Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/129777
DC FieldValueLanguage
dc.contributor.authorCraciun, Doina-
dc.contributor.authorLaszlo, Edwin A.-
dc.contributor.authorMîrza Roşca, Iulia C.-
dc.contributor.authorDorcioman, Gabriela-
dc.contributor.authorGeanta,Victoras-
dc.contributor.authorVoiculescu,Ionelia-
dc.contributor.authorCraciun, Gabriel-
dc.contributor.authorBadea, Liviu-
dc.contributor.authorCraciun,Valentin-
dc.date.accessioned2024-04-05T14:18:31Z-
dc.date.available2024-04-05T14:18:31Z-
dc.date.issued2024-
dc.identifier.issn1996-1944-
dc.identifier.otherScopus-
dc.identifier.otherWoS-
dc.identifier.urihttp://hdl.handle.net/10553/129777-
dc.description.abstractThe structure, composition and corrosion properties of thin films synthesized using the Pulsed Laser Deposition (PLD) technique starting from a three high entropy alloy (HEA) AlCoCrFeNix produced by vacuum arc remelting (VAR) method were investigated. The depositions were performed at room temperature on Si and mirror-like polished Ti substrates either under residual vacuum (low 10−7 mbar, films denoted HEA2, HEA6, and HEA10, which were grown from targets with Ni concentration molar ratio, x, equal to 0.4, 1.2, and 2.0, respectively) or under N2 (10−4 mbar, films denoted HEN2, HEN6, and HEN10 for the same Ni concentration molar ratios). The deposited films’ structures, investigated using Grazing Incidence X-ray Diffraction, showed the presence of face-centered cubic and body-centered cubic phases, while their surface morphology, investigated using scanning electron microscopy, exhibited a smooth surface with micrometer size droplets. The mass density and thickness were obtained from simulations of acquired X-ray reflectivity curves. The films’ elemental composition, estimated using the energy dispersion X-ray spectroscopy, was quite close to that of the targets used. X-ray Photoelectron Spectroscopy investigation showed that films deposited under a N2 atmosphere contained several percentages of N atoms in metallic nitride compounds. The electrochemical behavior of films under simulated body fluid (SBF) conditions was investigated by Open Circuit Potential (OCP) and Electrochemical Impedance Spectroscopy measurements. The measured OCP values increased over time, implying that a passive layer was formed on the surface of the films. It was observed that all films started to passivate in SBF solution, with the HEN6 film exhibiting the highest increase. The highest repassivation potential was exhibited by the same film, implying that it had the highest stability range of all analyzed films. Impedance measurements indicated high corrosion resistance values for HEA2, HEA6, and HEN6 samples. Much lower resistances were found for HEN10 and HEN2. Overall, HEN6 films exhibited the best corrosion behavior among the investigated films. It was noticed that for 24 h of immersion in SBF solution, this film was also a physical barrier to the corrosion process, not only a chemical one.-
dc.languageeng-
dc.relation.ispartofMaterials-
dc.sourceMaterials [EISSN 1996-1944], v. 17 (5), (Marzo 2024)-
dc.subject330309 Operaciones electroquímicas-
dc.subject221101 Aleaciones-
dc.subject.otherChemical And Physical Barrier-
dc.subject.otherEis-
dc.subject.otherElectrochemical And Corrosion Behavior-
dc.subject.otherHigh-Entropy Alloy (Hea)-
dc.subject.otherHigh-Entropy Nitride Alloy (Hen)-
dc.subject.otherOcp-
dc.subject.otherPulsed Laser Deposition-
dc.subject.otherRinger Solution-
dc.subject.otherThin Films-
dc.titleStructural Parameters and Behavior in Simulated Body Fluid of High Entropy Alloy Thin Films-
dc.typeinfo:eu-repo/semantics/Article-
dc.typeArticle-
dc.identifier.doi10.3390/ma17051162-
dc.identifier.scopus85187702018-
dc.identifier.isi001182880900001-
dc.contributor.orcid0000-0002-2696-0048-
dc.contributor.orcid0000-0003-0623-3318-
dc.contributor.orcid0000-0002-8323-9150-
dc.contributor.orcidNO DATA-
dc.contributor.orcid0000-0002-9065-3587-
dc.contributor.orcid0000-0002-7886-578X-
dc.contributor.orcidNO DATA-
dc.contributor.orcidNO DATA-
dc.contributor.authorscopusid7004302301-
dc.contributor.authorscopusid57221046653-
dc.contributor.authorscopusid57320856200-
dc.contributor.authorscopusid23003977200-
dc.contributor.authorscopusid6505814202-
dc.contributor.authorscopusid18435025300-
dc.contributor.authorscopusid57196546264-
dc.contributor.authorscopusid36992008200-
dc.contributor.authorscopusid7006591285-
dc.identifier.eissn1996-1944-
dc.description.lastpage12-
dc.identifier.issue5-
dc.description.firstpage1-
dc.relation.volume17-
dc.investigacionIngeniería y Arquitectura-
dc.type2Artículo-
dc.contributor.daisngid20410130-
dc.contributor.daisngid33005088-
dc.contributor.daisngid2163361-
dc.contributor.daisngid20955-
dc.contributor.daisngid56282379-
dc.contributor.daisngid1928402-
dc.contributor.daisngid2361524-
dc.contributor.daisngid40385484-
dc.contributor.daisngid15427285-
dc.description.numberofpages12-
dc.utils.revision-
dc.contributor.wosstandardWOS:Craciun, D-
dc.contributor.wosstandardWOS:Laszlo, EA-
dc.contributor.wosstandardWOS:Mirza-Rosca, JC-
dc.contributor.wosstandardWOS:Dorcioman, G-
dc.contributor.wosstandardWOS:Geanta, V-
dc.contributor.wosstandardWOS:Voiculescu, I-
dc.contributor.wosstandardWOS:Craciun, G-
dc.contributor.wosstandardWOS:Badea, L-
dc.contributor.wosstandardWOS:Craciun, V-
dc.date.coverdateMarzo 2024-
dc.identifier.ulpgc-
dc.contributor.buulpgcBU-ING-
dc.description.sjr0,563-
dc.description.jcr3,4-
dc.description.sjrqQ2-
dc.description.jcrqQ2-
dc.description.scieSCIE-
dc.description.miaricds10,6-
item.fulltextCon texto completo-
item.grantfulltextopen-
crisitem.author.deptGIR Nanomaterials and Corrosion-
crisitem.author.deptDepartamento de Ingeniería Mecánica-
crisitem.author.deptGIR Nanomaterials and Corrosion-
crisitem.author.deptGIR Nanomaterials and Corrosion-
crisitem.author.deptGIR Nanomaterials and Corrosion-
crisitem.author.orcid0000-0003-0623-3318-
crisitem.author.orcid0000-0003-1458-8653-
crisitem.author.parentorgDepartamento de Ingeniería Mecánica-
crisitem.author.parentorgDepartamento de Ingeniería Mecánica-
crisitem.author.parentorgDepartamento de Ingeniería Mecánica-
crisitem.author.parentorgDepartamento de Ingeniería Mecánica-
crisitem.author.fullNameMirza Rosca, Julia Claudia-
crisitem.author.fullNameGeanta, Victoras-
crisitem.author.fullNameVoiculescu, Ionelia-
crisitem.author.fullNameCraciun,Valentin-
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