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Erschienen in: Journal of Materials Science 19/2014

01.10.2014 | Ultrafinegrained Materials

Harmonic-structured copper: performance and proof of fabrication concept based on severe plastic deformation of powders

verfasst von: Choncharoen Sawangrat, Shota Kato, Dmitry Orlov, Kei Ameyama

Erschienen in: Journal of Materials Science | Ausgabe 19/2014

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Abstract

Pure copper (Cu) having bimodal ‘harmonic structure’ (HS) was fabricated by a technique based on severe plastic deformation of powders, which involved tailored mechanical milling and spark plasma sintering. The harmonic-structured Cu demonstrates a unique combination of high strength and large elongation superior to its homogeneous as well as bimodal heterogeneous counterparts. Specific features of harmonic structure, i.e. continuous network of ultra-fine grained (UFG) regions encompassing coarse-grained areas, lead to the extension of uniform elongation. The optimum combination of properties in pure Cu is found to be in the harmonic-structured material having 40 % UFG fraction.

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Metadaten
Titel
Harmonic-structured copper: performance and proof of fabrication concept based on severe plastic deformation of powders
verfasst von
Choncharoen Sawangrat
Shota Kato
Dmitry Orlov
Kei Ameyama
Publikationsdatum
01.10.2014
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 19/2014
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-014-8258-4

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