Now showing items 21-40 of 42

    • 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 ...
    • Identification of fracture toughness parameters to understand the fracture resistance of advanced high strength sheet steels 

      Frómeta Gutiérrez, David; Parareda, Sergi; Lara, Antoni; Molas Busquets, Sílvia; Casellas Padró, Daniel; Jonsén, P.; Calvo Muñoz, Jessica (2020-04-15)
      Article
      Restricted access - publisher's policy
      The fracture toughness of four advanced high strength steel (AHSS) thin sheets is evaluated through different characterization methodologies, with the aim of identifying the most relevant toughness parameters to describe ...
    • 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 ...
    • 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
      Open Access
      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)
      Conference report
      Open Access
      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 the chemical composition on transformation behaviour of low carbon microalloyed steels 

      Calvo Muñoz, Jessica; Hung, I. H.; Elwazri, A. M.; Bai, D.; Yue, S. (2009)
      Article
      Restricted access - publisher's policy
      In order to design thermomechanical schedules for processing lowcarbon microalloyed steels, the various critical transformation temperatures, i.e. the start and finish of the austenite transformation (Ar3, Ar1) and the ...
    • Journal of Physics: Conference Series 

      Calvo Muñoz, Jessica; Frómeta Gutiérrez, David; Molas Busquets, Sílvia; Casellas Padró, Daniel (Institute of Physics (IOP), 2017)
      Article
      Open Access
      Lightweight designs and demanding safety requirements in automotive industry are increasingly promoting the use of Advanced High Strength Steel (AHSS) sheets. Such steels present higher strength (above 800 MPa) but lower ...
    • Metal injection moulding (MIM) as an alternative fabrication process for production of TWIP steel 

      García Aguirre, Karen Adriana; Felguera Jiménez, Juan Luis; Herranz Sánchez-Cosgalla, G.; Calvo Muñoz, Jessica; Benito Páramo, José Antonio; Cabrera Marrero, José M. (2019-05-01)
      Article
      Open Access
      Twinning Induced Plasticity (TWIP) steels, are high manganese austenitic steels which have experienced in the last decade a growing interest due to their unique combination of strength and elongation Nevertheless, the ...
    • Microstructural effects on fracture toughness of ultra-high strength dual phase sheet steels 

      Frómeta Gutiérrez, David; Cuadrado Lafoz, Nuria; Rehrl, Johannes; Suppan, Clemens; Dieudonné, Thomas; Dietsch, Pascal; Calvo Muñoz, Jessica; Casellas Padró, Daniel (2021-01-20)
      Article
      Open Access
      The influence of the microstructure on the fracture toughness of two industrially processed 1000 MPa dual-phase (DP) steel grades is investigated. Crack initiation and propagation resistance are evaluated by means of the ...
    • Microstructural evolution and constitutive equations of Inconel 718 alloy under quasi-static and quasi-dynamic conditions 

      Calvo Muñoz, Jessica; Cabrera Marrero, José M. (2016-03-15)
      Article
      Open Access
      The deformation behavior of IN718 superalloy was investigated using the hot compression tests in the temperature range of 950-1100 °C, and strain rates covering the quasi-static to the quasi-dynamic regions (0.001-10 s-1). ...
    • Microstructure and mechanical properties of linear friction welded titanium subjected to ECAP 

      Zhilyaev, Alexander P.; Kashaev, R. M.; Khusnullin, A. M.; Raab, G. I.; Calvo Muñoz, Jessica; Cabrera Marrero, José M. (2018-12)
      Article
      Restricted access - publisher's policy
      Commercially pure (Grade 4) titanium specimens with two types of microstructure (coarse-grained and nanostructured by means of equal channel angular pressing) were joined by linear friction welding ...
    • Novel method of severe plastic deformation - Continuous closed die forging: CP aluminum case study 

      Zhilyaev, Alexander P.; Rodriguez, Sandra; Calvo Muñoz, Jessica; Cabrera Marrero, José M. (2018-07)
      Article
      Open Access
      There is a large number of methods for severe plastic deformation (SPD). Multidirectional forging (MDF) is probably one of the most easily scalable for industrial application. ...
    • Nucleation and growth of precipitates in a V-microalloyed steel according to physical theory and experimental results 

      Medina Martin, Sebastián Florencio; Calvo Muñoz, Jessica; Cabrera Marrero, José M. (2020-01)
      Article
      Open Access
      Using a theoretical model, the nucleus number and nucleation time were determined for a V-microalloyed steel. The calculated data has made it possible to plot the nucleus number vs. temperature, nucleation critical time ...
    • On the correlation between fracture toughness and crash resistance of advanced high strength steels 

      Frómeta Gutiérrez, David; Lara, Antoni; Molas Busquets, Sílvia; Casellas Padró, Daniel; Rehrl, Johannes; Suppan, Clemens; Larour, Patrick; Calvo Muñoz, Jessica (2019-01-01)
      Article
      Restricted access - publisher's policy
      Automotive industry players have devoted large efforts to identify the material parameters governing the crash resistance of Advanced High Strength Steels (AHSS). Such knowledge is essential to improve impact performance ...
    • OptiLam: design of optimised rolling schedules 

      Peña, B.; Arribas, M.; Carrillo, A.R.; Barbero, J. I.; Calvo Muñoz, Jessica; Song, Yue (2011-05-01)
      Article
      Restricted access - publisher's policy
      Nowadays il is known that the Ihennomcchanical schedules applied during hot rolling of fIal products provide the steel with improvcd mechanical properties. In Ihis work an oplimisation tool, OptiLam (OptiLam v.l), bascd on ...
    • Phase transformation under thermal fatigue of high Mn-TWIP steel: Microstructure and mechanical properties 

      Roa Rovira, Joan Josep; Besharatloo, H.; Fargas Ribas, Gemma; Calvo Muñoz, Jessica; Mateo García, Antonio Manuel (2016-11-20)
      Article
      Open Access
      High Mn steels present both high tensile strength and good ductility, therefore they have attracted attention as promising candidates for the next-generation of automotive steels. However, slight changes during the ...
    • Plastic deformation and damage induced by fatigue inTWIP steels 

      Roa Rovira, Joan Josep; Fargas Ribas, Gemma; Calvo Muñoz, Jessica; Jiménez Piqué, Emilio; Mateo García, Antonio Manuel (2015-03-03)
      Article
      Open Access
      Twinning Induced Plasticity steels exhibit a high strain hardening rate which translates into a remarkable combination of ductility and strength. A thorough experimental approach was performed by advanced characterization ...
    • Strengthening of HSLA steels by cool deformation 

      Fatehi, A.; Calvo Muñoz, Jessica; Elwazri, A. M.; Yue, S. (2010)
      Article
      Restricted access - publisher's policy
      In microalloyed steels, the refinement of ferrite grains together with a controlled amount of precipitation has key roles in the mechanical properties improvement. Applying small amounts of deformation, at very low hot ...
    • Stress-strain response and microstructural evolution of a FeMnCAl TWIP steel during tension-compression tests 

      Benito Páramo, José Antonio; Cobo Molina, Raúl; Calvo Muñoz, Jessica; Cabrera Marrero, José M. (2016-02-08)
      Article
      Open Access
      © 2016. The stress-strain response of a Fe-17.5Mn-0.7C-2Al TWIP steel during cyclic loading has been investigated by means of tension-compression tests within the strain limits of ±2%, ±5% and ±10%. In addition, the ...
    • Tensile behavior and microstructure evolution of a TWIP steel processed by ECAP 

      Cabrera Marrero, José M.; Benito Páramo, José Antonio; Calvo Muñoz, Jessica (2016-11)
      Article
      Restricted access - publisher's policy
      The present study mainly focus on the infl uence of Equal Channel Angular Pressing (ECAP) on the mechanical properties, micros tructure, and the texture of a low carbon hi gh Mn TWIP steel. The results showed the HV hardness ...