Determination of Stress Gradients by X-ray Diffraction: Comparison of Different Methods and Applications
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Stéphanie Bein
Abstract
The paper presents a review of the main theoretical formulations of the analysis of steep stress gradients by X-ray diffraction and a comparison of calculations with experimentally applied stresses in a four-point bending test on a beryllium specimen. The comparison between theoretical approaches and experiments is therefore limited to uniaxial linear stress gradients. It shows that, in this case, only an evaluation of stress gradient can be obtained from the analysis of X-ray diffraction measurements even when experiments are performed very carefully. In this direction, very complex formulations could often not be necessary. Then, a summary of advantages and drawbacks of each theoretical approach is presented. Finally, for different forms of stress gradients, the paper proposes the most convenient formalism and experimental technique to be used.
The authors gratefully acknowledge the team of LURE laboratory (Orsay) for allowing the use of synchrotron radiation and for valuable help in performing the experiments. The authors also acknowledge P. Gergaud for stimulating discussions and developments about GIXD formulae and C. Saifoudine for participating in the experimentations.
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© 1998 Carl Hanser Verlag, München
Artikel in diesem Heft
- Frontmatter
- Aufsätze
- Kinetics of Phase Separation in a Hypermonotectic Al–Pb Alloy
- Liquid–Liquid Interfacial Tension in the Demixing Metal Systems Ga–Hg and Ga–Pb
- Preparation, Structure and Physical Properties of Fe-, Co- and Ni-rich Melt-quenched Ribbons Containing Zr or Hf – Part IV: Thermal Stability; DSC, TEM and Thermomagnetic Studies
- Fractal Aggregation in MgO-B2O3-SiO2 Slag
- Phase Equilibria of the Decagonal AlCoNi Phase
- Free Energy of Mixing and Vapour Pressure of Liquid Ga-As, In-As, Ga-P and In-P Alloys
- Phase Equilibria in the Dy–Fe–Nd System at 500 °C
- Determination of Stress Gradients by X-ray Diffraction: Comparison of Different Methods and Applications
- Non-Linear Denoising with Wavelet Transformation
- Effect of Cold Working and Annealing on Grain Size and Hardness of a Zr-2.5Nb Alloy
- Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
- Personen
- Buchbesprechungen
- Terminkalender
Artikel in diesem Heft
- Frontmatter
- Aufsätze
- Kinetics of Phase Separation in a Hypermonotectic Al–Pb Alloy
- Liquid–Liquid Interfacial Tension in the Demixing Metal Systems Ga–Hg and Ga–Pb
- Preparation, Structure and Physical Properties of Fe-, Co- and Ni-rich Melt-quenched Ribbons Containing Zr or Hf – Part IV: Thermal Stability; DSC, TEM and Thermomagnetic Studies
- Fractal Aggregation in MgO-B2O3-SiO2 Slag
- Phase Equilibria of the Decagonal AlCoNi Phase
- Free Energy of Mixing and Vapour Pressure of Liquid Ga-As, In-As, Ga-P and In-P Alloys
- Phase Equilibria in the Dy–Fe–Nd System at 500 °C
- Determination of Stress Gradients by X-ray Diffraction: Comparison of Different Methods and Applications
- Non-Linear Denoising with Wavelet Transformation
- Effect of Cold Working and Annealing on Grain Size and Hardness of a Zr-2.5Nb Alloy
- Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
- Personen
- Buchbesprechungen
- Terminkalender
