Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/48966
Campo DC Valoridioma
dc.contributor.authorVasilescu, Ecaterina
dc.contributor.authorDrob, Paula
dc.contributor.authorPopa, Mihai V.
dc.contributor.authorMîrza-Roşca, Julia
dc.contributor.authorSantana Lopez, Agustin
dc.contributor.authorAnghel, Maria
dc.date.accessioned2018-11-24T02:38:34Z-
dc.date.available2018-11-24T02:38:34Z-
dc.date.issued2001
dc.identifier.issn0035-3930
dc.identifier.urihttp://hdl.handle.net/10553/48966-
dc.description.abstractThe paper presents the anticorrosion behaviour of two new ternary titanium (Ti-10Mo-10Al, Ti-15Mo-5A1) alloys in comparison with the base metal in the diluted and concentrated sulphuric acid solutions at elevated temperatures. The electrochemical impedance spectroscopy, as well as potentiostatic and potentiodynamic techniques have been used to characterise the anticorrosion behaviour. The effect of the solution concentration, temperature, influence of the alloying elements and equivalent circuit has been investigated. Ternary titanium alloys achieve more positive corrosion potentials than titanium. The anodic curves exhibit two current peaks for the critical passivation currents which correspond, respectively, to the same two critical passivation potentials: at the first critical potential the Ti2O3 oxide is formed whereas at the second critical potential this oxide is converted to the compact, protective, TiO2 oxide. The decrease of the critical passivation currents with the molybdenum content in the alloy is due to the superficial accumulation of the beta phase, richer in Mo, which affects cathodically these currents. The increase of current along the passive region with aluminium content is supposed to appear because of the aluminium dissolution in acid medium. Both solution concentration and temperature generate the increase of the critical passivation currents and passive currents. An equivalent circuit with three time constants was fitted.
dc.publisher0035-3930
dc.relation.ispartofRevue Roumaine de Chimie
dc.sourceRevue Roumaine de Chimie[ISSN 0035-3930],v. 46, p. 975-982
dc.subject.otherPassivation
dc.subject.otherMolybdenum
dc.subject.otherFilms
dc.titleCorrosion protection behaviour of some ternary titanium alloys in sulphuric acid solutions
dc.typeinfo:eu-repo/semantics/Articlees
dc.typeArticlees
dc.identifier.scopus0042868379
dc.identifier.isi000177990100006
dc.contributor.authorscopusid7003914522
dc.contributor.authorscopusid6701624016
dc.contributor.authorscopusid7102949299
dc.contributor.authorscopusid6602582214
dc.contributor.authorscopusid6505861276
dc.contributor.authorscopusid7004588043
dc.description.lastpage982
dc.description.firstpage975
dc.relation.volume46
dc.type2Artículoes
dc.contributor.daisngid222978
dc.contributor.daisngid281703
dc.contributor.daisngid227624
dc.contributor.daisngid6895390
dc.contributor.daisngid2102374
dc.contributor.daisngid494887
dc.contributor.wosstandardWOS:Vasilescu, E
dc.contributor.wosstandardWOS:Drob, P
dc.contributor.wosstandardWOS:Popa, MV
dc.contributor.wosstandardWOS:Mirza-Rosca, J
dc.contributor.wosstandardWOS:Lopez, AS
dc.contributor.wosstandardWOS:Anghel, M
dc.date.coverdateEnero 2001
dc.identifier.ulpgces
dc.description.jcr0,229
dc.description.jcrqQ4
dc.description.scieSCIE
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.author.deptGIR Nanomaterials and Corrosion-
crisitem.author.deptDepartamento de Ingeniería Mecánica-
crisitem.author.orcid0000-0003-0623-3318-
crisitem.author.parentorgDepartamento de Ingeniería Mecánica-
crisitem.author.fullNameMirza Rosca, Julia Claudia-
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