Dynamic deformation of metastable austenitic stainless steels at the nanometric length scale

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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. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials
dc.contributor.author	Roa Rovira, Joan Josep
dc.contributor.author	Sapezanskaia, Ina
dc.contributor.author	Fargas Ribas, Gemma
dc.contributor.author	Kouiat, R.
dc.contributor.author	Redjaïmia, Abdelkrim
dc.contributor.author	Mateo García, Antonio Manuel
dc.date	2018-09-17
dc.identifier.citation	Roa, J.J., Sapezanskaia, I., Fargas, G., Kouiat, R., Redjaïmia, A., Mateo, A. Dynamic deformation of metastable austenitic stainless steels at the nanometric length scale. "Metallurgical and materials transactions A-Physical metallurgy and material", 17 Setembre 2018, vol. 49, núm. 12, p. 6034-6039.
dc.identifier.citation	1073-5623
dc.identifier.citation	10.1007/s11661-018-4911-x
dc.identifier.uri	http://hdl.handle.net/2117/125795
dc.language.iso	eng
dc.relation	https://link.springer.com/article/10.1007%2Fs11661-018-4911-x
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials
dc.subject	Stainless steel
dc.subject	Transmission electron microscopy
dc.subject	metastable stainless steels
dc.subject	cyclic nanoindentation tests
dc.subject	transmission electron microscopy
dc.subject	time-dependent
dc.subject	plastic deformation
dc.subject	ratcheting effect
dc.subject	Acer inoxidable
dc.title	Dynamic deformation of metastable austenitic stainless steels at the nanometric length scale
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	Cyclic indentation was used to evaluate the dynamic deformation on metastable steels, particularly in an austenitic stainless steel, AISI 301LN. In this work, cyclic nanoindentation experiments were carried out and the obtained loading-unloading (or P-h) curves were analyzed in order to get a deeper knowledge on the time-dependent behavior, as well as the main deformation mechanisms. It was found that the cyclic P-h curves present a softening effect due to several repeatable features (pop-in events, ratcheting effect, etc.) mainly related to dynamic deformation. Also, observation by transmission electron microscopy highlighted that dislocation pile-up is the main responsible of the secondary pop-ins produced after certain cycles.
dc.description.abstract	Peer Reviewed

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