Browsing by Author "Fargas Ribas, Gemma"Més informacióMés informació

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  • 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)
    Article
    Open Access

  • 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)
    Article
    Open Access
    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)
    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 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)
    Conference report
    Open Access
    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
    Restricted access - publisher's policy
    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)
    Article
    Open Access
    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
    Restricted access - publisher's policy
    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)
    Article
    Open Access
    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
    Restricted access - publisher's policy
    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 ...

  • Dynamic deformation of metastable austenitic stainless steels at the nanometric length scale 

    Roa Rovira, Joan Josep; Sapezanskaia, Ina; Fargas Ribas, Gemma; Kouiat, R.; Redjaïmia, Abdelkrim; Mateo García, Antonio Manuel (2018-09-17)
    Article
    Restricted access - publisher's policy
    Cyclic indentation was used to evaluate the dynamic deformation on metastable steels, particularly in an austenitic stainless steel, AISI 301LN. In this work, cyclic nanoindentation experiments were carried out and the ...

  • Effect of cold rolling on the high cycle fatigue 

    Zapata Dederle, Ana Cristina; Fargas Ribas, Gemma; Mateo García, Antonio Manuel (2011-04-06)
    Article
    Restricted access - publisher's policy
    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)
    Conference report
    Restricted access - publisher's policy
    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 corrosion-induced damage on microstructure and residual strenght of WC-Co,Ni cemented carbide 

    Zheng, Y.F.; Fargas Ribas, Gemma; Armelín Diggroc, Elaine Aparecida; Llanes Pitarch, Luis Miguel (2018)
    Conference lecture
    Open Access

  • Effect of shot peening on metastable austenitic stainless steels 

    Fargas Ribas, Gemma; Roa Rovira, Joan Josep; Mateo García, Antonio Manuel (2015-08-12)
    Article
    Open Access
    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)
    Article
    Restricted access - publisher's policy
    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)
    Article
    Open Access
    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)
    Conference lecture
    Restricted access - publisher's policy
    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)
    Conference report
    Open Access
    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)
    Article
    Restricted access - publisher's policy
    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)
    Article
    Open Access
    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, ...