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Ara es mostren els items 41-60 de 102

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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
      Accés obert
      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)
      Text en actes de congrés
      Accés obert
      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
      Accés obert
      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)
      Text en actes de congrés
      Accés obert
      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. ...

    • Fatigue resistance evaluation of high Mn-TWIP steel through damage mechanics: A new method based on stiffness evolution 

      Parareda Oriol, Sergi; Casellas Padró, Daniel; Lara, Antoni; Mateo García, Antonio Manuel (2022-03-01)
      Article
      Accés obert
      The work presented here deals with the implementation of a new methodology that allows fast and reliable determination of the fatigue strength. It is based on monitoring the specimen stiffness changes at different stress ...

    • Fractura de materiales 

      Alcalá Cabrelles, Jorge; Llanes Pitarch, Luis Miguel; Mateo García, Antonio Manuel; Salán Ballesteros, Maria Núria (Edicions UPC, 2002)
      Llibre
      Accés restringit a la comunitat UPC
      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)
      Report de recerca
      Accés restringit per acord de confidencialitat

    • Fracture toughness to assess the effect of trimming on the fatigue behaviour of high-strength steels for chassis parts 

      Parareda Oriol, Sergi; Frómeta Gutiérrez, David; Casellas Padró, Daniel; Mateo García, Antonio Manuel (2023)
      Text en actes de congrés
      Accés obert
      High-strength steels are widely used in vehicle body-in-white, offering a good balance between crashworthiness and lightweight design. The increased requirements of heavier electric vehicles, in terms of fatigue resistance ...

    • 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
      Accés obert
      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
      Accés obert
      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
      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)
      Article
      Accés obert
      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
      Accés restringit per política de l'editorial
      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 ...

    • Influence of cyclic thermal treatments on the oxidation behavior of Ti-6Al-2Sn-4Zr-2Mo alloy 

      Fargas Ribas, Gemma; Roa Rovira, Joan Josep; Sefer, Birhan; Mateo García, Antonio Manuel (2018-11-01)
      Article
      Accés obert
      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 ...

    • Influence of laser cutting on the fatigue limit of two high strenght steels 

      Mateo García, Antonio Manuel; Fargas Ribas, Gemma; Calvo Muñoz, Jessica; Roa Rovira, Joan Josep (2015-03-05)
      Article
      Accés obert
      Laser cutting is widely used in the metal industry, particularly when components of high strength steel sheets are produced. However, the roughness of cut edges produced by laser differs from that obtained by other methods, ...

    • INFLUENCE OF LASER CUTTING ON THE FATIGUE LIMIT OF TWO HIGH STRENGTH STEELS 

      Mateo García, Antonio Manuel; Fargas Ribas, Gemma; Calvo Muñoz, Jessica; Roa Rovira, Joan Josep (2013)
      Text en actes de congrés
      Accés obert
      Laser cutting is widely used in the metal industry, particularly when components of high strength steels sheets are produced. On the other hand, the roughness of cut - edges produced by laser differs from that obt ained ...

    • Influence of pre-existing martensite on the wear resistance of metastable austenitic stainless steels 

      Fargas Ribas, Gemma; Roa Rovira, Joan Josep; Mateo García, Antonio Manuel (2016)
      Article
      Accés obert
      The effect of pre-existing martensite on the sliding wear behavior of a commercial metastable austenitic stainless steel was investigated. Two different steel conditions were considered: annealed (with a fully austenitic ...

    • Influence of substrate microstructure on the contact fatigue strength of coated cold-work tool steels 

      Llanes Pitarch, Luis Miguel; Ramirez, Giselle; Mestra Rodríguez, Álvaro Miguel; Casas, B.; Valls, Isaac; Martinez, R.; Bueno, R.; Goez, Alexey; Mateo García, Antonio Manuel (2012-02-25)
      Article
      Accés restringit per política de l'editorial
      The contact fatigue behavior of three microstructurally distinct tool steels coated with a physical vapor deposited TiN film is studied. Substrate microstructural differences come from variations in either chemical composition ...

    • Influence of testing mode on the fatigue behavior of <111> austenitic grain at the nanometric length scale for TRIP steels 

      Roa Rovira, Joan Josep; Sapezanskaia, Ina; Fargas Ribas, Gemma; Kouitat, R.; Redjaïmia, A.; Mateo García, Antonio Manuel (2018-01-24)
      Article
      Accés obert
      Metastable austenitic stainless steels, and in particular the TRansformation Induced Plasticity steels, rely on a phase transformation from a ductile austenite to a slightly harder martensite. These materials under fatigue ...