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dc.contributor.author
Steimbreger, Ceferino
dc.contributor.author
Vuorinen, Esa
dc.contributor.author
Johansson, Pernilla
dc.date.available
2016-12-28T15:13:54Z
dc.date.issued
2015-06-02
dc.identifier.citation
Steimbreger, Ceferino; Vuorinen, Esa; Johansson, Pernilla; Wear analysis of PM compacts with bainitic microstructures, under unlubricated sliding conditions; Elsevier; Procedia Materials Science; 9; 2-6-2015; 578-589
dc.identifier.issn
2211-8128
dc.identifier.uri
http://hdl.handle.net/11336/10424
dc.description.abstract
Ferrous and non-ferrous alloys can be processed by PM. Complex shapes and good surface finishes can be achieved, leading to promising applications, if mechanical properties are demonstrated to be high enough. At the same time, both bainitic and carbide free bainitic microstructures have proved to be excellent candidates for wear applications. Therefore, the aims of this project were steered towards analysing wear behaviour of PM compacts, in relation to their bainitic microstructures.Three materials were employed and two conditions were taken into account: materials before and after austempering. A reference material was considered, corresponding to Distaloy DC with Mo and Ni. Microstructure was analysed in all the cases by means of optical and scanning electron microscope and it was related to the behaviour observed. Pin on plate reciprocating sliding test without lubricant was utilised in order to measure friction coefficient and specific wear rate in the pins. Effects of alloying elements were also examined.It was found that austempering decreased impact resistance, but enhanced hardness in Distaloy DC. In contrast, the other two materials presented the opposite behaviour. However, the presence of additional alloying elements in the initial composition fulfilled to increase wear resistance, compared to the reference material. A possible interaction between pores and oxides that may influence wear behaviour was observed. Si allowed carbide free bainitic microstructure to form but heterogeneity could not be prevented. Therefore, the advantage of this microstructure could not be fully used. Results obtained in the present work can lead to new wear applications for PM products, containing bainitic microstructures.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
CARBIDE FREE BAINITE
dc.subject
POWDER METALLURGY
dc.subject
RECIPROCATING SLIDING TEST
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Wear analysis of PM compacts with bainitic microstructures, under unlubricated sliding conditions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-10-07T20:16:51Z
dc.journal.volume
9
dc.journal.pagination
578-589
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Steimbreger, Ceferino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Lulea University Of Technology; Suecia
dc.description.fil
Fil: Vuorinen, Esa. Lulea University Of Technology; Suecia
dc.description.fil
Fil: Johansson, Pernilla. Höganäs AB; Suecia
dc.journal.title
Procedia Materials Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2211812815002175
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.mspro.2015.05.033
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