id:"swepub:oai:DiVA.org:kth-194623"
Search: id:"swepub:oai:DiVA.org:kth-194623" > In situ and operand...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Zhang, FanKTH,Yt- och korrosionsvetenskap (author)
In situ and operando AFM and EIS studies of anodization of Al 6060 : Influence of intermetallic particles
- Article/chapterEnglish2016
Publisher, publication year, extent ...
- 2016-07-30
- Electrochemical Society,2016
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-194623
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194623URI
- https://doi.org/10.1149/2.0061610jesDOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20170102
- In this study, anodization of an Al 6060 alloy has been investigated by in-situ electrochemical atomic force microscopy (EC-AFM) and electrochemical impedance spectroscopy (EIS) under operando conditions, to elucidate the role of intermetallic particles (IMPs) in the alloy. The Volta potential maps measured by scanning Kelvin probe force microscopy (SKPFM) reveal that the relative nobility is higher for AlFeSi type and lower for Mg2 Si type of particles as compared with the alloy matrix. The EIS results obtained at anodizing potentials show that the thickness of the barrier oxide layer increases linearly with the applied potential, but the oxide growth rate is lower than that of single crystal samples reported previously. Moreover, the EIS spectra show an inductive loop at low frequencies indicating an anodic dissolution process. The EC-AFM images display detailed morphological changes related to the IMPs during the anodization, which reveal certain localized dissolution in parallel to anodic Al oxide (AAO) formation on the alloy. The combined AFM and EIS measurements demonstrate that the IMPs in the alloy cause localized dissolution during anodization, resulting in a reduced AAO growth rate. The corrosion resistance of as-produced AAO film is low unless anodized at sufficiently high potential.
Subject headings and genre
- NATURVETENSKAP Kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences hsv//eng
- Aluminum
- Atomic force microscopy
- Corrosion resistance
- Dissolution
- Electrochemical impedance spectroscopy
- Metallic matrix composites
- Single crystals
- Anodic dissolution process
- Anodizing potential
- Barrier oxide layer
- Electrochemical atomic force microscopy
- Inter-metallic particle
- Morphological changes
- Scanning Kelvin probe force microscopy
- Single crystal samples
- Anodic oxidation
Added entries (persons, corporate bodies, meetings, titles ...)
- Nilsson, J. -O (author)
- Pan, JinshanKTH,Yt- och korrosionsvetenskap(Swepub:kth)u17ks6cf (author)
- KTHYt- och korrosionsvetenskap (creator_code:org_t)
Related titles
- In:Journal of the Electrochemical Society: Electrochemical Society163:9, s. C609-C6180013-46511945-7111
Internet link
Find in a library
- Journal of the Electrochemical Society (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Zhang, Fan
- Nilsson, J. -O
- Pan, Jinshan
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Chemical Science ...
- Articles in the publication
- Journal of the E ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
