Please use this identifier to cite or link to this item:
Title: Phase-oriented surface segregation in an aluminium casting alloy.
Authors: Nguyen, CL
Atanacio, AJ
Zhang, W
Prince, KE
Hyland, MM
Metson, JB
Keywords: Aluminium alloys
X-ray photoelectron spectroscopy
Mass spectroscopy
Issue Date: 15-Feb-2009
Publisher: Elsevier
Citation: Nguyen, C. L., Atanacio, A., Zhang, W., Prince, K. E., Hyland, M. M., & Metson, J. B. (2009). Phase-oriented surface segregation in an aluminium casting alloy. Applied Surface Science, 255(9), 4880-4885. doi:10.1016/j.apsusc.2008.12.025
Abstract: There have been many reports of the surface segregation of minor elements, especially Mg, into surface layers and oxide films on the surface of Al alloys. LM6 casting alloy (Al–12%Si) represents a challenging system to examine such segregation as the alloy features a particularly inhomogeneous phase structure. The very low but mobile Mg content (approximately 0.001 wt.%), and the surface segregation of modifiers such as Na, mean the surface composition responds in a complex manner to thermal treatment conditions. X-ray photoelectron spectroscopy (XPS) has been used to determine the distribution of these elements within the oxide film. Further investigation by dynamic secondary ion mass spectrometry (DSIMS) confirmed a strong alignment of segregated Na and Mg into distinct phases of the structure. © 2009, Elsevier Ltd.
Gov't Doc #: 1298
ISSN: 0169-4332
Appears in Collections:Journal Articles

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.