Now showing items 1-7 of 7

  • Fatigue susceptibility under contact loading of hardmetals coated with ceramic films 

    Llanes Pitarch, Luis Miguel; Tarrés, E.; Ramírez, Giselle; Botero Vega, Carlos Alberto; Jiménez Piqué, Emilio (2010-04)
    Article
    Restricted access - publisher's policy
    The contact fatigue behavior of a fine-grained hardmetal coated with two distinct ceramic films, either a TiN monolayer or a WC/C multilayer, is studied by means of indentation testing techniques. Spherical indentation ...
  • Focused ion beam tomography of WC-Co cemented carbides 

    Jiménez Piqué, Emilio; Turón Viñas, Miquel; Chen, H.; Todorov Trifonov, Trifon; Fair, Jonathan; Tarrés, E.; Llanes, Angels (2017-09-01)
    Article
    Open Access
    The microstructure of three different grades of WC-Co cemented carbides (hardmetals) has been reconstructed in three dimensions after sequential images obtained by focused ion beam. The three dimensional microstructual ...
  • Fracture and fatigue of rock bit cemented carbides: Mechanics and mechanisms of crack growth resistance under monotonic and cyclic loading 

    Torres, Y.; Tarragó Cifre, Jose María; Coureaux Mustelier, David; Tarrés, E.; Roebuck, C.; Chan, P.; James, M.; Liang, B.; Tillman, M.; Viswanadham, R.K.; Mingard, K.P.; Mestra Rodríguez, Álvaro Miguel; Llanes Pitarch, Luis Miguel (2014-07-01)
    Article
    Restricted access - publisher's policy
    In an attempt to improve the material selection, design and reliability of rock bit WC-Co cemented carbides (hardmetals), an extensive and detailed study is conducted with the main goal of characterizing the fracture and ...
  • Influencia de la microestructura en el daño inducido por corrosión en los carburos cementados WC-Co 

    Fargas Ribas, Gemma; Llanes Pitarch, Luis Miguel; Müller Jevenois, Carlos M.; Sosa, D.; Tarragó, Jose Maria; Tarrés, E.; Fair, Jonathan (2017)
    Conference report
    Restricted access - publisher's policy
    El presente trabajo tiene como objetivo estudiar la influencia de la microestructura en el comportamiento a corrosión de carburos cementados WC-Co (metal duro), en dos medios: agua de mar y agua de mina. Para ello, se han ...
  • Micromechanical properties of WC-(W,Ti,Ta,Nb)C-Co composites 

    Sandoval, Daniela A.; Roa Rovira, Joan Josep; Ther, O; Tarrés, E.; Llanes Pitarch, Luis Miguel (2019-03-10)
    Article
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    A deep knowledge of micromechanical properties of each constitutive phase of cemented carbides is crucial to improve their performance on the basis of microstructural design optimization. In the present work, a systematic ...
  • Microstructural influence on tolerance to corrosion-induced damage in hardmetals 

    Tarrago, J.M.; Fargas Ribas, Gemma; Isern, Lluis; Dorvlo, Selassie; Tarrés, E.; Muller, Carlos; Jiménez Piqué, Emilio; Llanes Pitarch, Luis Miguel (2016)
    Article
    Open Access
    The influence of the microstructure on the tolerance of WC-Co cemented carbides to corrosion damage was studied by using residual strength as the critical design parameter. In doing so, samples were immersed in synthetic ...
  • Small scale mechanical response of WC-Co cemented carbides 

    Roa Rovira, Joan Josep; Jiménez Piqué, Emilio; Sandoval, Daniela A.; Tarrago, Jose María; Fair, Jonathan; Tarrés, E.; Llanes Pitarch, Luis Miguel (2017)
    Conference report
    Restricted access - publisher's policy
    In recent years, many efforts have been invested to determine the intrinsic mechanical properties for each constitutive phase of composite materials. The outstanding behaviour of WC-Co composites is mainly attributed to ...