Characterisation of films grown on aluminium immersed in aerated saline solutions containing nickel
| Autor: | D. R. Arnott, I. Danilidis, P.J.K. Paterson, Andrew N. Rider, A.R. Wilson |
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| Předmět: |
Materials science
Adhesive bonding Chromate conversion coating Inorganic chemistry Oxide chemistry.chemical_element Surfaces and Interfaces General Chemistry Condensed Matter Physics Chloride Surfaces Coatings and Films Corrosion chemistry.chemical_compound Nickel chemistry Chemical engineering Aluminium Materials Chemistry Aluminium oxide medicine medicine.drug |
| Zdroj: | Scopus-Elsevier |
| Popis: | Small additions of nickel chloride to salt solution significantly reduce the corrosion of aluminium alloys. Films produced in these solutions produce a microrough topography which may be suitable for adhesive bonding. Techniques such as XPS, SEM, FTIR and SIMS were used to investigate the properties of the films. The results established that nickel is incorporated in the outer layer of a hydrated aluminium oxide film and is responsible for altering the film growth mechanism. Boeing wedge tests were conducted to assess the relative durability of bonds with adherends pretreated in the salt solutions. The durability performance of the film as a surface treatment for adhesive bonding compared favourably with the Forest Products Laboratory chromate etch. A comparison of the nickel salt treatment with a sodium chloride solution treatment indicated that durability differences were related to their respective hydrated oxide structures. |
| Databáze: | OpenAIRE |
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