Vascular bioreactor",

author = "Juan Wang and Yongseok Jang and Guojiang Wan and Venkataraman Giridharan and Song, \{Guang Ling\} and Zhigang Xu and Youngmi Koo and Pengkai Qi and Jagannathan Sankar and Nan Huang and Yeoheung Yun",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2016",

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day = "1",

doi = "10.1016/j.corsci.2015.12.020",

language = "English",

volume = "104",

pages = "277--289",

journal = "Corrosion Science",

issn = "0010-938X",

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TY - JOUR

T1 - Flow-induced corrosion of absorbable magnesium alloy

T2 - In-situ and real-time electrochemical study

AU - Wang, Juan

AU - Jang, Yongseok

AU - Wan, Guojiang

AU - Giridharan, Venkataraman

AU - Song, Guang Ling

AU - Xu, Zhigang

AU - Koo, Youngmi

AU - Qi, Pengkai

AU - Sankar, Jagannathan

AU - Huang, Nan

AU - Yun, Yeoheung

PY - 2016/3/1

Y1 - 2016/3/1

N2 - An in-situ and real-time electrochemical study in a vascular bioreactor was designed to analyze corrosion mechanism of magnesium alloy (MgZnCa) under mimetic hydrodynamic conditions. Effect of hydrodynamics on corrosion kinetics, types, rates and products was analyzed. Flow-induced shear stress (FISS) accelerated mass and electron transfer, leading to an increase in uniform and localized corrosions. FISS increased the thickness of uniform corrosion layer, but filiform corrosion decreased this layer resistance at high FISS conditions. FISS also increased the removal rate of localized corrosion products. Impedance-estimated and linear polarization-measured polarization resistances provided a consistent correlation to corrosion rate calculated by computed tomography.

AB - An in-situ and real-time electrochemical study in a vascular bioreactor was designed to analyze corrosion mechanism of magnesium alloy (MgZnCa) under mimetic hydrodynamic conditions. Effect of hydrodynamics on corrosion kinetics, types, rates and products was analyzed. Flow-induced shear stress (FISS) accelerated mass and electron transfer, leading to an increase in uniform and localized corrosions. FISS increased the thickness of uniform corrosion layer, but filiform corrosion decreased this layer resistance at high FISS conditions. FISS also increased the removal rate of localized corrosion products. Impedance-estimated and linear polarization-measured polarization resistances provided a consistent correlation to corrosion rate calculated by computed tomography.

KW - EIS

KW - Flow induced corrosion

KW - Magnesium

KW - Monitoring

KW - Vascular bioreactor

UR - https://www.scopus.com/pages/publications/84958983325

U2 - 10.1016/j.corsci.2015.12.020

DO - 10.1016/j.corsci.2015.12.020

M3 - Journal article

AN - SCOPUS:84958983325

SN - 0010-938X

VL - 104

SP - 277

EP - 289

JO - Corrosion Science

JF - Corrosion Science

ER -

Flow-induced corrosion of absorbable magnesium alloy: In-situ and real-time electrochemical study

Abstract

Keywords

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