Latest Papers

〈c + a〉 Dislocations in deformed Ti–6Al–4V micro-cantilevers
R Ding, J Gong, AJ Wilkinson, IP Jones
Acta Materialia (2014) vol. 76 127-134
doi:10.1016/j.actamat.2014.05.010


Slip band–grain boundary interactions in commercial-purity titanium
Y Guo, TB Britton and AJ Wilkinson
Acta Materialia (2014) vol. 76 1-12
doi:10.1016/j.actamat.2014.05.015


Simulation of deformation twins and their interactions with cracks
A Stoll and AJ Wilkinson
Computational Materials Science (2014) vol. 89 224-232
doi:10.1016/j.commatsci.2014.03.041


A review of advances and challenges in EBSD strain mapping
AJ Wilkinson, TB Britton, J Jiang and PS Karamched
IOP Conf. Ser.: Mater. Sci. Eng. (2014) vol. 55 012020
doi:10.1088/1757-899X/55/1/012020


In-service materials support for safety critical applications – a case study of a high strength Ti-alloy using advanced experimental and modelling techniques
D Rugg, TB Britton, J Gong, AJ Wilkinson, PAJ Bagot
Materials Science and Engineering A (2014), vol. 599 166-173
doi:10.1016/j.msea.2014.01.031


News

Dave Collins at Diamond

InsideDiamond Article
Earlier in the year Dave Collins and his team (Hamid Abdolvand, Mahmoud Mostafavi (Sheffield), Richard Todd and Angus Wilkinson) had beam time at the Diamond Light Source - I12 where they were extremely well supported by Thomas Connolley. The in situ deformation experiment on non-proportional biaxial deformation broke new ground and was very successful. The work caught the attention of a journalist from 'InsideDiamond' who interviewed David during the experiment- their article is on page 15.

New SEM and EBSD system
Our new Zeiss Merlin FEG-SEM and High Resolution Bruker EBSD system have been installed. Arantxa and Hamid are getting to grips with the new instrument with help from Gabriella Chapman and Gareth Hughes in the EM research Support Group. A couple of days in and Arantxa already has some initial images of atomic terraces on GaN surfaces and threading dislocations making up mosiac cells in a thin InAlN film.

atomic steps on GaN
mosiac cells in InAlN

New post-doc joins group
Hamidreza Abdolvand has joined the group. He will be working on Hi-Res EBSD within the 'HexMat' programme grant - Heterogeneous mechanics in hexagonal alloys across length and time scales. He has previously worked at Manchester with Phil Withers and was a student at Queens Univesity with Mark Daymond and has experience of crystal plasticity FEA and synchrotron based diffraction methods.

Dave Collins at APS

Successful Experiment at APS
Dave Collins, Ed Tarleton and Ben Britton (Imperial College) had a busy time in Chicago at the Advanced Photon Source (34-ID-E) in November. They returned to the UK with ~6TB of data that they and Yi Guo have now set about analysiing.



Jun Jiang Thesis Submission
Congratulations to Jun Jiang on submitting his DPhil thesis on 'A High Resolution Electron Backscatter Diffraction Study of Heterogeneous Deformation in Polycrystal Copper'. Both data collection and analysis for Hi-Res-EBSD have moved forward enormously through Jun's efforts.

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Meet us at

UK Nitride Consortium - Winter Conference 2014
Bristol, UK, 7-8 January 2014
- Arantxa V-C on 'Mapping of the strain and distribution of dislocations in InAlN based HEMTs using electron backscatter diffraction'


TMS 2014
San Diego, CA 16-20 February 2014
- group presentations on hi-res EBSD, fatigue, and micro-mechanical testing


EBSD 2014 - Annual RMS meeting
London, UK, 31 March - 1 April 2014
- several members of the group will attend and give presentations


Japan Microscopy Society Annual Meeting 2014
Tokyo, Japan, 11-13 May 2014
- presentations by Angus W on 'progress with EBSD strain mapping'