Stress Corrosion Cracking of Austenitic Stainless Steels in Potentiostatically Controlled Chloride Environments at Ambient Temperature

dc.contributor.authorAhmed, Ismaila Idowu
dc.contributor.authorYahaya, Taiwo
dc.contributor.authorAdebisi, Jeleel Adekunle
dc.contributor.authorAremu, Ishaq Na'Allah
dc.contributor.authorAlabi, Abdul Ganiyu Funsho
dc.contributor.authorLyon, Stuart B.
dc.date.accessioned2021-05-07T10:17:45Z
dc.date.available2021-05-07T10:17:45Z
dc.date.issued2015-11-04
dc.description.abstractIn the earlier study carried out to assess the effect of applied potentials on stress corrosion cracking of Austenitic Stainless Steels (ASS), Type 304L in a potentiostatically controlled chloride environment at ambient temperature, the assessment of cracks in failed specimen was limited to optical microscope. In this present study, Scanning Electron Microscope (SEM) was used in addition to optical microscope to gain a better understanding of the Stress Corrosion Cracking (SCC) mechanism in the failed specimen. Stress corrosion cracking tests were carried out on annealed ASS using a Slow Strain Rate Test (SSRT) technique in sodium chloride solution acidified with hydrochloric acid at ambient temperature. Post-mortem assessments of failed specimens were carried out using both optical and SEM. The study showed that plastic elongation, ultimate tensile strength and time to failure decrease as the applied potential increases during the slow strain rate test. The study showed that immunity of ASS to chloride SCC was improved when the electrochemical potential was maintained in the primary passive potential range. Post-mortem assessment of failed specimens showed evidences of SCC and ductile failure on the fracture surface. The cross sectional analysis of the failed samples showed cracks that were predominantly transgranular stress corrosion cracks.en_US
dc.identifier.citationAhmed, I. I., Yahaya, T., Adebisi, J. A., Aremu, I. N., Alabi, A. G. F., & Lyon, S. B. (2015). Stress Corrosion Cracking of Austenitic Stainless Steels in Potentiostatically Controlled Chloride Environments at Ambient Temperature. Annals of the Faculty of Engineering Hunedoara - International Journal of Engineering, Vol. 13 (Issue 4), 151-158.en_US
dc.identifier.urihttp://annals.fih.upt.ro/pdf-full/2015/ANNALS-2015-4-24.pdf
dc.identifier.urihttps://uilspace.unilorin.edu.ng/handle/20.500.12484/5173
dc.language.isoenen_US
dc.publisherUniversitatea Politehnica Timisoara (UPT), Romaniaen_US
dc.subjectFailureen_US
dc.subjectPassive filmen_US
dc.subjectStress corrosion cracken_US
dc.subjectStainless Steelsen_US
dc.subjectSEMen_US
dc.titleStress Corrosion Cracking of Austenitic Stainless Steels in Potentiostatically Controlled Chloride Environments at Ambient Temperatureen_US
dc.title.alternativeAnnals of the Faculty of Engineering Hunedoara - International Journal of Engineeringen_US
dc.typeArticleen_US

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