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Nickel fluoride as a surface activation agent for electroless nickel coating of anodized AA1050 aluminum alloy
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0002-3029-6493
2019 (English)In: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 364, p. 231-238Article in journal (Refereed) Published
Abstract [en]

In this study, the use of nickel fluoride tetrahydrate (NiF 2 ·4H 2 O) as a surface activator and sealant at the same time for the coating of electroless nickel-phosphorus (Ni-P) on anodized aluminum alloy AA1050 is proposed. The usage of the activator resulted in more efficient deposition of Ni-P, improved adhesion properties, and increased wear and friction behavior as opposed to non-activated conditions. Scanning electron microscopy (SEM) and confocal laser microscopy (CLM) analyses of ultramicrotome-cut cross sections of Ni-P coated specimens, surface-activated by NiF 2 ·4H 2 O, revealed a more well-structured metal-coating interface as opposed to non-activated conditions.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 364, p. 231-238
Keywords [en]
Aluminum alloy, Anodizing, Electroless nickel-phosphorus coating (Ni-P), Nickel fluoride tetrahydrate (NiF 2 ·4H 2 O), Scratch test, Surface activation
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-246446DOI: 10.1016/j.surfcoat.2019.03.003ISI: 000463302800026Scopus ID: 2-s2.0-85062473279OAI: oai:DiVA.org:kth-246446DiVA, id: diva2:1297200
Note

QC 20190319

Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2019-04-29Bibliographically approved

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