Benchmarking studies of the MPISI Material Science Diffractometer at SAFARI-1

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Benchmarking studies of the MPISI Material Science Diffractometer at SAFARI-1

A.M. Venter, D. Marais, V. Luzin

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Abstract. The measurement performance of the new material science instrument MPISI at the SAFARI-1 research reactor in South Africa has been comprehensively benchmarked for strain scanning applications. In addition to the traditional VAMAS Ring and Plug specimen, the benchmarking was extended to a project that required sub-millimeter spatial resolution. For the latter the MPISI performance has been compared with experimental investigations on the same sample set at the KOWARI instrument at ANSTO. Overall, good data quality and agreement have been observed between the two instruments.

Keywords
Neutron Strain Scanner, Benchmark, Laser Shock Peening

Published online 12/22/2016, 6 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: A.M. Venter, D. Marais, V. Luzin, ‘Benchmarking studies of the MPISI Material Science Diffractometer at SAFARI-1’, Materials Research Proceedings, Vol. 2, pp 413-418, 2017

DOI: http://dx.doi.org/10.21741/9781945291173-70

The article was published as article 70 of the book Residual Stresses 2016

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
[1] VAMAS report No 38 ‘Neutron diffraction measurements of residual stress in a shrink-fit ring and plug’, G.A. Webster (Ed.), NPL, Teddington, UK, Jan 2000.
[2] K. Ding and Y Lin, Laser shock peening: Performance and process simulation, Woodhead Publishing, 2006.
[4] Y. Sano et al., Improvement in fatigue performance of friction stir welded A6061-T6 aluminium alloy by laser peening without coating, Materials & Design 36 (2012) 809-814.
[3] Kirstein, O., Luzin, V., and Garbe, U., 2009, The Strain-Scanning Diffractometer Kowari: Neutron News, v. 20, no. 4, p. 34-36.
[5] P.C. Brand, H.J. Prask, New methods for the alignment of instrumentation for residual-stress measurements by means of neutron diffraction, J. Appl. Cryst. 27 (1994) 164-176.
[6] M.T. Hutchings, P.J. Withers, T.M. Holden, T. Lorentzen, Introduction to the Characterization of Residual Stress by Neutron Diffraction, Taylor and Francis, London, 2005.
[7] A. M. Korsunsky, 2005, On the modelling of residual stresses due to surface peening using eigenstrain distributions: Journal of Strain Analysis for Engineering Design, v. 40, no. 8 (2005) p. 817-824.