Localization of Stresses in Polycrystalline Grains Measured by Neutron Diffraction and Predicted by Self-Consistent Model

Anita Gaj; Lea le Joncour; Andrzej Baczmanski; Sebastian Wroński; Benoit Panicaud; Manuel François; Chedly Braham; Anna Maria Paradowska

doi:10.4028/www.scientific.net/MSF.681.103

Paper Titles

Numerical Investigation of the Influence of Microstructure on the Residual Stress Distribution and Distortion in DP600 Welds
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Analysis of Ductile Damage – Comparison between Micromechanical Models and Neutron Diffraction Experiments
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Determining Ti-17 β-Phase Single-Crystal Elasticity Constants through X-Ray Diffraction and Inverse Scale Transition Model
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Localization of Stresses in Polycrystalline Grains Measured by Neutron Diffraction and Predicted by Self-Consistent Model
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Neutron Stress Measurement of Coarse Crystal Grain in Aluminium Casting Alloy
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Thin Film Stress and Texture Analysis at the MCX Synchrotron Radiation Beamline at ELETTRA
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Influence of Surface Roughness on Evaluation of Stress Gradients in Coatings
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Thermal Residual Stress Relaxation in Sputtered ZnO Film on (100) Si Substrate Studied In Situ by Synchrotron X-Ray Diffraction
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HomeMaterials Science ForumMaterials Science Forum Vol. 681Localization of Stresses in Polycrystalline Grains...

Localization of Stresses in Polycrystalline Grains Measured by Neutron Diffraction and Predicted by Self-Consistent Model

Abstract:

Time of flight neutron diffraction method was applied to measure elastic lattice strains in austenitic steel during "in situ" tensile test. Comparing experimental data with self-consistent model, the critical resolved shear stress and hardening parameters were determined for polycrystalline grains. The result allowed us to determine the main component of the stress localization tensor, relating the rate of grain stress with the applied macrostress rate. The evolution of concentration tensor in function of the applied macrostress was analyzed. Finally, the load transfer between grains during yielding of the sample was studied.

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Periodical:

Materials Science Forum (Volume 681)

Pages:

103-108

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.681.103

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Online since:

March 2011

Authors:

Anita Gaj, Lea le Joncour, Andrzej Baczmanski, Sebastian Wroński, Benoit Panicaud, Manuel François, Chedly Braham, Anna Maria Paradowska

Keywords:

Neutron Diffraction, Plastic Deformation, Self-Consistent Model, Stainless Steel (SS), Stress Localization

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