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Abstract
Several analytical techniques that are currently available can be used to determine the spatial distribution and amount of austenite, ferrite and precipitate phases in steels. The application of magnetic force microscopy, in particular, to study the local microstructure of stainless steels is beneficial due to the selectivity of this technique for detection of ferromagnetic phases. In the comparison of Magnetic Force Microscopy and Electron Back-Scatter Diffraction for the morphological mapping and quantification of ferrite, the degree of sub-surface measurement has been found to be critical. Through the use of surface shielding, it has been possible to show that Magnetic Force Microscopy has a measurement depth of 105–140 nm. A comparison of the two techniques together with the depth of measurement capabilities are discussed.
Original language | English |
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Pages (from-to) | 1-9 |
Number of pages | 9 |
Journal | Ultramicroscopy |
Volume | 148 |
Issue number | 0 |
Early online date | 23 Aug 2014 |
DOIs | |
Publication status | Published - Jan 2015 |
Keywords
- Ferrite
- Austenite
- Electron backscatter diffraction
- Magnetic force microscopy
- Type 321 stainless steel
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Composites Innovation from Atoms to Applications EP/K035746/1
Wisnom, M. R., Potter, K. D., Hallett, S. R., Kuball, M. H. H., Etches, J. A. & Davis, S. A.
1/03/14 → …
Project: Research
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