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Determination of the stress orientation distribution function using pulsed neutron sources
Spallation Neutron Soruces Oak Ridge National Lab, Oak Ridge.
Metal and Ceramic Div Oak Ridge National Lab, Oak Ridge.
Sapllation Neutron Source Oak Ridge National Lab, Oak Ridge.
Intense Pulsed Neutron Source Argonne National Lab, Argonne.
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2003 (English)In: Journal of applied crystallography, ISSN 0021-8898, Vol. 36, no 1, 14-22 p.Article in journal (Refereed) Published
Abstract [en]

The stress orientation distribution function (SODF) was recently introduced as a mean-field representation to describe the grain- orientation dependence of intergranular stress. Pulsed neutron sources are ideally suited for the determination of the SODF since multiple reflections can be measured simultaneously with comparable precision. A method is developed for constructing the SODF from strain pole figures measured with a pulsed neutron source and demonstrated with cold-rolled interstitial-free steel. The experimental results are compared with those measured with a reactor-based constant-wavelength diffractometer. It is shown that access to a large number of reflections on a pulsed neutron source improves the precision of the experimental SODF and facilitates in situ studies of the evolution of the intergranular stress during deformation and annealing.

Place, publisher, year, edition, pages
2003. Vol. 36, no 1, 14-22 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-30034DOI: 10.1107/S0021889802017399Local ID: 15487OAI: diva2:250854
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2011-01-13

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Peng, Ru
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The Institute of TechnologyEngineering Materials
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