Show simple item record

dc.contributor.authorLugo Chacón, Nayar Adolfo
dc.contributor.authorLlorca, N.
dc.contributor.authorSuñol Martinez, Juan Jose
dc.contributor.authorCabrera Marrero, José M.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.identifier.citationLugo, N. [et al.]. Thermal stability of ultrafine grains size of pure copper obtained by equal-channel angular pressing. "Journal of materials science", Maig 2010, vol. 45, núm. 9, p. 1573-4803.
dc.description.abstractUltrafine grain of pure copper 99.98% was produced by severe plastic deformation using the equalchannel angular pressing (ECAP) method. Copper samples were ECAPed from 1 to 8 passes following route BC; fine grain sizes of 250 nm were developed after eight passes. Important enhancement in the mechanical strength properties was obtained. Subsequent heat treatments (HT) were carried out to evaluate the thermal stability of the grains of the ECAPed samples. Microstructure and mechanical properties were evaluated to determine the recovery and recrystallization temperatures. Differential scanning calorimetry (DSC) tests were conducted to all samples in order to determinate these temperatures. The activation energy of the recrystallization process was also determined by the DSC technique and good correlation was obtained with the microstructure and mechanical properties. An important decrease in the mechanical properties and an increasing heterogeneous grain size distribution were observed when heat treatments were performed.
dc.format.extent3231 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials
dc.subject.lcshMaterials--Thermal properties
dc.titleThermal stability of ultrafine grains size of pure copper obtained by equal-channel angular pressing
dc.subject.lemacMaterials- Propietats tèrmiques
dc.contributor.groupUniversitat Politècnica de Catalunya. PROCOMAME - Processos de Conformació de Materials Metàl·lics
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorLugo, N.; Llorca, N.; Suñol, J.J.; Cabrera, J.
upcommons.citation.publicationNameJournal of materials science

Files in this item


This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder