Show simple item record

dc.contributor.authorMejía, Ignacio
dc.contributor.authorBedolla Jacuinde, Arnoldo
dc.contributor.authorMaldonado, Cuauhtémoc
dc.contributor.authorCabrera Marrero, José M.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2011-05-25T14:21:50Z
dc.date.available2011-05-25T14:21:50Z
dc.date.created2011-05-15
dc.date.issued2011-05-15
dc.identifier.citationMejía, I. [et al.]. Determination of the critical conditions for the initiation of dynamic recrystallization in boron microalloyed steels. "Materials science and engineering A. Structural materials properties microstructure and processing", 15 Maig 2011, vol. 528, núm. 12, p. 4133-4140.
dc.identifier.issn0921-5093
dc.identifier.urihttp://hdl.handle.net/2117/12649
dc.description.abstractFrom the present research, the critical conditions associated with the onset of dynamic recrystallization (DRX) of hot deformed boron microalloyed steels were precisely determined based on changes in the strain hardening rate ( ) as a function of the flow stress. For this purpose, a low carbon steel microalloyed with four different amounts of boron (29, 49, 62 and 105 ppm) was deformed by uniaxial hot-compression tests at high temperature (950, 1000, 1050 and 1100 ◦C) and constant true strain rate (10−3, 10−2 and 10−1 s−1). Results indicate that the critical conditions for the initiation of dynamic recrystallization depend on the temperature and strain rate. In addition, both critical stress c, and critical strain εc, were noticed to decrease as boron content increased. Such a behavior is attributed to a solute drag effect by boron atoms on the austenitic grain boundaries and also to a solid solution softening effect. The critical ratios c/ p and εc/εp for all boron microalloyed steels remain fairly constant (≈0.82 and ≈0.53, respectively), such values are in agreement with those commonly reported for Al-killed, C–Mn, Nb, Nb–Ti, high carbon and stainless steels.
dc.format.extent8 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
dc.subject.lcshMaterials science
dc.titleDetermination of the critical conditions for the initiation of dynamic recrystallization in boron microalloyed steels
dc.typeArticle
dc.subject.lemacCristal·lografia
dc.subject.lemacDeformacions i tensions
dc.subject.lemacRecristal·lització (Metal·lúrgia)
dc.contributor.groupUniversitat Politècnica de Catalunya. PROCOMAME - Processos de Conformació de Materials Metàl·lics
dc.identifier.doi10.1016/j.msea.2011.01.102
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://linkinghub.elsevier.com/retrieve/pii/S0921509311001249
dc.rights.accessRestricted access - publisher's policy
drac.iddocument5602304
dc.description.versionPostprint (published version)
upcommons.citation.authorMejía, I.; Bedolla-Jacuinde, A.; Maldonado, C.; Cabrera, J.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameMaterials science and engineering A. Structural materials properties microstructure and processing
upcommons.citation.volume528
upcommons.citation.number12
upcommons.citation.startingPage4133
upcommons.citation.endingPage4140


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain