Angus J. Wilkinson is a professor of materials science based at the Department of Materials, University of Oxford. He is a specialist in micromechanics, electron microscopy and crystal plasticity.[1][2] He assists in overseeing the MicroMechanics group while focusing on the fundamentals of material deformation. Wilkinson developed the HR-EBSD[3][4] method for mapping stress and dislocation density[5] at high spatial resolution used at the micron scale in mechanical testing [6][7] and micro-cantilevers.[8]
Throughout his career, Wilkinson has held various leadership roles within the Department of Materials at Oxford. He served as deputy head of the department from 2018 to 2019 and co-headed the department with Peter Nellist from 2020 to 2021,[9] and with Hazel E. Assender from 2021 to 2022.
Wilkinson actively comments on PubPeer to highlight research integrity issues, such as image manipulation and data inconsistencies, aiming to improve scientific rigor.[10] Wilkinson flagged concerns about manipulated images and data irregularities in Filippo Berto's publications, which led to numerous retractions and helped prompt the Norwegian University of Science and Technology committee to open an investigation into Berto's work.[11][12]
Selected publications
- Wilkinson AJ, Meaden G, Dingley DJ. High-resolution elastic strain measurement from electron backscatter diffraction patterns: New levels of sensitivity. Ultramicroscopy 2006;106:307–13. https://doi.org/10.1016/j.ultramic.2005.10.001.
- Wilkinson AJ, Hirsch PB. Electron diffraction based techniques in scanning electron microscopy of bulk materials. Micron 1997;28:279–308. https://doi.org/10.1016/S0968-4328(97)00032-2.
- Wilkinson AJ, Britton T. Strains, planes, and EBSD in materials science. Materials Today 2012;15:366–76. https://doi.org/10.1016/S1369-7021(12)70163-3.
- Wilkinson AJ, Randman D. Determination of elastic strain fields and geometrically necessary dislocation distributions near nanoindents using electron back scatter diffraction. Philosophical Magazine 2010;90:1159–77. https://doi.org/10.1080/14786430903304145.
- Guo Y, Britton TB, Wilkinson AJ. Slip band–grain boundary interactions in commercial-purity titanium. Acta Mater 2014;76:1–12. https://doi.org/10.1016/J.ACTAMAT.2014.05.015.
- Britton TB, Wilkinson AJ. High resolution electron backscatter diffraction measurements of elastic strain variations in the presence of larger lattice rotations. Ultramicroscopy 2012;114:82–95. https://doi.org/10.1016/J.ULTRAMIC.2012.01.004.
- Zhai T, Wilkinson AJ, Martin JW. A crystallographic mechanism for fatigue crack propagation through grain boundaries. Acta Mater 2000;48:4917–27. https://doi.org/10.1016/S1359-6454(00)00214-7.
See also
References
- ^ "Prof Angus J Wilkinson". omg.web.ox.ac.uk. Retrieved 2022-10-13.
- ^ "Angus J Wilkinson". www.materials.ox.ac.uk. Retrieved 2022-10-13.
- ^ Wilkinson, Angus J.; Meaden, Graham; Dingley, David J. (2006-03-01). "High-resolution elastic strain measurement from electron backscatter diffraction patterns: New levels of sensitivity". Ultramicroscopy. 106 (4): 307–313. doi:10.1016/j.ultramic.2005.10.001. ISSN 0304-3991. PMID 16324788.
- ^ Britton, T. B.; Wilkinson, A. J. (2012-03-01). "High resolution electron backscatter diffraction measurements of elastic strain variations in the presence of larger lattice rotations". Ultramicroscopy. 114: 82–95. doi:10.1016/j.ultramic.2012.01.004. ISSN 0304-3991. PMID 22366635.
- ^ Wilkinson, Angus J.; Randman, David (2010-03-21). "Determination of elastic strain fields and geometrically necessary dislocation distributions near nanoindents using electron back scatter diffraction". Philosophical Magazine. 90 (9): 1159–1177. Bibcode:2010PMag...90.1159W. doi:10.1080/14786430903304145. ISSN 1478-6435. S2CID 121903030.
- ^ Jiang, J.; Britton, T. B.; Wilkinson, A. J. (2013-02-01). "Measurement of geometrically necessary dislocation density with high resolution electron backscatter diffraction: Effects of detector binning and step size". Ultramicroscopy. 125: 1–9. doi:10.1016/j.ultramic.2012.11.003. ISSN 0304-3991. PMID 23262146.
- ^ Dunne, F. P. E.; Wilkinson, A. J.; Allen, R. (2007-02-01). "Experimental and computational studies of low cycle fatigue crack nucleation in a polycrystal". International Journal of Plasticity. 23 (2): 273–295. doi:10.1016/j.ijplas.2006.07.001. ISSN 0749-6419.
- ^ Gong, Jicheng; Wilkinson, Angus J. (2009-11-01). "Anisotropy in the plastic flow properties of single-crystal α titanium determined from micro-cantilever beams". Acta Materialia. 57 (19): 5693–5705. Bibcode:2009AcMat..57.5693G. doi:10.1016/j.actamat.2009.07.064. ISSN 1359-6454.
- ^ "Peter Nellist". www-stemgroup.materials.ox.ac.uk. Retrieved 2025-02-10.
- ^ "Materials scientist explains why he started commenting on PubPeer". Chemical & Engineering News. Retrieved 2025-02-10.
- ^ Hanger, Mari Rian (2024-05-14). "Anbefaler uavhengig granskning av varsler mot Filippo Berto". www.universitetsavisa.no (in Norwegian Bokmål). Retrieved 2025-02-10.
- ^ Chawla, Dalmeet Singh (2024-05-15). "Norway university committee recommends probe into the country's most productive researcher". Retraction Watch. Retrieved 2025-02-10.
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