Critical conditions for pit initiation and growth of austenitic stainless steels

M. Al Ameri; Y. Yi; P. Cho; S. Al Saadi; C. Jang; Philip Beeley

doi:10.1016/j.corsci.2014.12.006

Critical conditions for pit initiation and growth of austenitic stainless steels

M. Al Ameri
, Y. Yi
, P. Cho
, S. Al Saadi
, C. Jang
, Philip Beeley

Federal Authority for Nuclear Regulation
Department of Industrial and Systems Engineering Korea Advanced Institute of Science and Technology

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

The pitting behaviour of 316 stainless steel in NaCl solution was investigated using potentiodynamic (PD) and potentiostatic (PS) polarization. Tests with the mode change from PD to PS at potentials close to the pitting potential showed that the potential could play a role in the stable pitting by maintaining the pit stability product. The metastable pit growth was studied by changing the mode at potentials far below the pitting potential and by characterizing the first current density spikes. The results suggested that the cumulative electric charge density governs the metastable pit initiation as a critical condition.

Original language	British English
Pages (from-to)	209-216
Number of pages	8
Journal	Corrosion Science
Volume	92
DOIs	https://doi.org/10.1016/j.corsci.2014.12.006
State	Published - 1 Mar 2015

Keywords

A. Stainless steel
B. Polarization
C. Pittingcorrosion

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10.1016/j.corsci.2014.12.006

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title = "Critical conditions for pit initiation and growth of austenitic stainless steels",

abstract = "The pitting behaviour of 316 stainless steel in NaCl solution was investigated using potentiodynamic (PD) and potentiostatic (PS) polarization. Tests with the mode change from PD to PS at potentials close to the pitting potential showed that the potential could play a role in the stable pitting by maintaining the pit stability product. The metastable pit growth was studied by changing the mode at potentials far below the pitting potential and by characterizing the first current density spikes. The results suggested that the cumulative electric charge density governs the metastable pit initiation as a critical condition.",

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note = "Funding Information: The authors are grateful for the financial support and test facilities provided by Khalifa University and the support from MSc Nuclear Engineering Cooperation for Al Ameri and Federal Authority for Nuclear Regulation (FANR) for Al Saadi. Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd.",

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doi = "10.1016/j.corsci.2014.12.006",

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AU - Al Ameri, M.

AU - Yi, Y.

AU - Cho, P.

AU - Al Saadi, S.

AU - Jang, C.

AU - Beeley, Philip

N1 - Funding Information: The authors are grateful for the financial support and test facilities provided by Khalifa University and the support from MSc Nuclear Engineering Cooperation for Al Ameri and Federal Authority for Nuclear Regulation (FANR) for Al Saadi. Publisher Copyright: © 2014 Elsevier Ltd.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - The pitting behaviour of 316 stainless steel in NaCl solution was investigated using potentiodynamic (PD) and potentiostatic (PS) polarization. Tests with the mode change from PD to PS at potentials close to the pitting potential showed that the potential could play a role in the stable pitting by maintaining the pit stability product. The metastable pit growth was studied by changing the mode at potentials far below the pitting potential and by characterizing the first current density spikes. The results suggested that the cumulative electric charge density governs the metastable pit initiation as a critical condition.

AB - The pitting behaviour of 316 stainless steel in NaCl solution was investigated using potentiodynamic (PD) and potentiostatic (PS) polarization. Tests with the mode change from PD to PS at potentials close to the pitting potential showed that the potential could play a role in the stable pitting by maintaining the pit stability product. The metastable pit growth was studied by changing the mode at potentials far below the pitting potential and by characterizing the first current density spikes. The results suggested that the cumulative electric charge density governs the metastable pit initiation as a critical condition.

KW - A. Stainless steel

KW - B. Polarization

KW - C. Pittingcorrosion

UR - https://www.scopus.com/pages/publications/84921435887

U2 - 10.1016/j.corsci.2014.12.006

DO - 10.1016/j.corsci.2014.12.006

M3 - Article

AN - SCOPUS:84921435887

SN - 0010-938X

VL - 92

SP - 209

EP - 216

JO - Corrosion Science

JF - Corrosion Science

ER -

Critical conditions for pit initiation and growth of austenitic stainless steels

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Keywords

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