A combinatorial study of the mechanical and magnetic properties of a gradually nitrided austenitic stainless steel single crystal
Menéndez Dalmau, Enric (Institut Català de Nanociència i Nanotecnologia)
Templier, C. (Université de Poitiers. Institut Pprime)
Abrasonis, G. (Das Helmholtz-Zentrum Dresden-Rossendorf. Institut für Ionenstrahlphysik und Materialforschung)
López-Barbera, José Francisco (Institut Català de Nanociència i Nanotecnologia)
Nogués, Josep (Institut Català de Nanociència i Nanotecnologia)
Temst, Kristiaan (KU Leuven. Instituut voor Kern- en Stralingsfysica)
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)

Date:	2014
Abstract:	The mechanical and magnetic properties of a nitrided austenitic stainless steel are studied using a combinatorial approach. Plasma nitriding of a [100]-oriented 316L single crystal is carried out using a loose shadow mask to produce an in-plane lateral gradient of nitrogen concentration that extends up to 100 μm. The local mechanical and magnetic properties across the gradually nitrided area are resolved by nanoindentation and the polar magneto-optic Kerr effect, respectively. The hardness, reduced Young's modulus and remanence qualitatively depict the nitrogen profile, suggesting that the nitrogen concentration is a central effect for these observed dependencies. Conversely, the coercivity exhibits a non-monotonic behaviour due to the interplay between magnetic anisotropy and the strength of the induced ferromagnetism. Fingerprints of the expected transition from a nitrogen supersaturated solid solution to a multiphase nature of expanded austenite are evidenced along the gradually nitrided area. © 2014 the Partner Organisations.
Grants:	Ministerio de Economía y Competitividad MAT2011-27380-C02-01 Ministerio de Economía y Competitividad MAT2010-20616-C02 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-1292
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	CrystEngComm, Vol. 16, issue 17 (May 2014) , p. 3515-3520, ISSN 1466-8033

DOI: 10.1039/c3ce42379d

6 p, 2.2 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles