Validation of XRD Stress Analyses Combining in-situ Tests and Integrated Peak Processing

Validation of XRD Stress Analyses Combining in-situ Tests and Integrated Peak Processing

B. Voillot, R. Billardon, J.L. Lebrun, F. Hild

Abstract. The surface integrity has a significant effect on the fatigue life of structural components (e.g., landing gears). To estimate sub-surface residual stresses, X-ray diffraction (XRD) is applied to a Ti5553 alloy sample in an in-situ tensile test. This material is challenging since it is made of α and β phases of different proportions, shapes and scales ranging from submicrometre to millimetre sizes. Therefore stress variations occur between grains. For millimetric probed volumes, the studied microstructure leads to shallow and noisy diffraction signals. It is shown that combing a new integrated method of diffraction peak registration and in-situ XRD measurements in tensile tests allows qualitative and quantitative results of residual stress analyses to be obtained for Ti5553 alloy samples.

Keywords
X-ray Diffraction, Ti5553 Alloy, in-situ Tensile Test, Peak Correlation, Integrated Methods

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: B. Voillot, R. Billardon, J.L. Lebrun, F. Hild, ‘Validation of XRD Stress Analyses Combining in-situ Tests and Integrated Peak Processing’, Materials Research Proceedings, Vol. 2, pp 91-96, 2017

DOI: https://dx.doi.org/10.21741/9781945291173-16

The article was published as article 16 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.

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