Exact calculation of corrosion rates by the weight-loss method

Corrosion is an important problem that engineers and scientists must overcome to avoid the collapse of structures, chemical processing plants, and metallic objects, which can lead to not only economic loss but also environmental and human losses. One of the simplest and most widely used methods to q...

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Main Authors: Francisco Malaret, Xin-She Yang
Format: Article
Language:English
Published: Cambridge University Press 2022-01-01
Series:Experimental Results
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2516712X22000053/type/journal_article
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author Francisco Malaret
Xin-She Yang
author_facet Francisco Malaret
Xin-She Yang
author_sort Francisco Malaret
collection DOAJ
description Corrosion is an important problem that engineers and scientists must overcome to avoid the collapse of structures, chemical processing plants, and metallic objects, which can lead to not only economic loss but also environmental and human losses. One of the simplest and most widely used methods to quantify corrosion rates (CRs) is the immersion test. The usual approach that has been used to date, to quantify the CR by this method, is to assume that the initial surface area of the corroding object remains constant over time. It is shown that such approximations underestimate the true CR and that they may lead to significant errors. A formula to calculate the CR considering changes in the area is presented in this work. The formula herein can be used to accurately quantify the CR by the immersion test and improve the quality of experimental data and the analysis and modeling of corrosion phenomena.
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spelling doaj.art-35e7172f5dc14ba98791fa4d3332fbc92023-03-09T12:34:17ZengCambridge University PressExperimental Results2516-712X2022-01-01310.1017/exp.2022.5Exact calculation of corrosion rates by the weight-loss methodFrancisco Malaret0https://orcid.org/0000-0002-5717-3629Xin-She YangDepartment of Chemical Engineering, Imperial College London, London, United Kingdom Research and Development Centre, Nanomox Ltd., London, United KingdomCorrosion is an important problem that engineers and scientists must overcome to avoid the collapse of structures, chemical processing plants, and metallic objects, which can lead to not only economic loss but also environmental and human losses. One of the simplest and most widely used methods to quantify corrosion rates (CRs) is the immersion test. The usual approach that has been used to date, to quantify the CR by this method, is to assume that the initial surface area of the corroding object remains constant over time. It is shown that such approximations underestimate the true CR and that they may lead to significant errors. A formula to calculate the CR considering changes in the area is presented in this work. The formula herein can be used to accurately quantify the CR by the immersion test and improve the quality of experimental data and the analysis and modeling of corrosion phenomena.https://www.cambridge.org/core/product/identifier/S2516712X22000053/type/journal_articlecorrosion rate quantificationimmersion testmodeling studiesweight loss
spellingShingle Francisco Malaret
Xin-She Yang
Exact calculation of corrosion rates by the weight-loss method
Experimental Results
corrosion rate quantification
immersion test
modeling studies
weight loss
title Exact calculation of corrosion rates by the weight-loss method
title_full Exact calculation of corrosion rates by the weight-loss method
title_fullStr Exact calculation of corrosion rates by the weight-loss method
title_full_unstemmed Exact calculation of corrosion rates by the weight-loss method
title_short Exact calculation of corrosion rates by the weight-loss method
title_sort exact calculation of corrosion rates by the weight loss method
topic corrosion rate quantification
immersion test
modeling studies
weight loss
url https://www.cambridge.org/core/product/identifier/S2516712X22000053/type/journal_article
work_keys_str_mv AT franciscomalaret exactcalculationofcorrosionratesbytheweightlossmethod
AT xinsheyang exactcalculationofcorrosionratesbytheweightlossmethod