Browsing by Subject "Corrosió i anticorrosius"

Now showing items 1-20 of 55

    • A model study on controlling dealloying corrosion attack by lateral modification of surfactant inhibitors 

      Bertran Cànovas, Òscar; Crespo Artiaga, Daniel; Kokalj, Anton; Renner, Frank U.; Losada Perez, Patricia; Neupane, Shova; Rivas, Nicolás A.; D'Haen, Jan; Noei, Heshmat; Keller, Thomas; Stierle, Andreas; Rudolph, Michael; Terfort, Andreas (2021-12-01)
      Article
      Open Access
      Detrimental corrosion is an ever-concerning challenge for metals and alloys. One possible remedy is to apply organic corrosion inhibitors. Despite progress in molecular assembly and inhibitor research, better mechanistic ...

    • Aluminum and aluminum alloys as sources of hydrogen for fuel cell applications 

      Soler Turu, Lluís; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Casado Giménez, Juan (2007-06-10)
      Article
      Restricted access - publisher's policy
      Production of hydrogen using aluminum and aluminum alloys with aqueous alkaline solutions is studied. This process is based on aluminum corrosion, consuming only water and aluminum which are cheaper raw materials than other ...

    • Aluminum protection by using green zirconium oxide layer and organic coating: An efficient and adherent dual system 

      Bonamigo Moreira, Vitor; Meneguzzi, Alvaro; Jiménez Piqué, Emilio; Alemán Llansó, Carlos; Armelín Diggroc, Elaine Aparecida (2021-09-01)
      Article
      Open Access
      In this work, the use of ZrO2 nanocoating in aluminum substrates, generated by controlled electrochemical chronoamperometry in hexafluorozirconic acid solutions (H2ZrF6·5H2O), resulted in a lower porous films than that ...

    • Analyse de l’état de la peinture et de la corrosion des escaliers de la Tour Eiffel 

      Bafaluy Ojea, Sergi (Universitat Politècnica de Catalunya / Ecole Européenne d’Ingénieurs en Génie des Matériaux, 2017-07)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement

    • Anticorrosive Coatings and Interlayer Adhesion Loss 

      Camós Noguer, Albert (Universitat Politècnica de Catalunya, 2012)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Epoxy-amine coatings are widely used as primers in the ships industry. The degradation of these coatings when exposed to weathering is studied in this project and the influence it has on the overcoatability. Accelerated ...

    • Aplicaciones de las medidas electroquímicas al estudio de la corrosión metálica 

      L.A.E. (L.A.E, [19uu])
      Book
      Open Access

    • Assessment of corrosion-induced changes on the mechanical integrity of cemented carbides at small length scales 

      Zheng, Y.F.; Fargas Ribas, Gemma; Besharatloo, H.; Serra, Marco; Roa Rovira, Joan Josep; Armelín Diggroc, Elaine Aparecida; Lavigne, Olivier; Llanes Pitarch, Luis Miguel (2019-11-01)
      Article
      Open Access
      In this work, the effect of corrosion-induced damage on the mechanical response of hardmetals was evaluated at small length-scale by means of nanoindentation and nanoscratch techniques. Damage was introduced in a controlled ...

    • Avaluació del dany introduït per corrosió en les propietats mecàniques del metall dur 

      Marcé Pous, Albert (Universitat Politècnica de Catalunya, 2019-07-08)
      Bachelor thesis
      Restricted access - author's decision
      Els carburs cementats, també coneguts com a metalls durs, són una família de materials compostos que presenten unes propietats d’allò més destacables; aquestes, són el resultat de la combinació de les dues fases: metàl·lica ...

    • Caracterització electroquímica d'aliatges "High-Entropy" 

      Grande Bayona, David (Universitat Politècnica de Catalunya, 2020-10-22)
      Bachelor thesis
      Open Access
      En aquest treball s’han produït una sèrie de composicions d’uns aliatges anomenats high-entropy metallic glasses. Aquest tipus d’aliatges són una combinació d’aliatges high-entropy, creats a partir de la fusió a alta ...

    • Chemical milling of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo alloys in hydrofluoric-nitric acid solutions 

      Sefer, Birhan; Dobryden, Illia; Almqvist, Nils; Pederson, Robert; Antti, Marta-lena (2017-04-01)
      Article
      Restricted access - publisher's policy
      The behavior of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo during chemical milling in hydrofluoric-nitric (HF-HNO3) acid solutions with 1:3 and 1:11 molar ratios was investigated using electrochemical and atomic force microscopy ...

    • Comportamiento a la corrosión de implantes de titanio granallados 

      Aparicio Bádenas, Conrado José; Rodríguez Rius, Daniel; Gil Mur, Francisco Javier; Fonseca Casas, Pau; Barbosa, M.; Nussbaum, G.; García, A.; Planell Estany, Josep Anton (Sociedad Ibérica de Biomecánica y Biomateriales, 1999-12)
      Article
      Open Access
      Se ha demostrado que realizar el tratamiento de granallado sobre implantes mejora la fijación de los mismos, debido a la rugosidad superficial que adquieren. Variando el tamaño de las partículas de proyección del granallado, ...

    • Computational image analysis as an alternative tool for the evaluation of corrosion in salt spray test 

      Bonamigo Moreira, Vitor; Krummenauer, Alex; Ferreira, Jane Zoppas; Armelín Diggroc, Elaine Aparecida; Meneguzzi, Alvaro (2020-01-01)
      Article
      Open Access
      The current standards for evaluating corrosion during salt spray tests rely on the visual analysis of the specimens, and this may be a limitation when higher resolution quantitative outputs are desired. In this ...

    • Contact fatigue of WC-6%wtCo cemented carbides: Influence of corrosion-induced changes on emergence and evolution of damage 

      Fargas Ribas, Gemma; Lavigne, Olivier; Llanes Pitarch, Luis Miguel (2022-02)
      Article
      Restricted access - publisher's policy
      The effect of corrosion-induced changes on the contact fatigue response and associated damage in a medium-grained WC-6%wtCo hardmetal grade is investigated. Cyclic contact loading tests are conducted by means of Hertzian ...

    • Corrosion damage in WC-Co cemented carbides: residual strength assessment and 3D FIB-FESEM tomography characterisation 

      Tarragó Cifre, Jose María; Fargas Ribas, Gemma; Jiménez Piqué, Emilio; Felip, Alba; Isern, Lluis; Coureaux Mustelier, David; Roa Rovira, Joan Josep; Al-Dawery, Ihsan; Fair, Jonathan; Llanes Pitarch, Luis Miguel (2014-12-01)
      Article
      Restricted access - publisher's policy
      The effect of corrosion damage on cemented carbides was investigated. The study included residual strength assessment and detailed fractographic inspection of corroded specimens as well as detailed 3D FIB-FESEM tomography ...

    • Corrosion effects on hertzian contact fatigue behavior of a WC-Co cemented carbide 

      Fargas Ribas, Gemma; Llanes Pitarch, Luis Miguel (2021)
      Conference report
      Open Access
      The effect of corrosion on the damage induced under cyclic contact loading for a medium-grained WC-6%wtCo hardmetal grade is investigated. Contact fatigue tests are conducted by means of Hertzian indentation techniques. ...

    • Corrosion induced degradation of textured YBCO under operation in high humidity conditions 

      Roa Rovira, Joan Josep; Jiménez Piqué, Emilio; Díaz, Jordi A.; Morales, Manuel; Calleja Lázaro, Albert; Segarra, M. (2012-05-25)
      Article
      Restricted access - publisher's policy
      The early stages of aggressive degradation at 85% of humidity for 24 h of single crystals of YBa2Cu3O7 − δ textured by Bridgman technique have been analyzed by means of atomic force microscopy, X-ray photoelectron spectroscopy, ...

    • Corrosion-induced changes on Hertzian contact damage in cemented carbides 

      Zheng, Yafeng; Fargas Ribas, Gemma; Lavigne, Olivier; Roitero, Erica; Llanes Pitarch, Luis Miguel (2020-11-01)
      Article
      Open Access
      In this study, the influence of corrosion on the mechanical response and damage induced under Hertzian indentation is assessed for three cemented carbides with metallic binders of different chemical nature. Corrosion ...

    • Corrosion-induced damage and residual strength of WC-Co,Ni cemented carbides: influence of microstructure and corrosion medium 

      Zheng, Yafeng; Fargas Ribas, Gemma; Armelín Diggroc, Elaine Aparecida; Lavigne, Olivier; Llanes Pitarch, Luis Miguel (Multidisciplinary Digital Publishing Institute (MDPI), 2019-09-19)
      Article
      Open Access
      The corrosion behavior of cemented carbides with binders of different chemical nature (Co and Ni) and carbides with distinct mean grain size (ultrafine and coarse) was studied. The investigation also included corrosion ...

    • Corrosion: how to control it? 

      Hidalgo Serra, Ernest; Legrand, Erika; Toenders, Frank (Universitat Politècnica de Catalunya, 2009-12-03)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Høgskolen i Oslo / Oslo Heart Center
      Established in 1989, Oslo Heart Centre (OHC) is located in downtown Oslo, Norway. The hospital is a non-profit cardiac surgical clinic. To control the temperature in the hospital during the summer months, an air-conditioning ...

    • Corrosión y protección 

      Bilurbina Alter, Luis; Liesa Mestres, Francisco; Iribarren Laco, José Ignacio (Edicions UPC, 2003)
      Book
      Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC users
      El libro está dirigido a técnicos de las industrias de la producción y del mantenimiento de instalaciones, a estudiantes de ingeniería y de ciencias de los materiales y, en general, a todos aquellos que en su profesión ...