Residual Stress Determination of Ductile Cast Iron by means of Neutron Diffraction
F. Smith, J. Markgraaff, D.Marais, A.M. Venterdownload PDF
A study was undertaken to simulate the casting process, using simulation software, of a ductile iron casting (for use as a valve body) and in doing so to determine the order of residual stress and experimentally verify the simulation results. The simulation was carried out using MAGMASOFT® and the residual stress results verified using neutron diffraction. The measured residual stress results were found to compare favourably with the simulation predictions.
Valves, Ductile Cast Iron, Residual Stress, Neutron Diffraction, MAGMASOFT®
Published online 4/20/2018, 6 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: F. Smith, J. Markgraaff, D.Marais, A.M. Venter, ‘Residual Stress Determination of Ductile Cast Iron by means of Neutron Diffraction’, Materials Research Proceedings, Vol. 4, pp 79-84, 2018
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.
 Information on http://www.magmasoft.com/en/solutions/MAGMA_5.htm
 J.W. Hoffman, F.C. de Beer, Characteristics of the Micro-Focus X-ray Tomography Facility (MIXRAD) at Necsa in South Africa, 18th World Conference on Non-destructive Testing. (2001).
 A.M. Venter, P.R. van Heerden, D. Marais and J.C. Raaths, MPISI: The neutron strain scanner Materials Probe for Internal Strain Investigations at the SAFARI-1 research reactor, Physica B, In press. https://doi.org/10.1016/j.physb.2017.12.011
 G.A. Webster, R.C. Wimpory, Non-destructive measurement of residual stress by neutron diffraction, Journal of Materials Processing Technology. 117 (2001) 395-399. https://doi.org/10.1016/S0924-0136(01)00802-0