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Fatigue of Aircraft Structures

The Journal of Institute of Aviation

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2300-7591
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Synchrotron Radiation Application for Lattice Strain Measurements

Elżbieta Gadalińska / Andrzej Baczmański / Kamil Sołoducha
Published Online: 2015-06-30 | DOI: https://doi.org/10.1515/fas-2014-0003

Abstract

The methods most commonly used for the determination of the elastic lattice deformation and distortion are diffraction methods, which enable to perform measurements of stresses and elastic properties of polycrystalline materials. The main advantages of diffraction methods are associated with their non-destructive character and the possibility to be used for macrostress and microstress analysis of multiphase and anisotropic materials. Diffraction methods enable taking measurements selectively only for a chosen alloy phase. This is very convenient when several phases are present in the sample since measurements of separate diffraction peaks allow the behaviour of each phase to be investigated independently.

In this work, a method for analysis of diffraction with synchrotron radiation is described. The methodology is based on the measurements of lattice strains during “in situ” tensile testing for several hkl reflections and for different orientations of the sample with respect to the scattering vector. Some initial results are presented.

Keywords: diffraction; synchrotron radiation; lattice strain; micromechanical properties of duplex steel; in situ tensile test

REFERENCES

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About the article

Published Online: 2015-06-30

Published in Print: 2014-06-01


Citation Information: Fatigue of Aircraft Structures, ISSN (Online) 2300-7591, DOI: https://doi.org/10.1515/fas-2014-0003.

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© Elżbieta Gadalińska et al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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