Authors
Anita Gaj, Léa Le Joncour, Andrzej Baczmanski, Sebastian Wronski, Benoît Panicaud, Manuel François, Chedly Braham, Anna Paradowska,
Title
Localization of stresses in polycrystalline grains measured by neutron diffraction and predicted by selfconsistent model
In
Materials Science Forum
Volume
681
Pages
103–108
Publisher
Trans Tech Publications
Year
2011
Indexed by
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.
Affiliations
Offprint