The effect of relative humidity change on atmospheric pitting corrosion of stainless steel 304L

Liya Guo; Steven R. Street; Haval B. Mohammed-Ali; Majid Ghahari; Na Mi; Sarah Glanvill; Andrew Du Plessis; Christina Reinhard; Trevor Rayment; Alison J. Davenport

doi:10.1016/j.corsci.2019.01.033

The effect of relative humidity change on atmospheric pitting corrosion of stainless steel 304L

Liya Guo^*, Steven R. Street, Haval B. Mohammed-Ali, Majid Ghahari, Na Mi, Sarah Glanvill, Andrew Du Plessis, Christina Reinhard, Trevor Rayment, Alison J. Davenport

^*Corresponding author for this work

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

9 Citations (Scopus)

333 Downloads (Pure)

Abstract

Relative humidity fluctuations tend to influence atmospheric corrosion under natural exposure conditions. In this study, the effect of change in relative humidity on pitting corrosion of stainless steel under MgCl₂ droplets is investigated with in situ X-ray microtomography and optical microscopy. Relative humidity fluctuations (between 33% RH and 85% RH or between 33% RH and 12% RH) tend to lead to nucleation of many small pits whereas continuous exposure at constant 33% RH leads to growth of a single pit. This indicates that natural fluctuations in relative humidity might be beneficial for preventing the growth of a large penetrating pit.

Original language	English
Pages (from-to)	110-120
Number of pages	11
Journal	Corrosion Science
Volume	150
Early online date	30 Jan 2019
DOIs	https://doi.org/10.1016/j.corsci.2019.01.033
Publication status	Published - 15 Apr 2019

Keywords

Atmospheric pitting corrosion
Stainless steel
Wet-dry cycling
X-ray microtomography

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

Access to Document

10.1016/j.corsci.2019.01.033Licence: None: All rights reserved

Guo_The_effect_of_relative_humidity_Corrosion_Science_2019
Checked for eligibility 14/02/2019 Published in Corrosion Science https://doi.org/10.1016/j.corsci.2019.01.033
Accepted author manuscript, 844 KBLicence: Creative Commons: Attribution-NonCommercial-NoDerivs (CC BY-NC-ND)

Cite this

@article{2cf8bcba93d643df9639df43af7ed947,

title = "The effect of relative humidity change on atmospheric pitting corrosion of stainless steel 304L",

abstract = "Relative humidity fluctuations tend to influence atmospheric corrosion under natural exposure conditions. In this study, the effect of change in relative humidity on pitting corrosion of stainless steel under MgCl2 droplets is investigated with in situ X-ray microtomography and optical microscopy. Relative humidity fluctuations (between 33% RH and 85% RH or between 33% RH and 12% RH) tend to lead to nucleation of many small pits whereas continuous exposure at constant 33% RH leads to growth of a single pit. This indicates that natural fluctuations in relative humidity might be beneficial for preventing the growth of a large penetrating pit.",

keywords = "Atmospheric pitting corrosion, Stainless steel, Wet-dry cycling, X-ray microtomography",

author = "Liya Guo and Street, {Steven R.} and Mohammed-Ali, {Haval B.} and Majid Ghahari and Na Mi and Sarah Glanvill and {Du Plessis}, Andrew and Christina Reinhard and Trevor Rayment and Davenport, {Alison J.}",

year = "2019",

month = apr,

day = "15",

doi = "10.1016/j.corsci.2019.01.033",

language = "English",

volume = "150",

pages = "110--120",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier",

}

TY - JOUR

T1 - The effect of relative humidity change on atmospheric pitting corrosion of stainless steel 304L

AU - Guo, Liya

AU - Street, Steven R.

AU - Mohammed-Ali, Haval B.

AU - Ghahari, Majid

AU - Mi, Na

AU - Glanvill, Sarah

AU - Du Plessis, Andrew

AU - Reinhard, Christina

AU - Rayment, Trevor

AU - Davenport, Alison J.

PY - 2019/4/15

Y1 - 2019/4/15

N2 - Relative humidity fluctuations tend to influence atmospheric corrosion under natural exposure conditions. In this study, the effect of change in relative humidity on pitting corrosion of stainless steel under MgCl2 droplets is investigated with in situ X-ray microtomography and optical microscopy. Relative humidity fluctuations (between 33% RH and 85% RH or between 33% RH and 12% RH) tend to lead to nucleation of many small pits whereas continuous exposure at constant 33% RH leads to growth of a single pit. This indicates that natural fluctuations in relative humidity might be beneficial for preventing the growth of a large penetrating pit.

AB - Relative humidity fluctuations tend to influence atmospheric corrosion under natural exposure conditions. In this study, the effect of change in relative humidity on pitting corrosion of stainless steel under MgCl2 droplets is investigated with in situ X-ray microtomography and optical microscopy. Relative humidity fluctuations (between 33% RH and 85% RH or between 33% RH and 12% RH) tend to lead to nucleation of many small pits whereas continuous exposure at constant 33% RH leads to growth of a single pit. This indicates that natural fluctuations in relative humidity might be beneficial for preventing the growth of a large penetrating pit.

KW - Atmospheric pitting corrosion

KW - Stainless steel

KW - Wet-dry cycling

KW - X-ray microtomography

UR - http://www.scopus.com/inward/record.url?scp=85060883920&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2019.01.033

DO - 10.1016/j.corsci.2019.01.033

M3 - Article

AN - SCOPUS:85060883920

SN - 0010-938X

VL - 150

SP - 110

EP - 120

JO - Corrosion Science

JF - Corrosion Science

ER -

The effect of relative humidity change on atmospheric pitting corrosion of stainless steel 304L

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this