An investigation of the native oxide of aluminum alloy 7475-T7651 using XPS, AES, TEM, EELS, GDOES, RBS.

Toh, S. K., McCulloch, D. G., du Plessis, J., Paterson, P. J. K., Hughes, A. E., Jamieson, D., Rout, B., Long, J. M. and Stonham, A. 2003, An investigation of the native oxide of aluminum alloy 7475-T7651 using XPS, AES, TEM, EELS, GDOES, RBS., Surface review and letters, vol. 10, no. 2-3, pp. 365-371.

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Title An investigation of the native oxide of aluminum alloy 7475-T7651 using XPS, AES, TEM, EELS, GDOES, RBS.
Author(s) Toh, S. K.
McCulloch, D. G.
du Plessis, J.
Paterson, P. J. K.
Hughes, A. E.
Jamieson, D.
Rout, B.
Long, J. M.
Stonham, A.
Journal name Surface review and letters
Volume number 10
Issue number 2-3
Start page 365
End page 371
Publisher World Scientific Publishing Co.
Place of publication Singapore
Publication date 2003-04
ISSN 0218-625X
1793-6667
Summary The native oxide on the rolled aerospace aluminum alloy 7475-T7651 was characterized using a variety of different techniques, including X-ray Photoelectron Spectrometry (XPS), Auger Electron Spectrometry (AES), Transmission Electron Microscopy (TEM), Electron Energy Loss Spectrometry (EELS), Glow Discharge Optical Emission Spectrometry (GDOES), and Rutherford Backscattered Spectrometry (RBS). All techniques revealed that the native oxide layer is magnesium-rich and is probably a mixture of magnesium and aluminum–magnesium oxides.1 The oxide layer was found to be of nonuniform thickness due to the rolling process involved during the manufacture of this sheet alloy; this complicates analysis using techniques which have poor spatial resolution. Direct thickness measurement from cross-sectional TEM reveals an oxide thickness which varies between 125 and 500 nm. This large variation in thickness was also evident from GDOES and AES depth profiles as well asthe RBS data. Both XPS and RBS also show evidence for the presence of heavy metals in the oxide.
Notes Cover dates April/June 2003
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2003, World Scientific Publishing Company
Persistent URL http://hdl.handle.net/10536/DRO/DU:30008591

Document type: Journal Article
Collection: School of Engineering and Technology
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