El principal objectiu del grup de recerca és l’estudi de la integritat estructural, la fiabilitat i el comportament de materials, amb aplicacions estructurals a l’enginyeria, en especial la fractura, fatiga, corrosió i micromecànica de ceràmics avançats, metall dur i compostos, acers i nous aliatges. A més, el CIEFMA forma part de TECNIO fent una tasca de suport a l’empresa i posseeix un Sistema de Gestió de la Qualitat
en la gestió de projectes, incidències i utilització d’equipaments. L’estratègia del grup es dirigeix principalment als sectors d’enginyeria de materials en el quals es disposa d’expertesa:
Metal•lúrgic, Transport, Energètic, Biomèdic i Educació. Les línies de recerca més rellevants, tal i
com s’ha esmentat anteriorment, són:
Comportament mecànic, fractura, fatiga i corrosió d’acers, aliatges de titani i nous aliatges
Ceràmiques tècniques avançades, ceràmiques nanoestructurades, resistència a la degradació i
modificació superficial.
Compostos metall/ceràmic, carburs cementats, fractura, fatiga i modificació superficial.
Recobriments, micromecànica i nanoindentació

http://futur.upc.edu/CIEFMA

The research group's main aim is to study the structural integrity, reliability and behaviour of materials for structural applications in engineering, particularly fracture, fatigue, corrosion and micromechanics of advanced ceramics, hard metals and composites, steels and new alloys. In addition, the CIEFMA is part of the TECNIO network and offers support to businesses. It also has a quality management system for managing projects and handling incidents and the use of facilities. The research group's strategy mainly targets the materials engineering sectors in which it has expertise: metallurgy, transport, energy, biomedicine and education. Its most significant research lines are the following: mechanical behaviour, fracture, fatigue and corrosion of steels, titanium alloys and new alloys; advanced technical ceramics, nanostructured ceramics, resistance to degradation and surface modification; metal-ceramic composites, cemented carbides and fracture, fatigue and surface modification; and coatings, micromechanics and nanoindentation.

http://futur.upc.edu/CIEFMA

The research group's main aim is to study the structural integrity, reliability and behaviour of materials for structural applications in engineering, particularly fracture, fatigue, corrosion and micromechanics of advanced ceramics, hard metals and composites, steels and new alloys. In addition, the CIEFMA is part of the TECNIO network and offers support to businesses. It also has a quality management system for managing projects and handling incidents and the use of facilities. The research group's strategy mainly targets the materials engineering sectors in which it has expertise: metallurgy, transport, energy, biomedicine and education. Its most significant research lines are the following: mechanical behaviour, fracture, fatigue and corrosion of steels, titanium alloys and new alloys; advanced technical ceramics, nanostructured ceramics, resistance to degradation and surface modification; metal-ceramic composites, cemented carbides and fracture, fatigue and surface modification; and coatings, micromechanics and nanoindentation.

http://futur.upc.edu/CIEFMA

Enviaments recents

  • Influence of the microstructure on the thermal shock behavior of cemented carbides 

    Tarragó, Jose Maria; Dorvlo, Selassie; Esteve, Joan; Llanes Pitarch, Luis Miguel (2016-08-15)
    Article
    Accés restringit per política de l'editorial
    The influence of single and repetitive sudden changes of temperature on the mechanical integrity of cemented carbides was investigated as a function of their microstructure. Thermal shock resistance was assessed by testing ...
  • R-Curve approach to describe the fracture resistance of tool steels 

    Picas Anfruns, Ingrid; Casellas Padro, Daniel; Llanes Pitarch, Luis Miguel (2016-06)
    Article
    Accés restringit per política de l'editorial
    This work addresses the events involved in the fracture of tool steels, aiming to understand the effect of primary carbides, inclusions, and the metallic matrix on their effective fracture toughness and strength. ...
  • Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides 

    Tarrago, Jose Maria; Coureaux Mustelier, David; Torres, Yadir; Wu, F; Al-Dawery, Ihsan; Llanes Pitarch, Luis Miguel (2016)
    Article
    Accés restringit per política de l'editorial
    Linear intercept on scanning electron microscopy micrographs is the most commonly used measurement method to determine carbide grain size and contiguity in WC–Co cemented carbides (hardmetals). However, it involves manual ...
  • Grinding effects on surface integrity and mechanical strength of WC-Co cemented carbides 

    Yang, Jing; Oden, Magnus; Johansson-Jõesaar, M.P.; Llanes Pitarch, Luis Miguel (Elsevier, 2014)
    Article
    Accés obert
    In this study, the correlation existing among grinding, surface integrity, and flexural strength is investigated for WC-Co cemented carbides (hardmetals). A fine-grained WC-13 wt % Co grade and three different surface ...
  • Thermally induced surface integrity changes of ground WC-Co hardmetals 

    Yang, Jing; Roa, Joan Josep; Schwind, Martin; Oden, Magnus; Johansson-Jõesaar, M.P.; Esteve, Joan; Llanes Pitarch, Luis Miguel (Elsevier, 2016)
    Article
    Accés obert
    Ground hardmetals are exposed to high temperatures during both processing (e.g. coating deposition) and use (e.g. as a cutting tool). However, studies on thermally induced changes of surface integrity are limited. Here we ...
  • 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 ...
  • 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
    Accés restringit per política de l'editorial
    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 ...
  • Influence of microstructure and mechanical properties on the tribological behavior of reactive arc deposited Zr-Si-N coatings at room and high temperature 

    Yalamanchili, Kumar; Jiménez Piqué, Emilio; Pelcastre, L.; Roa Rovira, Joan Josep; Johansson Joesaar, M.P; Prakash, Bhanu; Ghafoor, N; Oden, M (Elsevier, 2016-10-25)
    Article
    Accés restringit per política de l'editorial
    Varying the Si-content in Zr-Si-N coatings from 0.2 to 6.3 at.% causes microstructural changes from columnar to nanocomposite structure and a hardness drop from 37 to 26 GPa. The softer nanocomposite also displays lower ...
  • 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 restringit per política de l'editorial
    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 ...
  • Growth and thermal stability of TiN/ZrAlN: Effect of internal interfaces 

    Yalamanchili, Kumar; Wang, Fei; Aboulfadl, Hisham; Barrirero, Jenifer; Rogstrom, Lina; Jiménez Piqué, Emilio; Mücklich, F.; Tasnadi, Ferenc; Oden, M; Ghafoor, N (2016-12-01)
    Article
    Accés restringit per política de l'editorial
    Wear resistant hard films comprised of cubic transition metal nitride (c-TMN) and metastable c-AlN with coherent interfaces have a confined operating envelope governed by the limited thermal stability of metastable phases. ...

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