Improvement of corrosion resistance of stainless steel welded joint using a nanostructured oxide layer

Jun Heo; Sang Yoon Lee; Jaewoo Lee; Akram Alfantazi; Sung Oh Cho

doi:10.3390/nano11040838

Improvement of corrosion resistance of stainless steel welded joint using a nanostructured oxide layer

Jun Heo
, Sang Yoon Lee
, Jaewoo Lee
, Akram Alfantazi
, Sung Oh Cho

Chemical and Petroleum Engineering

Department of Industrial and Systems Engineering Korea Advanced Institute of Science and Technology

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

11 Scopus citations

Abstract

In this study, we fabricated a nanoporous oxide layer by anodization to improve corrosion resistance of type 304 stainless steel (SS) gas tungsten arc weld (GTAW). Subsequent heat treatment was performed to eliminate any existing fluorine in the nanoporous oxide layer. Uniform structures and compositions were analyzed with field emission scanning electron microscope (FESEM) and X-ray diffractometer (XRD) measurements. The corrosion resistance of the treated SS was evalu-ated by applying a potentiodynamic polarization (PDP) technique and electrochemical impedance spectroscopy (EIS). Surface morphologies of welded SS with and without treatment were examined to compare their corrosion behaviors. All results indicate that corrosion resistance was enhanced, making the treatment process highly promising.

Original language	British English
Article number	838
Journal	Nanomaterials
Volume	11
Issue number	4
DOIs	https://doi.org/10.3390/nano11040838
State	Published - Apr 2021

Keywords

Anodization
Corrosion resistance
Nanoporous oxide layer
Welded joint

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10.3390/nano11040838

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title = "Improvement of corrosion resistance of stainless steel welded joint using a nanostructured oxide layer",

abstract = "In this study, we fabricated a nanoporous oxide layer by anodization to improve corrosion resistance of type 304 stainless steel (SS) gas tungsten arc weld (GTAW). Subsequent heat treatment was performed to eliminate any existing fluorine in the nanoporous oxide layer. Uniform structures and compositions were analyzed with field emission scanning electron microscope (FESEM) and X-ray diffractometer (XRD) measurements. The corrosion resistance of the treated SS was evalu-ated by applying a potentiodynamic polarization (PDP) technique and electrochemical impedance spectroscopy (EIS). Surface morphologies of welded SS with and without treatment were examined to compare their corrosion behaviors. All results indicate that corrosion resistance was enhanced, making the treatment process highly promising.",

keywords = "Anodization, Corrosion resistance, Nanoporous oxide layer, Welded joint",

author = "Jun Heo and Lee, \{Sang Yoon\} and Jaewoo Lee and Akram Alfantazi and Cho, \{Sung Oh\}",

note = "Funding Information: Funding: This research was funded by the National Research Foundation of Korea (NRF) grant funded by the Korean Government, grant number NRF-2019M2D2A1A02058174. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = apr,

doi = "10.3390/nano11040838",

language = "British English",

volume = "11",

journal = "Nanomaterials",

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T1 - Improvement of corrosion resistance of stainless steel welded joint using a nanostructured oxide layer

AU - Heo, Jun

AU - Lee, Sang Yoon

AU - Lee, Jaewoo

AU - Alfantazi, Akram

AU - Cho, Sung Oh

N1 - Funding Information: Funding: This research was funded by the National Research Foundation of Korea (NRF) grant funded by the Korean Government, grant number NRF-2019M2D2A1A02058174. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2021/4

Y1 - 2021/4

N2 - In this study, we fabricated a nanoporous oxide layer by anodization to improve corrosion resistance of type 304 stainless steel (SS) gas tungsten arc weld (GTAW). Subsequent heat treatment was performed to eliminate any existing fluorine in the nanoporous oxide layer. Uniform structures and compositions were analyzed with field emission scanning electron microscope (FESEM) and X-ray diffractometer (XRD) measurements. The corrosion resistance of the treated SS was evalu-ated by applying a potentiodynamic polarization (PDP) technique and electrochemical impedance spectroscopy (EIS). Surface morphologies of welded SS with and without treatment were examined to compare their corrosion behaviors. All results indicate that corrosion resistance was enhanced, making the treatment process highly promising.

AB - In this study, we fabricated a nanoporous oxide layer by anodization to improve corrosion resistance of type 304 stainless steel (SS) gas tungsten arc weld (GTAW). Subsequent heat treatment was performed to eliminate any existing fluorine in the nanoporous oxide layer. Uniform structures and compositions were analyzed with field emission scanning electron microscope (FESEM) and X-ray diffractometer (XRD) measurements. The corrosion resistance of the treated SS was evalu-ated by applying a potentiodynamic polarization (PDP) technique and electrochemical impedance spectroscopy (EIS). Surface morphologies of welded SS with and without treatment were examined to compare their corrosion behaviors. All results indicate that corrosion resistance was enhanced, making the treatment process highly promising.

KW - Anodization

KW - Corrosion resistance

KW - Nanoporous oxide layer

KW - Welded joint

UR - https://www.scopus.com/pages/publications/85103046317

U2 - 10.3390/nano11040838

DO - 10.3390/nano11040838

M3 - Article

AN - SCOPUS:85103046317

SN - 2079-4991

VL - 11

JO - Nanomaterials

JF - Nanomaterials

IS - 4

M1 - 838

ER -

Improvement of corrosion resistance of stainless steel welded joint using a nanostructured oxide layer

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Keywords

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