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

LY Guo; SR Street; HB Mohammed-Ali; M Ghahari; N Mi; S Glanvill; A Du Plessis; C Reinhard; T Rayment; AJ Davenport

doi:10.1016/j.corsci.2019.01.033

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

LY Guo, SR Street, HB Mohammed-Ali, M Ghahari, N Mi, S Glanvill, A Du Plessis, C Reinhard, T Rayment, AJ Davenport

Diamond Light Source Ltd

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

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 MgCl₂droplets 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
Externally published	Yes

Keywords

atmospheric pitting corrosion
stainless steel
wet-dry cycling
X-ray microtomography

Access to Document

10.1016/j.corsci.2019.01.033

Cite this

@article{b97372852f4546a481f035764cd55440,

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 = "LY Guo and SR Street and HB Mohammed-Ali and M Ghahari and N Mi and S Glanvill and {Du Plessis}, A and C Reinhard and T Rayment and AJ Davenport",

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 BV",

}

TY - JOUR

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

AU - Guo, LY

AU - Street, SR

AU - Mohammed-Ali, HB

AU - Ghahari, M

AU - Mi, N

AU - Glanvill, S

AU - Du Plessis, A

AU - Reinhard, C

AU - Rayment, T

AU - Davenport, AJ

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 - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=pure_starter&SrcAuth=WosAPI&KeyUT=WOS:000462108000011&DestLinkType=FullRecord&DestApp=WOS

U2 - 10.1016/j.corsci.2019.01.033

DO - 10.1016/j.corsci.2019.01.033

M3 - Article

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

Access to Document

Other files and links

Fingerprint

Cite this