Now showing items 41-60 of 123

  • Enhancing ductility of ECAP processed metals 

    Llorca Isern, Núria; Grosdidier, Thierry; Cabrera Marrero, José M. (2010)
    Article
    Restricted access - publisher's policy
    Mechanical properties such as hardness, mechanical strength or fatigue resistance are by far the most successful material behaviour improved by the ECAP processed. However, the lack of ductility is the most critical negative ...
  • Equal channel angular pressing of a TWIP steel: microstructure and mechanical response 

    Wang, Lixin; Benito Páramo, José Antonio; Calvo Muñoz, Jessica; Cabrera Marrero, José M. (Springer, 2017-06-01)
    Article
    Open Access
    A Fe–20.1Mn–1.23Si–1.72Al–0.5C TWIP steel with ultrafine grain structure was successfully processed through equal channel angular pressing (ECAP) at warm temperature up to four passes following the BC route. The microstructure ...
  • Equal channel angular pressing of Cu-Al bimetallic rods 

    Llorca Isern, Núria; Escobar, Ana Maria; Roca, Antoni; Cabrera Marrero, José M. (2012)
    Article
    Restricted access - publisher's policy
    Coextrusion and corolling are the major processes to produce bimetallic rods, tubes and wires, the objective being to perform clad metals, bimetallic joints or seals. The aim of the present work is to produce bimetallic ...
  • Estudio macro-micro en un acero de bajo contenido de carbono obtenido con el proceso de colada continua 

    Acevedo, Jorge; Cabrera Marrero, José M. (2013-10)
    Article
    Restricted access - publisher's policy
    En una palanquilla de acero (0.075%C, 0.017%Si, 1.186%Mn, 0.052%P, 0.271%S y 0.075%Cr) fabricada con el proceso de colada continua, se simula con el método de los elementos finitos la transferencia de calor y la microestructura ...
  • Grain growth behaviour of an AISI 422 martensitic stainless steel after hot deformation process 

    Ahmadabadi, R. Mohammadi; Naderi, M.; Mohandesi, J. Aghazadeh; Cabrera Marrero, José M. (2018-04-03)
    Article
    Open Access
    The metadynamic softening behaviour and grain size refinement of an AISI 422 martensitic stainless steel in the temperature range of 950–1150°C was investigated by double-hit compression tests. The deformed specimens were ...
  • High cycle fatigue of ARMCO iron severely deformed by ECAP 

    Muñoz Bolaños, Jairo Alberto; Higuera Cobos, Oscar Fabián; Cabrera Marrero, José M. (2017-01-10)
    Article
    Open Access
    The high-cycle fatigue behavior of ARMCO iron severely deformed by Equal Channel Angular Pressing (ECAP) at room temperature through route Bc until 8 passes, with an average grain size of ~365 nm, was studied and compared ...
  • High-pressure torsion of iron with various purity levels and validation of Hall-Petch strengthening mechanism 

    Tejedor Busquets, Robert; Edalati, Kaveh; Benito Páramo, José Antonio; Horita, Zenji; Cabrera Marrero, José M. (2019-01-16)
    Article
    Restricted access - publisher's policy
    Impurity atoms have a significant effect on the strength of metals processed by severe plastic deformation (SPD), but their strengthening mechanism is still under argument. To gain an insight into the strengthening ...
  • High-temperature deformation of delta-processed Inconel 718 

    Páramo-Kañetas, Pedro; Ozturk, Utkudeniz; Calvo Muñoz, Jessica; Cabrera Marrero, José M.; Guerrero Mata, Martha P. (2018-05-01)
    Article
    Restricted access - publisher's policy
    © 2017 Elsevier B.V. The hot-flow behavior of Inconel 718 subjected to delta processing (DP) was analyzed. Hot compression tests were subsequently performed at 960 °C and 1020 °C at the four different strain rates of 0.001, ...
  • High-temperature deformation of Inconel 718Plus (TM) 

    Ozturk, Utkudeniz; Cabrera Marrero, José M.; Calvo, Jessica (2017-03-01)
    Article
    Restricted access - publisher's policy
    Since its introduction in 2003, alloy 718PlusTM spurred a lot of interest owing to its increased maximum service temperature over conventional Inconel 718 (704¿°C versus 650¿°C), good formability, and weldability together ...
  • Hot deformation activation energy (QHW) of austenitic Fe-22Mn-1.5Al-1.5Si-0.4C TWIP steels microalloyed with Nb, V, and Ti 

    Reyes Calderón, F.; Mejía Granados, Ignacio; Cabrera Marrero, José M. (2013)
    Article
    Restricted access - publisher's policy
    The activation energy for hot deformation ( Q HW ) of high-Mn microalloyed TWIP steels was determined from experimental uniaxial hot compression curves. The presence of microalloying elements such as Nb, V, and Ti, ...
  • Hot deformation behavior, dynamic recrystallization, and physically-based constitutive modeling of plain carbon steels 

    Saadatkia, Sepideh; Mirzadeh, Hamed; Cabrera Marrero, José M. (2015-04)
    Article
    Open Access
    The high-temperature deformation behaviors of low and medium carbon steels with respectively 0.06 and 0.5 wt% C were investigated under strain rate and temperature ranges of 10-4–10-1 s-1 and of 900–1100 °C. Three types ...
  • Hot ductility behavior of a low carbon advanced high strength steel (AHSS) microalloyed with boron 

    Mejía, Ignacio; Bedolla Jacuinde, Arnoldo; Maldonado, Cuauhtémoc; Cabrera Marrero, José M. (2011-05-24)
    Article
    Restricted access - publisher's policy
    The current study analyses the influence of boron addition on the hot ductility of a low carbon advanced high strength NiCrVCu steel. For this purpose hot tensile tests were carried out at different temperatures (650, ...
  • Hot ductility behavior of high-Mn austenitic Fe-22Mn-1.5Al-1.5Si-0.45C TWIP steels microalloyed with Ti and V 

    Salas-Reyes, A. E.; Mejía, Ignacio; Bedolla Jacuinde, Arnoldo; Boulaajaj, Ahmed; Calvo Muñoz, Jessica; Cabrera Marrero, José M. (2014-07)
    Article
    Restricted access - publisher's policy
    This research work studies the influence of microalloying elements (Ti and V) and the solidification route on the hot ductility behavior of high-manganese TWIP steels. Uniaxial hot tensile tests in the temperature range ...
  • Hot working analysis of a CuZn40Pb2 brass on the monophasic (beta) and intercritical (alpha plus beta) regions 

    Suarez, L.; Rodríguez Calvillo, Pablo; Cabrera Marrero, José M.; Martinez Romay, A; Majuelos Mallorquin, D (2015-03-11)
    Article
    Open Access
    The high temperature deformation behavior of a Cu4OZn2Pb brass was studied by means of compression and tensile tests in the beta monophasic and alpha/beta biphasic regions. The ductility evaluated in terms of elongation ...
  • Identification of undeformed/deformed FeSi oxides scales by EBSD 

    Suárez Fernández, Lucía; Rodríguez Calvillo, Pablo; Cabrera Marrero, José M.; Schneider, Jurgen; Jungnickel, W (2010)
    Conference lecture
    Open Access
  • Influence of boron content on the fracture toughness and fatigue crack propagation kinetics of bainitic steels 

    Rodriguez Galeano, Karol-Felipe; Rodríguez Baracaldo, Rodolfo; Mestra Rodríguez, Álvaro Miguel; Cabrera Marrero, José M.; Olaya Florez, Jhon Jairo (2016-12-01)
    Article
    Open Access
    The relatively good combination of high strength and ductility makes bainitic steels a candidate to replace many other steels in industrial applications. However, in service, ductility and strength are not up to standard ...
  • Influence of chemical composition and tempering treatment on toughness of bainitic 38MnV7 steel 

    Rancel, Lucia; Gómez, Manuel; Cabrera Marrero, José M.; Medina, Sebastián F. (2012)
    Article
    Open Access
    This work studies the influence of Mn and the V/N ratio on the toughness of 38MnV7 steel. Four steels with different Mn, N and Ti contents were studied. Lowering the Mn content to approximately 1.5% considerably enhanced ...
  • Influence of composition, grain size and iron oxide particles on the strength of consolidated ball-milled iron 

    Benito Páramo, José Antonio; Casas Quesada, Casimir; Cabrera Marrero, José M. (2014)
    Conference lecture
    Open Access
    In this paper iron powders with two oxygen content (0.2 and 0.6% wt.) have been mechanically milled and consolidated by hot static pressing at different temperatures to obtain different grain sizes. At lower temperatures ...
  • Influence of composition, grain size, and oxide particles on the strength of consolidated ball-milled iron 

    Benito Páramo, José Antonio; Cabrera Marrero, José M.; Casas, C.; Gregoire, V. (Institute of Physics (IOP), 2014-07)
    Article
    Open Access
    In this paper iron powders with two oxygen content (0.2 and 0.6% wt.) have been mechanically milled and consolidated by hot static pressing at different temperatures to obtain different grain sizes. At lower temperatures ...
  • Influence of grain refinement method on mechanical behavior and texture of TWIP steels 

    Wang, Liang; Benito Páramo, José Antonio; Calvo Muñoz, Jessica; Cabrera Marrero, José M. (2016-08-25)
    Article
    Restricted access - publisher's policy
    Austenitic high-Mn (15%-30%) steels showing twinning-induced plasticity (TWIP) provide great potential in applications for structural components in the automotive industry, owing to their excellent tensile strength-ductility ...