Browsing by Author "Higuera Cobos, Oscar Fabián"
Now showing items 1-19 of 19
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Analysis of the micro and substructural evolution during severe plastic deformation of ARMCO iron and consequences in mechanical properties
Muñoz Bolaños, J.A.; Higuera Cobos, Oscar Fabián; Benito Páramo, José Antonio; Bradai, Djamel; Khelfa, T.; Cabrera Marrero, José M. (2019-01-07)
Article
Restricted access - publisher's policyARMCO iron processed by ECAP up to a maximum equivalent strain of sixteen ECAP passes following route Bc was investigated by Electron Back Scattering Diffraction (EBSD), Transmission Electron Microscopy (TEM), TEM-EBSD and ... -
Calorimetric analysis of a Mg-Zn-Zr alloy processed by equal channel angular pressing via route A
Dumitru, Florina Diana; Ghiban, Brândusa; Cabrera Marrero, José M.; Higuera Cobos, Oscar Fabián; Gurau, Gheorghe; Ghiban, Nicolae (2014)
Article
Restricted access - publisher's policyBeing the lightest structural element, magnesium a nd its alloys has attracted significant interest in the last years, but because of its hexa gonal close packed structure, magnesium presents relatively low strength ... -
Dislocation study of ARMCO iron processed by ECAP
Muñoz Bolaños, Jairo Alberto; Higuera Cobos, Oscar Fabián; Cabrera Marrero, José M. (2016)
Article
Open AccessThe aim of this work was to study the deformation behavior of an Armco iron after severe plastic deformation by equal channel angular pressing (ECAP). Particular attention was paid to predict the dislocation density by ... -
Electropulsing effects on mechanical and metallurgical behavior of AISI-SAE 4140 steel
Montilla Montaña, Carlos A.; González Rojas, Hernan Alberto; Higuera Cobos, Oscar Fabián; Kallewaard, Valentina; Sánchez Egea, Antonio J (2018-10-02)
Article
Open AccessThe electroplasticity phenomenon (EP) produces changes in the mechanical properties of a metal, due to the simultaneous application of mechanical stresses of compression, bending, etc., and high instantaneous current pulses. ... -
Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
Muñoz Bolaños, Jairo Alberto; Higuera Cobos, Oscar Fabián; Tartalini, Vanina; Risso, Pablo; Avalos, Martina Cecilia; Bolmaro, Raúl (2019-06)
Article
Open AccessWe study the deformation inducing heterogeneity in an aluminum alloy 6063-T6 in the form of a sheet processed at room temperature by equal channel angular sheet extrusion (ECASE) up to a maximum equivalent strain of 1.86 ... -
Estudio del fenómeno de electroplasticidad atérmica en el comportamiento mecánico y metalúrgico del acero AISI-SAE 4140 ensayado a tracción
Montilla Montaña, Carlos A.; González Rojas, Hernan Alberto; Higuera Cobos, Oscar Fabián; Kallewaard, Valentina; Sánchez Egea, Antonio José (2018)
Conference report
Open AccessEl fenómeno de electroplasticidad (EP por sus siglas en inglés) consiste en el cambio de las propiedades mecánicas de un metal, debido a la aplicación simultánea de esfuerzos mecánicos de tracción, compresión, flexión, ... -
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 AccessThe 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 ... -
Inducing heterogeneity in an austenitic stainless steel by equal channel angular sheet extrusion (ECASE)
Muñoz Bolaños, Jairo Alberto; Higuera Cobos, Oscar Fabián; M'Doihoma, Rose; Avalos, Martina Cecilia; Bolmaro, Raúl (Elsevier, 2019-04)
Article
Open AccessAn austenitic stainless steel was processed at room temperature by equal channel angular sheet extrusion (ECASE). The microstructure evolution was heterogeneous across the sheet thickness with a higher martensitic ... -
Mechanical, microstructural and electrical evolution of commercially pure copper processed by equal channel angular extrusion
Higuera Cobos, Oscar Fabián; Cabrera Marrero, José M. (2013-06-01)
Article
Restricted access - publisher's policySamples of commercially pure copper (ETP copper) were subjected to equal-channel angular pressing (ECAP) for up to 16 passes at room temperature following route Bc. Microstructural evolution was determined by oriented image ... -
Microstructural and calorimetric analysis of ZK60 alloy processed by ECAP
Dumitru, Florina Diana; Ghiban, Brândusa; Cabrera Marrero, José M.; Higuera Cobos, Oscar Fabián; Gurau, Gheorghe; Ghiban, Nicolae (2013)
Article
Restricted access - publisher's policyIn the last years many research efforts have been made in order to extend the application of wrought magnesium to structural components. One of the methods to improve the mechanical properties of the processed materials ... -
Microstructural and mechanical study in the plastic zone of ARMCO iron processed by ECAP
Muñoz Bolaños, Jairo Alberto; Higuera Cobos, Oscar Fabián; Cabrera Marrero, José M. (2017-06-14)
Article
Open AccessPlastic deformation of ARMCO iron processed by ECAP up to a maximum equivalent strain of sixteen (i.e., 1, 4, 8, and 16 ECAP passes) following route Bc was investigated by analyzing its microstructure and the stress-strain ... -
Microstructure influencing physical and mechanical properties of electrolytic tough pitch copper produced by equal channel angular pressing
Higuera Cobos, Oscar Fabián; Cabrera Marrero, José M. (2013-11)
Article
Restricted access - publisher's policySamples of electrolytic tough pitch (ETP) copper were subjected to equal-channel angular pressing (ECAP) for up to 16 passes at room temperature following route Bc. The microstructural evolution was followed by Oriented ... -
Relación microestructura y propiedades de cobre sometido a deformación plástica severa mediante presión en canal angular de sección constante
Higuera Cobos, Oscar Fabián (Universitat Politècnica de Catalunya, 2013-07-12)
Doctoral thesis
Open AccessMuestras de cobre electrolítico (ETP) y refinado al fuego (FRHC) previamente recocidas durante 30 minutos a una temperatura de 600 ºC, fueron sometidas a presión en canal angular de sección constante (ECAP) a temperatura ... -
Strain hardening behavior of ARMCO iron processed by ECAP
Cabrera Marrero, José M.; Muñoz Bolaños, Jairo Alberto; Higuera Cobos, Oscar Fabián (Institute of Physics (IOP), 2014-07)
Article
Open AccessThe strain hardening behavior of an ARMCO iron processed by ECAP at room temperature up to sixteen passes following route Bc was investigated through Hollomon and differential Crussard-Jaoul models. Results indicate that ... -
Texture analysis in ultrafine grained copper processed by equal channel angular pressing
Higuera Cobos, Oscar Fabián; Cabrera Marrero, José M. (2013-05)
Article
Restricted access - publisher's policyElectrolytic tough pitch (ETP) and fire refined high conductivity (FRHC) copper samples were severely deformed at room temperature by equal channel angular pressing (ECAP) up to 16 passes (e ~ 1 per pass), following route ... -
Texture analysis in ultrafine grained coppers processed by equal channel angular pressing
Higuera Cobos, Oscar Fabián; Cabrera Marrero, José M. (2013-05)
Article
Open AccessElectrolytic tough pitch (ETP) and fire refined high conductivity (FRHC) copper samples were severely deformed at room temperature by equal channel angular pressing (ECAP) up to 16 passes ( ε ~ 1 per pass), following ... -
Texture and fatigue behavior of ultrafine grained copper produced by ECAP
Higuera Cobos, Oscar Fabián; Berríos-Ortiz, Jonathan Antonio; Cabrera Marrero, José M. (2014-07)
Article
Restricted access - publisher's policyElectrolytic Tough Pitch (ETP) and Fire Refined High Conductivity (FRHC) copper samples were severely deformed by equal channel angular pressing (ECAP) and the effect of plastic deformation on the microstructure, texture ... -
Thermal stability of ARMCO iron processed by ECAP
Muñoz Bolaños, J.A.; Higuera Cobos, Oscar Fabián; Hernández Expósito, Ana; Boulaajaj, Ahmed; Cabrera Marrero, José M. (2018-10-01)
Article
Open AccessThe thermal stability of ARMCO iron processed by equal-channel angular pressing (ECAP) up to a true strain of 16 was investigated by differential scanning calorimetry (DSC). Particularly, the analysis was focused on deriving ... -
ZK60 alloy processed by ECAP: Microstructural, physical and mechanical characterization
Dimitru, F.D; Higuera Cobos, Oscar Fabián; Cabrera Marrero, José M. (2014-01-31)
Article
Restricted access - publisher's policyLately, magnesium alloys have been extensively investigated through severe plastic deformation (SPD) methods in order to extend their application to structural components. In the present work, as-extruded ZK60 magnesium ...