Measurement of Grinding Stresses with a Combination of Neutron and X-ray Diffraction

Article type: Research Article

Authors: Bouzina, A. | Balart, M.J. | Edwards, L. | Fitzpatrick, M.E.

Affiliations: Department of Materials Engineering, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK

Note: [] Corresponding author.

Abstract: Abusive grinding conditions lead to near-surface residual stress in all work-piece materials. In this study, two techniques (X-ray and neutron diffraction) have been used to measure residual stress after grinding. Neutron diffraction has been used to validate near-surface X-ray stress measurements, using a novel surface scanning geometry to extend the neutron technique to the near-surface (< 100 µm) region. We demonstrate the potential benefit of using both techniques to measure stresses in critical aerospace and automotive components non-destructively, using X-ray diffraction for at-surface data, and neutron diffraction for the near-surface profile.

Keywords: Residual stress, Grinding, X-ray diffraction, Neutron diffraction

DOI: 10.1080/10238160108200138

Journal: Journal of Neutron Research, vol. 9, no. 2-4, pp. 167-171, 2001