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Linking Surface Precipitation in Fe-Au Alloys to Its Self-healing Potential During Creep Loading

Journal Article (2017)
Authors

W. W. Sun (Monash University)

H. Fang (Novel Aerospace Materials)

N.H. Dijk (TU Delft - RST/Fundamental Aspects of Materials and Energy)

Sybrand van der Zwaag (Novel Aerospace Materials)

C. R. Hutchinson (Monash University)

Research Group
Novel Aerospace Materials
Copyright
© 2017 W. W. Sun, H. Fang, N.H. van Dijk, S. van der Zwaag, C. R. Hutchinson
To reference this document use:
https://doi.org/10.1007/s11661-017-4025-x
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Publication Year
2017
Language
English
Copyright
© 2017 W. W. Sun, H. Fang, N.H. van Dijk, S. van der Zwaag, C. R. Hutchinson
Research Group
Novel Aerospace Materials
Issue number
5
Volume number
48
Pages (from-to)
2109–2114
DOI:
https://doi.org/10.1007/s11661-017-4025-x
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Abstract

The precipitation of Au-rich precipitates on the external surfaces of Fe-Au alloys has been studied by scanning and transmission electron microscopy. The surface precipitates formed at elevated temperatures are found to self-organize in regular patterns and their growth rate is determined quantitatively. The observed surface precipitation at a free surface is compared to the precipitation at the internal surface of grain boundary cavities induced by creep loading. A close agreement between both processes is observed.