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Dealloying of Cu-Mg-Ca alloys

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Mbarek Wael, Ben
Pineda Soler, EloiMés informacióMés informacióMés informació
Escoda, Lluïsa
Suñol Martinez, Juan Jose
Khitouni, Mohamed
Document typeArticle
Defense date2018-11-08
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
ProjectVIDRIOS ORGANICOS Y METALICOS: DINAMICA, RECRISTALIZACION Y PROPIEDADES VIBRACIONALES (AEI-FIS2017-82625-P)
Abstract
The chemical dealloying of Cu-Mg-Ca alloys in free corrosion conditions was investigated for different alloy compositions and different leaching solutions. For some of the precursor alloys, a continuous, pure fcc copper with nanoporous structure can be obtained by dealloying in 0.04 M H2SO4 solution. Superficial nanoporous copper structures with extremely fine porous size were also obtained by dealloying in pure water and 0.1 M NaOH solutions. The dealloying of both amorphous and partially crystalline alloys was investigated obtaining bi-phase nanoporous/crystal composites with microstructures depending on the precursor alloy state. The fast dissolution of Mg and Ca makes the Cu-Mg-Ca system an ideal candidate for obtaining nanoporous copper structures with different properties as a function of different factors such as the alloy composition, the quenching process, and leaching conditions.
CitationMbarek Wael, B., Pineda, E., Escoda, L., Suñol, J.J., Khitouni, M. Dealloying of Cu-Mg-Ca alloys. "Metals", 8 Novembre 2018, vol. 8, núm. 11, p. 919-932. 
URIhttp://hdl.handle.net/2117/127473
DOI10.3390/met8110919
ISSN2075-4701
Publisher versionhttps://www.mdpi.com/2075-4701/8/11/919
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  • Departament de Física - Articles de revista [1.867]
  • GCM - Grup de Caracterització de Materials - Articles de revista [332]
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