Tensile and compressive test in nanocrystalline and ultrafine carbon steel

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.contributor	Universitat Politècnica de Catalunya. PROCOMAME - Processos de Conformació de Materials Metàl·lics
dc.contributor.author	Rodríguez Baracaldo, R.
dc.contributor.author	Benito Páramo, José Antonio
dc.contributor.author	Cabrera Marrero, José M.
dc.date	2010-09
dc.identifier.citation	Rodríguez, R.; Benito, J.; Cabrera, J. Tensile and compressive test in nanocrystalline and ultrafine carbon steel. "Journal of materials science", Setembre 2010, vol. 45, núm. 17, p. 4796-4804.
dc.identifier.citation	0022-2461
dc.identifier.citation	10.1007/s10853-010-4600-7
dc.identifier.uri	http://hdl.handle.net/2117/9924
dc.language.iso	eng
dc.relation	http://www.springerlink.com/content/n22u04p211525743/
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials
dc.subject	Carbon steel
dc.subject	Ductility
dc.subject	Ferrite
dc.subject	Steel, High strength
dc.subject	Acer al carboni
dc.subject	Ductilitat
dc.subject	Ferrita
dc.subject	Acer d'alta resistència
dc.title	Tensile and compressive test in nanocrystalline and ultrafine carbon steel
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	Plastic deformation behavior was investigated in near fully dense nanostructured and ultrafine-grained bulk samples of carbon steel (0.55 wt% C) under compression and tension tests. The specimens were obtained by hot pressure from mechanically milled powder at 400 and 500 0C. Subsequent heat treatments at temperatures going from 600 to 900 0C produced samples with ferrite grain sizes from 30 nm to 17 lm. Nanocrystalline grained steel samples presented very high strength with low ductility. Once, in the ultrafine range, as the ferritic grain size was increased, the strength was decreased and the ductility was improved. The porosity and carbon atoms within the structure were analyzed in order to explain the results of strength and strain obtained.

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