Corrosion behaviour of nanocomposite TiSiN coatings on steel substrates

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dc.contributor.authorAhmed, M.
dc.contributor.authorMunroe, P.
dc.contributor.authorJiang, Z.
dc.contributor.authorZhao, X.
dc.contributor.authorRickard, W.
dc.contributor.authorZhou, Z.
dc.contributor.authorLi, L.
dc.contributor.authorXie, Z.
dc.date.issued2011
dc.description.abstractNanocomposite TiSiN coatings were deposited on tool steels. Detailed mechanisms that govern the corrosion of these coated steels were revealed, following immersion tests in a 70% nitric acid solution. Pitting originated preferentially from coating defect sites and expanded with increasing immersion time. Both Young's modulus and hardness measured by nanoindentation decreased as the corrosion damage intensified. A thin oxide layer formed from the thermal annealing of the as-deposited samples at 900 °C was found to be effective against corrosive attack. In addition, compressive residual stress was noted to suppress the propagation of corrosion-induced cracks. The role of residual stress in controlling the corrosion resistance of these ceramic-coated steels is clarified by finite element analysis. © 2011 Elsevier Ltd.
dc.description.statementofresponsibilityMohammad Shoeb Ahmed, Paul Munroe, Zhong-Tao Jiang, Xiaoli Zhao, William Rickard, Zhi-feng Zhou, Lawrence Kwok Yan Li, Zonghan Xie
dc.identifier.citationCorrosion Science, 2011; 53(11):3678-3687
dc.identifier.doi10.1016/j.corsci.2011.07.011
dc.identifier.issn0010-938X
dc.identifier.issn1879-0496
dc.identifier.urihttp://hdl.handle.net/2440/75778
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.rightsCopyright © 2011 Elsevier Ltd. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.corsci.2011.07.011
dc.subjectCeramic
dc.subjectModelling studies
dc.subjectSEM
dc.subjectXPS
dc.subjectAcid corrosion
dc.subjectPitting corrosion
dc.titleCorrosion behaviour of nanocomposite TiSiN coatings on steel substrates
dc.typeJournal article
pubs.publication-statusPublished

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