Dealloying of Cu-Mg-Ca alloys
Cita com:
hdl:2117/127473
Document typeArticle
Defense date2018-11-08
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
Rights accessOpen Access
Except where otherwise noted, content on this work
is licensed under a Creative Commons license
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Attribution-NonCommercial-NoDerivs 3.0 Spain
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.
ISSN2075-4701
Publisher versionhttps://www.mdpi.com/2075-4701/8/11/919
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