CIEFMA és un grup de recerca consolidat de la UPC amb l'objectiu de realitzar ciències bàsiques i investigacions industrials aplicades en l'àmbit de la integritat estructural, la micromecànica i la fiabilitat dels materials d'enginyeria. Les principals competències bàsiques de CIEFMA es defineixen mitjançant: (1) la seva capacitat per avaluar i comprendre amb èxit la integritat mecànica i la fiabilitat dels materials objectiu de CIEFMA (ceràmica base de zirconi, acers inoxidables i d'alta resistència, aliatges de base Ti, composites de ceràmica i metall - especialment carburs cimentats i recobriments durs) a diferents escales de longitud; i (2) el seu potencial per implementar processos avançats per optimitzar el disseny microestructural i / o la funcionalitat de sistemes de materials específics. Dins del marc esmentat, l'excel·lència en la recerca, la internacionalització i la transferència eficaç de coneixement són pilars transversals, vinculats a enfocaments "multidisciplinaris" i "intersectorials", per definir els objectius estratègics de CIEFMA; i, per tant, la seva activitat científica.

CIEFMA es un grupo de investigación consolidado de la UPC que tiene como objetivo realizar estudios de ciencia básica e investigación industrial aplicada en el campo de la integridad estructural, micromecánica y confiabilidad de los materiales de ingeniería. Las principales competencias básicas de CIEFMA se definen por (1) su capacidad para evaluar y comprender con éxito la integridad mecánica y la confiabilidad de los materiales de CIEFMA (cerámicas con base de circonia, aceros inoxidables y de alta resistencia, aleaciones con base de Ti, compuestos de cerámica y metal) particularmente carburos cementados (y recubrimientos duros) a diferentes escalas de longitud; y (2) su potencial para implementar procesamiento avanzado hacia la optimización del diseño microestructural y / o la funcionalidad de sistemas de materiales específicos. Dentro del marco anterior, la excelencia en la investigación, la internacionalización y la transferencia efectiva de conocimientos son pilares transversales, vinculados a través de enfoques “multidisciplinarios” e “intersectoriales”, para definir los objetivos estratégicos de CIEFMA; Y así, su actividad científica.

CIEFMA is a UPC’s consolidated research group aiming to conduct basic science and applied industrial research within the field of Structural Integrity, Micromechanics and Reliability of Engineering Materials. CIEFMA’s main core competences are defined by (1) its capability for successful assessment and understanding of mechanical integrity and reliability of CIEFMA-target materials (zirconia-base ceramics, stainless and high-strength steels, Ti-base alloys, ceramic-metal composites - particularly cemented carbides - and hard coatings) at different length scales; and (2) its potential for implementing advanced processing towards optimizing microstructural design and/or functionality of specific material systems. Within the above framework, research excellence, internationalization and effective knowledge transfer are transversal pillars, linked through “multidisciplinary” and “inter-sectorial” approaches, for defining CIEFMA’s strategic objectives; and thus, its scientific activity.

CIEFMA is a UPC’s consolidated research group aiming to conduct basic science and applied industrial research within the field of Structural Integrity, Micromechanics and Reliability of Engineering Materials. CIEFMA’s main core competences are defined by (1) its capability for successful assessment and understanding of mechanical integrity and reliability of CIEFMA-target materials (zirconia-base ceramics, stainless and high-strength steels, Ti-base alloys, ceramic-metal composites - particularly cemented carbides - and hard coatings) at different length scales; and (2) its potential for implementing advanced processing towards optimizing microstructural design and/or functionality of specific material systems. Within the above framework, research excellence, internationalization and effective knowledge transfer are transversal pillars, linked through “multidisciplinary” and “inter-sectorial” approaches, for defining CIEFMA’s strategic objectives; and thus, its scientific activity.

Recent Submissions

  • Design of alternative binders for hard materials 

    Nicolás, M. de; Besharatloo, Hossein; Alvaredo Olmos, Paula; Roa Rovira, Joan Josep; Llanes Pitarch, Luis Miguel; Gordo Odériz, Elena (2020-02-01)
    Article
    Restricted access - publisher's policy
    In the last years, a special interest has emerged towards the total or partial substitution of traditional cemented carbides composing elements. In this study, a systematic methodology is presented and used to design ...
  • Influence of the processing route on the properties of Ti(C,N)-Fe15Ni cermets 

    Nicolás Morillas, Maria de; Besharatloo, Hossein; Wheeler, J.M.; Dios Pérez, Miguel de; Alvaredo Olmos, Paula; Roa Rovira, Joan Josep; Ferrari, B; Llanes Pitarch, Luis Miguel; Gordo Odériz, Elena (2020-02-01)
    Article
    Restricted access - publisher's policy
    This study aims to understand the influence of powder preparation and processing steps on the microstructure and properties of Ti(C,N)-Fe15Ni cermets with 70 and 80 vol% of ceramic phase. Two routes were used for powder ...
  • Epoxy-silica/clay nanocomposite for silver-based antibacterial thin coatings: structure and ionic mobility 

    Giraldo Mejía, Hugo Fernando; Jiménez Piqué, Emilio; Valdés, Matías; Procaccini, Raúl; Pellice, Sergio (2020-07-28)
    Article
    Restricted access - publisher's policy
    A novel material was developed using sol-gel chemistry and an environmental-friendly grafting process of clay nanoparticles. In a previous work of our group, highly compact coatings had been generated using silicon alkoxides, ...
  • Influence of the microstructure on corrosion induced damage of WC-Co cemented carbides 

    Fargas Ribas, Gemma; Sosa, D.; Tarragó, José María; Tarrés Puit, Elena; Fair, Jonathan; Llanes Pitarch, Luis Miguel (2020-05-27)
    Article
    Restricted access - publisher's policy
    The main goal of the present work is to study the influence of the microstructure on the corrosion behavior of cemented carbides WC-Co in two corrosive media. Corrosion kinetics were determined by immersion tests while the ...
  • Influence of grinding/polishing on the mechanical, phase stability and cell adhesion properties of yttria-stabilized zirconia 

    Minguela Díaz, Joaquim; Ginebra Molins, Maria Pau; Llanes Pitarch, Luis Miguel; Mas Moruno, Carlos; Roa Rovira, Joan Josep (Elsevier, 2020-09)
    Article
    Restricted access - publisher's policy
    The changes in mechanical properties, hydrothermal degradation and cell adhesion were studied in 3Y-TZP under two different superficial modification patterns (uni- and multidirectional) with a surface roughness ranging ...
  • Indentation and scratch testing of a WC-6%wtCo cemented carbide: Corrosion effects on load-bearing capability and induced damage 

    Zheng, Yafeng; Fargas Ribas, Gemma; Lavigne, Olivier; Llanes Pitarch, Luis Miguel (2020-04-10)
    Article
    Restricted access - publisher's policy
    In this work, corrosion effects on the indentation and scratch response of a WC-6%Co hardmetal are investigated. Experimental variables include relative long corrosion times as well as indentation and scratch testing ...
  • Compositionally-tailored steel-based materials manufactured by electron beam melting using blended pre-alloyed powders 

    Koptyug, Andrey; Popov Jr., Vladimir V.; Botero Vega, Carlos Alberto; Jiménez Piqué, Emilio (2020-01-13)
    Article
    Restricted access - publisher's policy
    The paper presents the prospects of additive manufacturing (AM) in metal, using the powder bed fusion (PBF) method Electron Beam Melting (EBM) in fabrication specific steel-based alloys for different applications. The ...
  • Influence of the test configuration and temperature on the mechanical behaviour of WC-Co 

    González, Luis M.; Chicardi, E; Gotor Martínez, Francisco José; Bermejo, Raul; Llanes Pitarch, Luis Miguel; Torres, Yadir (Multidisciplinary Digital Publishing Institute (MDPI), 2020-03-01)
    Article
    Open Access
    In this work, the effect of the test configuration and temperature on the mechanical behaviour of cemented carbides (WC-Co) with different carbide grain sizes (dWC) and cobalt volume fractions (VCo), implying different ...
  • 3M en pantalla (mitos y mentiras sobre metales en pantalla) 

    Salán Ballesteros, Maria Núria; Montalà Guitart, Francesc; Sureda Anfres, Miquel (Sociedad Española de Materiales, 2020-05)
    Article
    Open Access
    Los metales han formado parte de la evolución de la humanidad desde la antigüedad. Han sido objeto de culto, por escasos y exclusivos, y han sido la clave del desarrollo de armas, para, progresivamente, formar parte de los ...
  • Contact damage investigation of CVD carbonitride hard coatings deposited on cemented carbides 

    El Azhari, Idriss; García, José; Soldera, Flavio; Suárez, Sebastian; Jiménez Piqué, Emilio; Mücklich, Frank T.; Llanes Pitarch, Luis Miguel (2020-01-01)
    Article
    Restricted access - publisher's policy
    The evolution of damage induced as contact load is increased has been investigated on single- and multilayered coated cemented carbides by means of spherical indentation. The main objective of the study was to assess the ...
  • Micromechanical investigations of CVD coated WC-Co cemented carbide by micropillar compression 

    El Azhari, Idriss; García, José Luis; Zamanzade, Mohammad; Soldera, Flavio; Pauly, Christoph; Motz, Christian; Llanes Pitarch, Luis Miguel; Mücklich, Frank T. (Elsevier, 2020-01-15)
    Article
    Open Access
    Deformation behavior of an industrial coated cemented carbide (WC-Co substrate coated with CVD multilayer of TiN/Zr(C,N)/Ti(C,N,O)/Al2O3) was investigated by means of micropillar compression method. In addition to the WC-Co ...
  • In-depth understanding of fatigue micromechanisms in cemented carbides: implications for optimal microstructural tailoring 

    Llanes Pitarch, Luis Miguel (Multidisciplinary Digital Publishing Institute (MDPI), 2019-08-21)
    Other
    Open Access
    The fatigue mechanics and mechanisms of cemented carbides (composites usually referred to as hardmetals) are reviewed. The influence of microstructure on strength lessening and subcritical crack growth for these ceramic-metal ...

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