Ara es mostren els items 1-20 de 34

  • Comportamiento a fractura de aceros metaestables 

    Mateo García, Antonio Manuel; Gutierrez, D.; Lara, A.; Zapata Dederle, Ana Cristina; Rodríguez Calvillo, Pablo; Fargas Ribas, Gemma; Calvo Muñoz, Jessica; Casellas Padró, Daniel (2012)
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  • Correlation between microstructure and mechanical properties before and after reversion of metastable austenitic stainless steels 

    Fargas Ribas, Gemma; Zapata, Ana; Roa Rovira, Joan Josep; Sapezanskaia, Ina; Mateo García, Antonio Manuel (2015)
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    Reversion treatments are a way to improve the mechanical response of metastable austenitic stainless steels by means of grain refinement. To effectively apply those treatments, the steel must be previously deformed to ...
  • 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)
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    Accés restringit per política de l'editorial
    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 damage in WC-Co cemented carbides: Residual strength assessment and 3D FIB-FESEM tomography characterization 

    Tarragó Cifre, Jose María; Fargas Ribas, Gemma; Jiménez Piqué, Emilio; Felip, Alba; Isern, Lluis; Coureaux Mustelier, David; Al-Dawery, Ihsan; Roa Rovira, Joan Josep; Fair, Jonathan; Llanes Pitarch, Luis Miguel (2014)
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    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 ...
  • Deformation mechanism induced under high cycle fatigue test in a metaestable austenitic stainless steel 

    Roa Rovira, Joan Josep; Fargas Ribas, Gemma; Jiménez Piqué, Emilio; Mateo García, Antonio Manuel (2014)
    Article
    Accés restringit per política de l'editorial
    Advanced techniques were used to study the deformation mechanisms induced by fatigue tests in a metastable austenitic stainless steel AISI 301LN. Observations by Atomic Force Microscopy were carried out to study the evolution ...
  • Deformation mechanisms induced by nanoindentation tests on a metastable austenitic stainless steel: a FIB/SIM investigation 

    Sapezanskaia, Ina; Roa Rovira, Joan Josep; Fargas Ribas, Gemma; Turón Viñas, Miquel; Trifonov, T.; Kouitat Njiwa, R.; Redjaïmia, A.; Mateo García, Antonio Manuel (2017-09)
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    Metastable austenitic stainless steels are materials that can undergo austenite to martensite phase transformation when subjected to deformation and thus they represent a multiphase material with interesting mechanical ...
  • Deformation mechanisms induced under high cycle fatigue tests in a metastable austenitic stainless steel 

    Roa Rovira, Joan Josep; Fargas Ribas, Gemma; Jiménez Piqué, Emilio; Mateo García, Antonio Manuel (2014)
    Article
    Accés restringit per política de l'editorial
    Advanced techniques were used to study the deformation mechanisms induced by fatigue tests in a metastable austenitic stainless steel AISI 301LN. Observations by Atomic Force Microscopy were carried out to study the evolution ...
  • Deformation of polycrystalline TRIP stainless steel micropillars 

    Roa Rovira, Joan Josep; Wheeler, J.M.; Trifonov, T.; Fargas Ribas, Gemma; Mateo García, Antonio Manuel; Michler, J; Jiménez Piqué, Emilio (2015)
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    The deformation mechanisms of the metastable austenite phase of a transformation induced plasticity (TRIP) stainless steel, AISI 301LN, have been investigated by compression of multicrystalline micropillars of different ...
  • Dependence of nanoindentation hardness with crystallographic orientation of austenite grains in metastable stainless steels 

    Roa Rovira, Joan Josep; Fargas Ribas, Gemma; Mateo García, Antonio Manuel; Jiménez Piqué, Emilio (2015-10-01)
    Article
    Accés restringit per política de l'editorial
    The mechanical behaviour of a metastable austenitic stainless steel has been studied by means of nanoindentation of individual grains. Hardness, elastic modulus and estimation of wear resistance were determined as a function ...
  • Effect of cold rolling on the high cycle fatigue 

    Zapata Dederle, Ana Cristina; Fargas Ribas, Gemma; Mateo García, Antonio Manuel (2011-04-06)
    Article
    Accés restringit per política de l'editorial
    Plastic deformation can induce the austenite transformation to martensite in metastable austenitic stainless steels. To analyze this issue, a metastable austenitic stainless steel grade AISI 301 LN was studied in two ...
  • Effect of cold rolling on the high cycle fatigue behaviour of and ANSI 301 LN stainless steel 

    Zapata Dederle, Ana Cristina; Fargas Ribas, Gemma; Mateo García, Antonio Manuel (2011)
    Text en actes de congrés
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    Plastic deformation can induce the austenite transformation to martensite in metastable austenitic stainless steels. To analyze this issue, a metastable austenitic stainless steel grade AISI 301 LN was studied in two ...
  • Effect of shot peening on metastable austenitic stainless steels 

    Fargas Ribas, Gemma; Roa Rovira, Joan Josep; Mateo García, Antonio Manuel (2015-08-12)
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    In this work, shot peening was performed in a metastable austenitic stainless steel EN 1.4318 (AISI 301LN) in order to evaluate its effect on austenite to martensite phase transformation and also the influence on the fatigue ...
  • Effect of thermal treatments on the wear behaviour of duplex stainless steels 

    Fargas Ribas, Gemma; Mestra Rodríguez, Álvaro Miguel; Anglada Gomila, Marcos Juan; Mateo García, Antonio Manuel (2009-11-04)
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    Accés restringit per política de l'editorial
    Duplex stainless steel (DSS) is a family of steels characterized by two-phase microstructure with similar percentages of ferrite (α) and austenite (y).Their attractive combination of mechanical properties and corrosion ...
  • Empirical expression for the prediction of penetration in butt joints for duplex stainless steel SAF 2205 

    Dorta Almenara, Minerva; Vidal, Jorge; Mateo García, Antonio Manuel; Fargas Ribas, Gemma; Camejo, Franklin (2011-10)
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    La presente investigación muestra dos modelos empíricos que permiten predecir la geometría del cordón de soldadura a tope de un acero inoxidable dúplex tipo 2205. Para obtener dichos modelos se empleó una metodología que ...
  • Estudio del efecto del límite de grano en los mecanismos de deformación de los aceros TRIP mediante compresión de micropilares 

    Roa Rovira, Joan Josep; Wheeler, J.M.; Fargas Ribas, Gemma; Mateo García, Antonio Manuel (2017)
    Comunicació de congrés
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    Los aceros TRIP (Transformation-Induced Plasticity) se caracterizan por presentar transformación de fase de austenita a martensita por deformación, hecho que les confiere una mayor capacidad de endurecimiento que los aceros ...
  • Fatigue propagation of long cracks in metastable austenitic stainless steels 

    Martelo, D.F.; Mateo García, Antonio Manuel; Fargas Ribas, Gemma; Chapetti, M.D. (2013)
    Text en actes de congrés
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    Fatigue crack growth of a metastable austenitic stainless steel was investigated in thin specimen under positive stress ratio. Annealed and Co l d rolled conditions were used to test the influence of the microstructure. ...
  • High Cycle Fatigue of Metastable Austenitic Stainless Steels 

    Fargas Ribas, Gemma; Zapata Dederle, Ana Cristina; Anglada Gomila, Marcos Juan; Mateo García, Antonio Manuel (IOP PUBLISHING LTD., 2009-11-04)
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    Accés restringit per política de l'editorial
    Metastable austenitic stainless steels are currently used in applications where severe forming operations are required, such as automotive bodies, due to its excellent ductility. They are also gaining interest for its ...
  • Improvement of mechanical properties on metastable stainless steels by reversion heat treatments 

    Mateo García, Antonio Manuel; Zapata, A.; Fargas Ribas, Gemma (IOP Publishing. Institute of Physics, 2013-03-21)
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    AISI 301LN is a metastable austenitic stainless steel that offers an excellent combination of high strength and ductility. This stainless grade is currently used in applications where severe forming operations are required, ...
  • Influence of carbide grain size on the corrosion behaviour of WC-Co cemented carbides: electrochemical measurements, residual strenght and 3D FIB/FESEM characterization of induced damage 

    Fargas Ribas, Gemma; Jiménez Piqué, Emilio; Llanes Pitarch, Luis Miguel (2016)
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    The exposure of cemented carbides to corrosive environments is generally associated with a reduction of the performance and life - time of tools and components. The aim of this investigation is to evaluate the effects of ...
  • Influence of heat treatments on YSZ electrolyte for sofc manufactured by HVSFS 

    Fargas Ribas, Gemma; Stiegler, Nico; Killinger, Andreas; Gadow, Rainer; Anglada Gomila, Marcos Juan (2010)
    Text en actes de congrés
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    High-velocity suspension flame spraying (HVSFS) is a promising technology to manufacture yttria stabilized zirconia (YSZ) as solid electrolyte for solid oxide fuel cells (SOFC). In this paper isothermal ageing and thermal ...