Now showing items 21-40 of 69

    • 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 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 ...
    • Evaluación mecánica mediante técnicas de indentación de soldaduras por fricción lineal en aleaciones de titanio 

      Corzo Rueda, M. Clemencia; Casals, O.; Alcalá Cabrelles, Jorge; Mateo García, Antonio Manuel; Anglada Gomila, Marcos Juan (2005-11)
      Article
      Open Access
      Este artículo presenta los resultados de un proyecto cuyo objetivo es evaluar la integridad estructural de soldaduras por fricción lineal entre diferentes aleaciones de titanio de aplicación aeronáutica. Concretamente se ...
    • Evaluation of the bulk and alpha-case layer properties in Ti-6Al-4V at micro- and nano-metric length scale 

      Sefer, Birhan; Roa Rovira, Joan Josep; Mateo García, Antonio Manuel; PEDERSON, R; Antti, Marta-Lena (WILEY, 2016)
      Part of book or chapter of book
      Restricted access - publisher's policy
      In the present study the hardness of individual alpha ( )-Ti grains in Ti-6Al-4V was measured by nanoindentation using Berkovich tip indenter. Additionally, alpha-case layer was induced by performing isothermal heat ...
    • Fatiga isotérmica de aceros para herramientas de trabajo en caliente 

      Mateo García, Antonio Manuel; Casas, B.; Mir Carbonell, Jordi; Molas, S.; Llanes Pitarch, Luis Miguel (2010)
      Conference report
      Restricted access - publisher's policy
      El trabajo reportado en este artículo forma parte de un proyecto de investigación en el cual se tratan de desarrollar aceros de herramientas para conformado en caliente con prestaciones optimizadas. Para ello se comenzó ...
    • Fatiga isotérmica de aceros para herramientas de trabajo en caliente 

      Mateo García, Antonio Manuel; Llanes Pitarch, Luis Miguel; Casas, B.; Mir, J.; Molas, S. (2011-06-20)
      Article
      Open Access
      El trabajo reportado en este artículo forma parte de un proyecto de investigación en el cual se tratan de desarrollar aceros de herramientas para conformado en caliente con prestaciones optimizadas. Para ello se comenzó ...
    • Fatigue crack growth behavior of WC-Co and WC-CoNi cemented carbides 

      Tarragó Cifre, Jose María; Roa Rovira, Joan Josep; Valle, Vladimir; Jessica, Marshall; Mateo García, Antonio Manuel; Llanes Pitarch, Luis Miguel (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
      Conference report
      Open Access
      En este trabajo se investigó el crecimiento de grietas por fatiga para diversas calidades de metal duro en función de la microestructura y el cociente de carga aplicada (R). De esta forma, se evaluó la influencia de la ...
    • Fatigue crack growth of a metastable austenitic stainless steel 

      Martelo, D.F.; Mateo García, Antonio Manuel; Chapetti, M.D. (2015-11-01)
      Article
      Open Access
      The fatigue crack growth behavior of an austenitic metastable stainless steel AISI 301LN in the Paris region is investigated in this work. The fatigue crack growth rate curves are evaluated in terms of different parameters ...
    • 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. ...
    • Fractura de materiales 

      Alcalá Cabrelles, Jorge; Llanes Pitarch, Luis Miguel; Mateo García, Antonio Manuel; Salán Ballesteros, Maria Núria (Edicions UPC, 2002)
      Book
      Restricted access to the UPC academic community
      Todos los componentes de aplicación en ingeniería están sometidos, en mayor o menor grado, a procesos de fatiga y fractura. La fractura de los materiales es un fenómeno que comenzó a cobrar importancia a partir de la ...
    • Fracture testing and damage evaluation for virgin and healed composite materials at cryogenic temperatures 

      Roa Rovira, Joan Josep; Alvarez, F; García Marro, Fernando; Mateo García, Antonio Manuel (2019)
      External research report
      Restricted access - confidentiality agreement
    • Geometrically necessary dislocations on plastic deformation of polycrystalline TRIP steel 

      Roa Rovira, Joan Josep; Suárez Vallejo, Sebastian; Guitar, Agustina; Fargas Ribas, Gemma; Mateo García, Antonio Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2019-06-01)
      Article
      Open Access
      In this study, the main deformation behavior in terms of geometrically necessary dislocations (GND) was investigated on a transformation induced plasticity (TRIP) stainless steel by using sharp indentation at nanometric ...
    • Hall-Petch strengthening of the constrained metallic binder in WC-Co cemented carbides: Experimental assessment by means of massive nanoindentation and statistical analysis 

      Roa Rovira, Joan Josep; Jiménez Piqué, Emilio; Salla Tarragó, José María; Mateo García, Antonio Manuel; Sandoval, Daniela A.; Fair, Jonathan; Llanes Pitarch, Luis Miguel (2016-10-31)
      Article
      Open Access
      WC–Co cemented carbides are geometrically complex composites constituted for two interpenetrating networks of the constitutive ceramic and metal phases. Accordingly, assessment of microstructural effects on the local ...
    • 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, ...
    • Influence of cyclic thermal treatments on the oxidation behavior of Ti-6Al- 2Sn-4Zr-2Mo alloy 

      Fargas Ribas, Gemma; Roa Rovira, Joan Josep; Sefer, B.; Mateo García, Antonio Manuel (2018-11-01)
      Article
      Restricted access - publisher's policy
      Ti-6Al-2Sn-4Zr-2Mo is one of the most common titanium alloys for aerospace industry. This alloy experiences oxidation phenomenon at elevated temperatures. In the present study, cyclic thermal treatments were performed in ...