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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Davenport, Alison J.
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (37/37 displayed)
- 2022Influence of microdefects in rust layer of weathering steel on corrosion resistance from 3D observation by synchrotron X-ray micro tomographycitations
- 2022Temperature-Dependence Corrosion Behavior of Ti6Al4V in the Presence of HClcitations
- 2019The influence of partial replacement of Cu with Ga on the corrosion behavior of Ti40Zr10Cu36PD14 metallic glassescitations
- 2019Use of thermally sprayed aluminium (TSA) coatings to protect offshore structures in submerged and splash zonescitations
- 2018Time-dependent Enhanced Corrosion of Ti6Al4V in the Presence of H2O2 and Albumincitations
- 2018Operando Assessment of Galvanic Corrosion Between Al-Zn-Mg-Cu Alloy and a Stainless Steel Fastener Using X-ray Tomographycitations
- 2018In situ synchrotron X-ray diffraction characterization of corrosion products of a Ti-based metallic glass for implant applicationscitations
- 2015A synergistic effect of albumin and H2O2 accelerates corrosion of Ti6Al4Vcitations
- 2015Synchrotron X-ray radiography studies of pitting corrosion of stainless steel: Extraction of pit propagation parameterscitations
- 2015The effect of nitrate on salt layers in pitting corrosion of 304L stainless steelcitations
- 2015Determination of cathodic and anodic charge from operando x-ray tomography observation of galvanic corrosion of aluminum alloy 7050-T7451 and 304 stainless steel in a simulated fastenercitations
- 2015A synergistic effect of albumin and H 2 O 2 accelerates corrosion of Ti6Al4Vcitations
- 2015Operando observation of galvanic corrosion between aluminum alloy 7050-T7451 and 304 stainless steel in a simulated fastener arrangement using x-ray tomographycitations
- 2015Lipopolysaccharide inhibits or accelerates biomedical titanium corrosion depending on environmental aciditycitations
- 2013Interfacial phenomena during salt layer formation under high rate dissolution conditionscitations
- 2012Pitting corrosion of stainless steel
- 2011Corrosion behaviour of banded microstructure within nugget of friction stir welds in AA2024-T351citations
- 2011In situ synchrotron X-ray micro-tomography study of pitting corrosion in stainless steelcitations
- 2011Pitting corrosion of stainless steel: measuring and modelling pit propagation in support of damage prediction for radioactive waste containerscitations
- 2010The effect of environment on intergranular corrosion kinetics in aircraft aluminium alloys
- 2010Oral Keratinocyte Responses to Nickel-based Dental Casting Alloys In Vitrocitations
- 2010Microstructure and corrosion of Pd-modified Ti alloys produced by powder metallurgycitations
- 2010In situ X-ray tomography of intergranular corrosion of 2024 and 7050 aluminium alloyscitations
- 2010A method to detect retained gas during AC electrograining using in-situ small angle X-ray scatteringcitations
- 2008In situ monitoring of corrosion processes within the bulk of AlMgSi alloys using X-ray microtomographycitations
- 2008In situ monitoring of corrosion processes within the bulk of AlMgSi alloys using X-ray microtomographycitations
- 2008Effect of equal channel angular extrusion on corrosion behaviour of Al-Mn alloycitations
- 2007Synchrotron X-ray microtomography study of the role of Y in corrosion of magnesium alloy WE43citations
- 2007Corrosion of nickel-based dental casting alloyscitations
- 2007Enhancement of localized corrosion in aluminum alloys by weak acids
- 2006Corrosion of a dissimiliar friction stir weld joining aluminium alloys AA2024 and AA7010citations
- 2006The effect of borate on cerium film formationcitations
- 2006Corrosion and protection of friction stir welds in aluminium alloys
- 2006X-ray microtomography studies of localised corrosion and transitions to stress corrosion crackingcitations
- 2004Electrochemical behavior of the active surface layer on rolled aluminium alloy sheetcitations
- 2001In situ synchrotron X-ray microprobe studies of passivation thresholds in Fe-Cr alloyscitations
- 2000Structure of the passive film that forms on iron in aqueous environmentscitations
Places of action
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article
Corrosion of nickel-based dental casting alloys
Abstract
Objectives. To study the microstructure, corrosion behaviour and cell culture response of two nickel-based dental casting alloys before and after a heat treatment to simulate porcelain firing. Methods. The microstructure was studied using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). Corrosion behaviour was evaluated by electrochemical measurements in artificial saliva at different values of pH in the presence of a crevice. 3T3 mouse fibroblasts were exposed indirectly to alloy specimens and the number of viable cells counted after 3 and 6 days compared to a control culture. Results. Small changes in microstructure were observed after heat treatment but had a negligible effect on the corrosion properties in the conditions tested. The alloy with a lower bulk level of Cr (12.6 wt.%) showed lower corrosion resistance, indicated by an increased passive current density and this stability was greatly reduced at pH 2.5, where crevice corrosion was observed. Selective dissolution occurred at regions within the microstructure containing lower levels of Cr and Mo. Furthermore, the proliferation of 3T3 mouse fibroblasts was reduced (p <0.05) when exposed indirectly to this alloy. The alloy containing a higher level of Cr (25 wt.%) showed superior corrosion resistance, which was associated with a more uniform distribution of Cr in the alloy microstructure. Significance. The presence of crevices combined with an inhomogeneous distribution of Cr in the microstructure can lead to accelerated corrosion of Ni-based alloys with lower Cr contents. This effect can be avoided by increasing the Cr content of the alloy. (C) 2006 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.