Cold spray deposition of mechanically alloyed Cu–Ni–Fe material for application as inert anodes for aluminum production

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DOIResolve DOI: http://doi.org/10.1002/9781118663189.ch216
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TypeArticle
Proceedings titleLight Metals 2013
Series titleTMS Light Metals
Conference2013 TMS Annual Meeting and Exhibition, 3-7 March 2013, San Antonio, TX, USA
ISSN0147-0809
ISBN9781118605721
Pages12831287; # of pages: 5
Subjectaluminum electrolysis; inert anode; Cu-Ni-Fe alloys; cold spray deposition; low-temperature electrolyte
AbstractCold spray deposition was evaluated for the production of inert anodes for Al electrolysis from mechanically alloyed Cu−Ni−Fe powders. Cu<SUB>65</SUB>Ni<SUB>20</SUB>Fe<SUB>15</SUB> (in wt. %) alloy was first prepared from elemental Cu, Ni, Fe powders using an attritor. After 40 h of milling, a nanocrystalline and monophasic Cu(Ni,Fe) solid solution was formed. It was shown that the particle size of the milled powder can be controlled with the addition of stearic acid to the initial powder mixture. In a second step, the cold spray parameters (pressure and temperature of the carrier N<SUB>2</SUB> gas) were optimized in order to maximize the impact velocity of the Cu<SUB>65</SUB>Ni<SUB>20</SUB>Fe<SUB>15</SUB> particles on the substrate. Then, thick (1100 μm), dense (porosity of 1− 2 %) and adherent (adhesion strength of 15 MPa) coatings of Cu<SUB>65</SUB>Ni<SUB>20</SUB>Fe<SUB>15</SUB> on C63000 substrate (copper aluminium bronze alloy) were produced. No structural change of the Cu<SUB>65</SUB>Ni<SUB>20</SUB>Fe<SUB>15</SUB> alloy was observed during cold spray processing.
Publication date
PublisherWiley
LanguageEnglish
AffiliationSurface Transportation; National Research Council Canada; Surface Transportation
Peer reviewedYes
NRC numberNRCC 141473
NPARC number21268362
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Record identifierdccb3313-a82c-4cf0-a2a5-ad7d7a1eb269
Record created2013-07-04
Record modified2017-07-27
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