OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Application of Kelvin force microscopy measurements and secondary ion mass spectroscopy to evidence hydrogen embrittlement for the 2024 aluminum alloy

Larignon, Céline and Andrieu, Eric and Alexis, Joël and Lacroix, Loïc and Odemer, Grégory and Blanc, Christine Application of Kelvin force microscopy measurements and secondary ion mass spectroscopy to evidence hydrogen embrittlement for the 2024 aluminum alloy. (2014) In: International Hydrogen Conference (IHC 2012). ASME Press.

[img] (Document in English)

PDF (Author's version) - Depositor and staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
551kB

Official URL: http://ebooks.asmedigitalcollection.asme.org/book.aspx?bookid=860

Abstract

The present study focuses on the application of Kelvin Force Microscopy (KFM) measurements combined to Secondary Ion Mass Spectroscopy (SIMS) to the detection and localization of hydrogen in a pre-corroded 2024-T351 aluminum alloy. To demonstrate the role of hydrogen on cyclic corrosion damage (cold cycling corrosion test, CC test, corresponding to 3 cycles constituted of a 8 h immersion in 1M NaCl followed by a 16 h air exposure period at -20°C), KFM measurements were performed; the results obtained on CC samples were compared to those obtained on a cathodically hydrogen charged sample. Results showed the hydrogen penetration along the grain boundaries and the subgrain boundaries of the pre-corroded CC samples. SIMS analyses corroborated the results so that the combination of KFM measurements and SIMS analyses was helpful in showing the contribution of hydrogen to the 2024 alloy damage following exposure to a corrosive medium.

Item Type:Book Section
Additional Information:ASME does not allow open archive publishing. The definitive version is available at : http://ebooks.asmedigitalcollection.asme.org/book.aspx?bookid=860
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
Statistics:download
Deposited By: Joël ALEXIS
Deposited On:17 Nov 2017 13:35

Repository Staff Only: item control page