Study of stress localisation in polycrystalline grains using self-consistent modelling and neutron diffraction
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Date
2012-05-14
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis Ltd
Abstract
The time-of-flight neutron diffraction technique and the elastoplastic self-consistent model were used to study the behaviour of single and multi-phase materials. Critical resolved shear stresses and hardening parameters in austenitic and austenitic?ferritic steels were found by analysing the evolution of the lattice strains measured during tensile tests. Special attention was paid to the changes of the grain stresses occurring due to transition from elastic to plastic deformation. Using a new method of data analysis, the variation of the stress localisation tensor as a function of macrostress was measured. The experimental results were successfully compared with model predictions for both phases of the duplex steel and also for the austenitic sample. © 2012, Taylor & Francis Group, an Informa Business.
Description
Keywords
Neutron diffraction, Temperature range 0065-0273 K, X-ray diffraction, Polycrystals, Residual stresses, Mechanical properties
Citation
Baczmański, A., Gaj, A., Le Joncour, L., Wroński, S., François, M., Panicaud, B., Braham, C., & Paradowska, A. M. (2012). Study of stress localisation in polycrystalline grains using self-consistent modelling and neutron diffraction. Philosophical Magazine, 92(24), 3015-3035. doi.10.1080/14786435.2012.683542