Dissertations / Theses on the topic 'Metallic coatings; Corrosion protection'
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Paritong, Hilke. "Development of corrosion resistant niobium-based PVD coatings." Thesis, Sheffield Hallam University, 2000. http://shura.shu.ac.uk/20185/.
Full textLawal, Josephine. "Physical vapour deposition of aluminium-rich nanostructured/amorphous metallic coatings for wear and corrosion protection." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/18364/.
Full textThurber, Casey Ray. "Electrodeposited Metal Matrix Composites for Enhanced Corrosion Protection and Mechanical Properties." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849736/.
Full textDay, Kent Allen. "The use of thin polymeric coatings to prevent fretting corrosion and metallic contact in steel-on-steel systems." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/76040.
Full textMaster of Science
Saillard, Audric. "Modeling and simulation of stress-induced non-uniform oxide scale growth during high-temperature oxidation of metallic alloys." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33898.
Full textCrossen, Jonathan David. "Adhesion of organic coatings and corrosion protection." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361892.
Full textLee, David Tsu-Long. "Behaviour of corrosion-protection coatings in light alloys." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:bfbcec97-5f42-4eb3-aaec-ba5443e953ba.
Full textZHANG, CHENG. "PIGMENTED POLYURETHANE/POLYSILOXANE HYBRID COATINGS FOR CORROSION PROTECTION." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1495381409246105.
Full textBingham, Ruth. "Corrosion protection and self-healing in nanocomposite coatings." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-and-selfhealing-in-nanocomposite-coatings(d1419ee3-a028-401a-80c2-2151f7f1f633).html.
Full textYasakau, Kiryl. "Active corrosion protection of AA2024 by sol-gel coatings with corrosion inhibitors." Doctoral thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/3724.
Full textA indústria aeronáutica utiliza ligas de alumínio de alta resistência para o fabrico dos elementos estruturais dos aviões. As ligas usadas possuem excelentes propriedades mecânicas mas apresentam simultaneamente uma grande tendência para a corrosão. Por esta razão essas ligas necessitam de protecção anticorrosiva eficaz para poderem ser utilizadas com segurança. Até à data, os sistemas anticorrosivos mais eficazes para ligas de alumínio contêm crómio hexavalente na sua composição, sejam pré-tratamentos, camadas de conversão ou pigmentos anticorrosivos. O reconhecimento dos efeitos carcinogénicos do crómio hexavalente levou ao aparecimento de legislação banindo o uso desta forma de crómio pela indústria. Esta decisão trouxe a necessidade de encontrar alternativas ambientalmente inócuas mas igualmente eficazes. O principal objectivo do presente trabalho é o desenvolvimento de prétratamentos anticorrosivos activos para a liga de alumínio 2024, baseados em revestimentos híbridos produzidos pelo método sol-gel. Estes revestimentos deverão possuir boa aderência ao substrato metálico, boas propriedades barreira e capacidade anticorrosiva activa. A protecção activa pode ser alcançada através da incorporação de inibidores anticorrosivos no prétratamento. O objectivo foi atingido através de uma sucessão de etapas. Primeiro investigou-se em detalhe a corrosão localizada (por picada) da liga de alumínio 2024. Os resultados obtidos permitiram uma melhor compreensão da susceptibilidade desta liga a processos de corrosão localizada. Estudaram-se também vários possíveis inibidores de corrosão usando técnicas electroquímicas e microestruturais. Numa segunda etapa desenvolveram-se revestimentos anticorrosivos híbridos orgânico-inorgânico baseados no método sol-gel. Compostos derivados de titania e zirconia foram combinados com siloxanos organofuncionais a fim de obter-se boa aderência entre o revestimento e o substrato metálico assim como boas propriedades barreira. Testes industriais mostraram que estes novos revestimentos são compatíveis com os esquemas de pintura convencionais actualmente em uso. A estabilidade e o prazo de validade das formulações foram optimizados modificando a temperatura de armazenamento e a quantidade de água usada durante a síntese. As formulações sol-gel foram dopadas com os inibidores seleccionados durante a primeira etapa e as propriedades anticorrosivas passivas e activas dos revestimentos obtidos foram estudadas numa terceira etapa do trabalho. Os resultados comprovam a influência dos inibidores nas propriedades anticorrosivas dos revestimentos sol-gel. Em alguns casos a acção activa dos inibidores combinou-se com a protecção passiva dada pelo revestimento mas noutros casos terá ocorrido interacção química entre o inibidor e a matriz de sol-gel, de onde resultou a perda de propriedades protectoras do sistema combinado. Atendendo aos problemas provocados pela adição directa dos inibidores na formulação sol-gel procurou-se, numa quarta etapa, formas alternativas de incorporação. Na primeira, produziu-se uma camada de titania nanoporosa na superfície da liga metálica que serviu de reservatório para os inibidores. O revestimento sol-gel foi aplicado por cima da camada nanoporosa. Os inibidores armazenados nos poros actuam quando o substrato fica exposto ao ambiente agressivo. Numa segunda, os inibidores foram armazenados em nano-reservatórios de sílica ou em nanoargilas (halloysite), os quais foram revestidos por polielectrólitos montados camada a camada. A terceira alternativa consistiu no uso de nano-fios de molibdato de cério amorfo como inibidores anticorrosivos nanoparticulados. Os nano-reservatórios foram incorporados durante a síntese do sol-gel. Qualquer das abordagens permitiu eliminar o efeito negativo do inibidor sobre a estabilidade da matriz do sol-gel. Os revestimentos sol-gel desenvolvidos neste trabalho apresentaram protecção anticorrosiva activa e capacidade de auto-reparação. Os resultados obtidos mostraram o elevado potencial destes revestimentos para a protecção anticorrosiva da liga de alumínio 2024.
The aerospace industry employs high strength aluminum alloys as a constructional material for aircrafts. Aluminum alloys possess advanced mechanical requirements, though suffer from corrosion. Therefore, corrosion protection is always used for aluminum alloys. Up to now the most effective corrosion protection systems include chromium (VI) as the main constituent of pretreatments and corrosion inhibitive pigments. However, the chromates are strongly carcinogenic and the present health regulations banned the use of Cr (VI) containing materials in industry. Consequently, there is a need for environmentally safe corrosion protection systems. The main objective of the present work is the development of active anticorrosion pre-treatments for 2024 aluminum alloy on the basis of hybrid sol-gel layers. The effective corrosion pre-treatment should confer adequate adhesion together with good barrier properties and active corrosion protection ability. The active corrosion protection can be achieved by introducing the corrosion inhibitors in the pre-treatment. Successful fulfilment of the main objective required accomplishing of different stages of the work. At first the localized corrosion of AA2024 was investigated in detail. The obtained results provide better understanding of the intimate aspects of the corrosion susceptibility of AA2024. Different prospective corrosion inhibitors were investigated using electrochemical and microstructural methods. At the second stage the development of hybrid sol-gel coatings was performed. Titania and zirconia based derivatives were combined with organofunctional silanes in order to provide the enhanced adhesion between the metal and the coating and to confer good barrier properties. Industrial tests show that the developed sol-gel coatings are compatible with common organic protection systems. The stability and life time of the sol-gel formulations were also optimized by changing the storage temperature and the amount of water during the synthesis. Sol-gel systems were doped with the selected corrosion inhibitors and studied from the point of view of passive and active corrosion protective properties at the third stage of the work. The results demonstrate the influence of the inhibitive additives on the corrosion performance of the sol-gel coatings. Some inhibitors can provide active corrosion protection in combination with the sol-gel coating, but some chemically interact with the sol-gel matrix resulting in failure of the protective properties of coatings. New approaches of inhibitor incorporation and delivery were used in the fourth stage of the work due to problems associated with the direct introduction of inhibitors in the sol-gels. A nanoporous titania-based pre-layer applied directly to the alloy was employed for storage and release of inhibitors. Nanocontainers of corrosion inhibitors based on silica and halloysite nanoclay with Layer-by- Layer assembled polyelectrolyte shells were used in the second approach. Amorphous cerium molybdate nanowires have been used as corrosion inhibitor nanoparticles in the third approach. During the sol-gel synthesis these nanocontainers were added to impart active corrosion protective properties of the sol-gel coatings. Using these approaches the negative effect of inhibitor on the sol-gel matrix stability was eliminated. The developed sol-gel pretreatments demonstrate important active corrosion protection and self-healing ability. The obtained results show high potential of the developed hybrid sol-gel pretreatment doped with corrosion inhibitors for the corrosion protection of AA2024.
FCT; FSE - SFRH/BD/25469/2005
Balaskas, Andronikos. "Corrosion protection by encapsulated inhibitors." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-by-encapsulated-inhibitors(6295df0b-7ae9-4e8f-957b-2f9468740cb8).html.
Full textEjenstam, Lina. "Hydrophobic and superhydrophobic coatings for corrosion protection of steel." Doctoral thesis, KTH, Yt- och korrosionsvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-175405.
Full textEftersom metaller, och då särskilt stål, är viktigta konstruktionsmaterial i vårt moderna samhälle är korrosionsskydd av stor betydelse, både för att garantera säkerhet och för att minska kostnader som uppkommer i samband med korrosion. Tidigare har sexvärt krom och andra skadliga ämnen använts för att på ett effektivt sätt skydda stål från korrosion, men efter att deras användning kraftigt reglerades runt år 2000 har ännu ingen beläggning utvecklats som helt kan ersätta krombeläggningarna med avseende på funktion.I denna avhandling har hydrofoba och superhydrofoba ytbeläggningar och deras möjliga applikation som en del av ett korrosionsskyddande beläggningssystem studerats. Eftersom korrosionsmekanismen är beroende av närvaron av vatten, är användandet av en superhydrofob beläggning för att fördröja transporten av vatten till den underliggande metallytan intuitiv. De korrosionsskyddande egenskaperna hos superhydrofoba ytbeläggningar utvärderades här främst med hjälp av kontaktvinkelmätningar och elektrokemisk utvärdering i korrosiv lösning bestående av 3 vikts% NaCl i vatten.Först undersöktes skillnaden i korrosionsskydd som uppnås vid användandet av ytbeläggningar med olika hydrofoba vätningsregimer med hjälp av ett modellsystem bestående av ett alkylketendimer vax. Det konstaterades att superhydrofobicitet i Lotusregimen är överlägset bättre än de andra hydrofoba vätningsregimerna, i alla fall när man ser till relativt korta exponeringstider, typiskt mindre än tio dagar. Detta beror på att den kontinuerliga luftfilm som kan bildas på en sådan typ av superhydrofob yta kan minska transporten av elektrolyt (som innehåller korrosiva joner) till metallytan till den grad att den elektriska kretsen bryts. Eftersom korrosion inte kan ske utan en sluten elektrisk krets är detta ett mycket effektivt sätt att förhindra korrosion från att ske.Ett luftskikt på en superhydrofob yta nedsänkt i vatten är dock inte stabilt under lång tid. För att undersöka möjligheten till korrosionsskydd under längre tid med hjälp av hydrofoba beläggningar utvecklades en hydrofob ytbeläggning bestående av polydimetylsiloxan och hydrofoba nanopartiklar av kiseldioxid. Detta system visade en förbättring av korrosionsskyddet vid ökat partikelinnehåll upp till den koncentration (40 wt%) där i stället sprickbildning i ytbeläggningen observerades. Från detta system kunde slutsatsen dras att matrisens och partiklarnasvihydrofobicitet i kombination med den längre diffusionsvägen som partiklarna orsakade förbättrade korrosionsskyddet av den underliggande metallen.För att ytterligare förstå hur hydrofobicitet och partikeltillsatser påverkar en ytbeläggnings korrosionsskyddande egenskaper har dessutom ett treskikts kompositbeläggningssystem utvecklats. Genom att använda detta beläggningssystem, som består av en basbeläggning av polyesterakrylat, ett lager TiO2-partiklar (med en diameter på <100 nm) slutligen belagt med ett tunt ytskikt bestående av hexametyldisiloxan så kunde slutsatsen dras att både en hydrofob matris och partiklar behövs för att nå en markant förbättring av ytbeläggningens korrosionsskyddande egenskaper.
QC 20151015
Gopalakrishna, Jayashri Sham. "Corrosion protection of advanced surface coatings for decorative applications." Swinburne Research Bank, 2008. http://hdl.handle.net/1959.3/35042.
Full textA thesis submitted for the degree of Doctor of Philosophy, School of Engineering and Science, Swinburne University of Technology, 2008. Typescript. Includes bibliographical references (p. 189-204).
Tay, Hwee Koon. "Barrier properties of water-borne polymeric coatings and corrosion protection." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363999.
Full textWang, Peng. "Morphology and Protection Mechanisms of Epoxy-silane Anti-Corrosion Coatings." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1246997365.
Full textSoh, Tedric. "Conductive polymer coating for corrosion protection of steel." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112584.
Full textThe PPV coating is deposited by a homemade spinning coater. The effect of substrate microstructure and surface treatment on PPV coating morphology is investigated. The morphology and surface roughness of the coating are measured by Atomic Force Microscopy (AFM). The PPV coating thickness and substrate surface roughness are measured by profilometer.
Open Circuit Potential (OCP), electrochemical impedance spectroscopy (EIS), linear potentiodynamic voltammetry (Tafel) and optical microscopy were used to characterize the structure and properties of the coatings. The correlation between the coating thickness, the surface treatment of the steel substrate prior to coating, and the corrosion behaviour of PPV coated steel was investigated.
Under the condition of our studies, the level of pH in the solution used for corrosion testing has the strongest effect on the corrosion behaviour of PPV coated steel.
Bahramian, Ahmad. "Enhanced protection of electronic modules : metallic film synthesis and corrosion study." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0550/document.
Full textCu/Ni(Ni-P)/Au systems are used as electrical contacts due to their combination of electrical conductivity, corrosion resistance, and mechanical behavior. Cu has a unique electrical conductivity that made it the most used metal in electronics. However, protective coatings must be applied on Cu due to its poor corrosion resistance. Au films are used to secure a proper lifetime of electrical contacts. Ni films are essential to avoid the diffusion of Cu into Au. Electrodeposition is the method of choice to form these multi-layer systems. The Au top-coat is notably thin and hence porous. The corrosive media penetrate through these pores, hence electrical contacts are suffering from a galvanic coupling. This work is dedicated to identify and test the strategies to enhance the lifetime of electrical contacts and electronic modules. Three strategies were detected, (1) improve the properties of the Ni barrier layer, (2) replacing the Au film with a thicker but cheaper alternative metal, and (3) seal the pores of Au top-coat using a post-treatment process. It was found out that the properties of the Ni-P barrier film can be notably improved by additives such as glycine. Sn also found to be highly advantageous for forming NiSn barrier coatings. NiAg and NiPd noble top-coats were investigated as alternatives to Au thin films. Although highly adhesive films were formed using the pulse deposition, the films were porous and thus did not offer a proper corrosion behavior. And finally, a cathodic electropolymerization was employed as a post-treatment method. It was found out that the pores of Au top-coat can be effectively sealed by the electrodeposition of polymethyl methacrylate
COSTA, ISOLDA. "Effect of minor addition elements on the corrosion behaviour of bare and coated steels." reponame:Repositório Institucional do IPEN, 1991. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10281.
Full textMade available in DSpace on 2014-10-09T13:56:00Z (GMT). No. of bitstreams: 1 04366.pdf: 5734662 bytes, checksum: 226af9141e1984ce9dff1230b5f437ed (MD5)
Tese (Doutoramento)
IPEN/T
University of Manchester, England
KATARIA, DIPTI L. "POLYANILINE CLAY - POLYIMIDE HYBRID NANOCOMPOSITE COATINGS FOR CORROSION PROTECTION OF AA 2024." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1134153316.
Full textMabbutt, S. J. "Investigation into corrosion protection by coatings using the electrochemical noise method." Thesis, University of Northampton, 2000. http://nectar.northampton.ac.uk/2981/.
Full textSears, Joanne Marie. "An investigation of aluminium-magnesium-cerium alloy coatings for corrosion protection." Thesis, University of Salford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365974.
Full textTu, Khoi. "Enhancing the performance of pulsed current applied coatings for corrosion protection." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/enhancing-the-performance-of-pulsed-current-applied-coatings-for-corrosion-protection(cc494113-792f-4a08-a474-47149b6cedeb).html.
Full textEspartero, Jennifer C. "Polymeric Materials for Corrosion Protection in Geothermal Systems." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1427901218.
Full textSmith, H. E. M. "The protection of poorly prepared steel surfaces using water-borne coatings." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233531.
Full textBhardwaj, Abhinav. "Metallic Encapsulation for High Temperature (>500 °C) Thermal Energy Storage Applications." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5843.
Full textZHU, DANQING. "CORROSION PROTECTION OF METALS BY SILANE SURFACE TREATMENT." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1115992852.
Full textMaqbul, Abdo Ahmed. "An electrochemical study of the corrosion behaviour of metallic coatings on carbon steel strips." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314756.
Full textKataria, Dipti. "Polyaniline clay polyimide hybrid nanocomposite coatings for corrosion protection of AA 2024 /." Cincinnati, Ohio : University of Cincinnati, 2005. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1134153316.
Full textTitle from electronic thesis title page (viewed Apr. 21, 2006). Includes abstract. Keywords: Polyaniline, Coatings, Corrosion. Includes bibliographical references.
Tuaweri, Johnnie T. "Zinc and zinc alloy composite coatings for corrosion protection and wear resistance." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/10888.
Full textShepherd, Heather. "Application and characterization of polymer coatings for droplet microfluidics and corrosion protection." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1324375641&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
Full textSun, Ming. "Improving corrosion protection of magnesium alloys by plasma electrolytic oxidation based coatings." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/16374/.
Full textRogers, Daniel Michael. "INVESTIGATION OF THERMAL SPRAY COATINGS ON AUSTENITIC STAINLESS STEEL SUBSTRATE TO ENHANCE CORROSION PROTECTION." OpenSIUC, 2015. https://opensiuc.lib.siu.edu/theses/1651.
Full textRamniceanu, Andrei. "Investigation of parameters governing the corrosion protection efficacy of fusion bonded epoxy coatings." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/27848.
Full textPh. D.
Hoffman, John Mark. "Zinc coatings for the external protection of ductile iron water mains." Thesis, University of Manchester, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279981.
Full textShah, Kunal G. "Conducting Polymers / Polyimide-Clay Nanocomposite Coatings for Corrosion Protection of AA-2024 Alloy." Cincinnati, Ohio : University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1083723910.
Full textCross, Samuel R. (Samuel Robert). "Computational modeling and design of multilayer corrosion coatings for galvanic protection of steel." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/103269.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 140-146).
Steels represent an economically vital class of alloys for use in structural applications, due to low cost and high strength and toughness, but often suffer from high susceptibility to corrosion in relevant environments. Use of metallic coatings, particularly zinc alloys, has long been a widely employed method for corrosion protection of steel, by acting both as a physical barrier to the aggressive environment, and providing sacrificial protection due to the preferential dissolution of the coating. Recent advances in processing techniques has permitted the efficient deposition of multilayer metallic coatings, which offer tremendous potential for dramatic improvements in performance relative to single layer coatings. However, development of multilayer corrosion coatings is hampered by a number of obstacles, in particular the lack of theoretical or computational tools to predict the corrosion behavior of multilayer coating structures. While existing numerical models for corrosion are well validated for simple geometries and short timescales, there are no models with demonstrated ability to be applied to composite materials such as multilayer coatings, or to incorporate the effects of corrosion damage over time on the effectiveness of the coating. This thesis seeks to address this deficiency through development and validation of two corrosion modeling techniques. The first modeling technique uses standard techniques for numerical modeling of galvanic corrosion to produce time-dependent corrosion simulations for multilayer or compositionally graded coatings, under the assumptions of completely generalized corrosion. The second modeling technique attempts to capture the effect of localized corrosion on multilayer coatings by treating the coating material as a porous electrode with properties calculated through an effective medium approximation. The output of the corrosion models is validated through comparison to a number of quantitative and qualitative corrosion tests on a variety of coatings, and is demonstrated to accurately capture a wide range of phenomena relevant to corrosion of multilayer thin films. Finally, this thesis demonstrates the potential application of the developed corrosion models as a design tool, by applying optimization techniques to determine coating configurations with maximized protective ability.
by Samuel R. Cross.
Ph. D.
Jadhav, Niteen. "Novel Conducting Polymer Containing Composite Coatings for the Corrosion Protection of Metal Alloys." Diss., North Dakota State University, 2013. https://hdl.handle.net/10365/27037.
Full textU.S. Army Research Laboratory (Grant No. W911NF-09-2-0014, W911NF-10-2-0082, and W911NF-11-2-0027)
Wang, Di. "Sustainable corrosion protection for metallic materials by Mussel adhesive protein modified lignin film." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-275728.
Full textLignin har potential att användas som grönt material för att hämma korrosion av metalliska underlag. Mussellhäftande protein används för att modifiera lignin på grund av dess stora lim- och filmbildningsförmåga. Elektrokemisk impedansspektroskopi (EIS) har applicerats för att mäta korrosionsbeständigheten hos de bildade ytkompositfilmerna i den korrosiva miljön. Ekvivalentkretsen används för att passa EIS-data för att erhålla kvantitativa resultat från ytfilmerna. Resultaten visar att MAP-modifierad ligninkompositfilm kan ge förbättrat korrosionsskydd för kolfastsubstratet och uppvisar självhelande egenskaper.
Sadeghimeresht, Esmaeil. "Corrosion Behavior of HVAF-Sprayed Bi-Layer Coatings." Licentiate thesis, Högskolan Väst, Avdelningen för avverkande och additativa tillverkningsprocesser (AAT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-9929.
Full textFeng, Zuwei. "Formation of sol-gel coatings on aluminium alloys." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/formation-of-solgel-coatings-on-aluminium-alloys(7e6eed7e-959b-487d-bc3a-5950d584ca42).html.
Full textASHIRGADE, AKSHAY A. "ENVIRONMENTALLY-COMPLIANT NOVOLAC SUPERPRIMERS FOR CORROSION PROTECTION OF ALUMINUM ALLOYS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1153245386.
Full textPersson, Björn, and johanna Svensk. "Corrosion protection of powder coatings : Testing the barrier properties and adhesion of powder coating on aluminum for predicting corrosion protection by Electrochemical Impedance Spectroscopy." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Produktutveckling, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-36772.
Full textWeng, Duan. "Corrosion protection of metals by phosphate coatings and ecologically beneficial alternatives : properties and mechanisms /." [S.l.] : [s.n.], 1995. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11262.
Full textWaterman, Jay. "In Vitro Assessment of the Corrosion Protection of Biomimetic Calcium Phosphate Coatings on Magnesium." Thesis, University of Canterbury. Mechanical Engineering, 2012. http://hdl.handle.net/10092/7552.
Full textWang, Yingying. "Electrochemical behavior of cold sprayed coatings dedicated to corrosion protection applications : Role of microstructure." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0026.
Full textCold spray is a relatively new coating technology in which coatings are produced by powders projected at high velocity. A significant feature of cold spray is that bonding is generated through severe plastic deformation at temperatures well below melting point of feedstock powders. In the present study, kinds of metallic coatings were produced by cold spray, including aluminum alloy coating, pure magnesium coating, magnesium alloy coating, stainless steel coating and SiC reinforced composite coatings. According to the manner in which the coating protects its substrate against corrosion, these cold sprayed coatings can be divided into two types, i.e. sacrificial anodic coating and noble barrier coating. The objective of this thesis is to verify the feasibility of producing both sacrificial anodic coating and noble barrier coating with high corrosion performance by cold spray, and meanwhile demonstrate the usefulness of electrochemical measurements for the characterization of corrosion protection properties of cold sprayed coatings. Besides material system, process parameters which influence corrosion performance of cold sprayed coatings were studied. Two factors, i.e. process gas temperature and process gas pressure were chosen. Results showed that higher process gas temperature leads to denser aluminum coating. Likely, higher process gas pressure improves denseness and corrosion resistance of stainless steel 316L coating. SiC reinforced aluminum based composite coatings were deposited on aluminum, stainless steel and magnesium substrate. Compared with aluminum coating, the addition of hard ceramic particle affects microstructure of coatings, and improves corrosion resistance by increasing denseness. Ceramic particle fraction and size affect coating microstructure in different ways and also influence corrosion behavior. In view of corrosion process, results indicate that corrosion protection of cold sprayed coating could be divided into two steps. In the first step, substrate is completely shielded by dense coating, no corrosion reaction occurs on substrate. In the second step, two types of coatings show totally different behavior. In the case of sacrificial anodic coating, substrate is under cathodic protection in galvanic couple; hence no corrosion (or weakened corrosion) happens on substrate. In contrast, when the coating is noble than substrate, the protection effect would be immediately interrupted once corrosive electrolyte penetrates through coating to interface. The overall results indicate that cold spray is a highly reliable alternative for production of coatings in anti-corrosion applications. Electrochemical measurements are useful tools for quality evaluation of corrosion behavior of cold sprayed coatings
Carpenter, Phillip P. "Examination of the surface and interfacial properties of an epoxide-urethane resin for surface coatings." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/32637.
Full textReddy, Chandra M. "Improved corrosion protection of aluminum alloys by low temperature plasma interface engineering /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9924918.
Full textNguyen, Thierry Huu Chi. "CMZP and Mg-doped Al2TiO5 Thin film Coatings for High Temperature Corrosion Protection of Si3N4 Heat Exchangers." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36628.
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Jamali, Seyed Sina. "Study on corrosion protection of organic coatings using electrochemical techniques : developing electrochemical noise method, effective of surface preparation and inhomogeneity of organic coatings." Thesis, University of Northampton, 2013. http://nectar.northampton.ac.uk/8862/.
Full textAbushwashi, Ibrahem. "Corrosion protection performance of cathodically protected oil and gas pipeline coatings around the transition temperature." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46840.
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