Levine, L.
, Thomson, R.
, Long, G.
and Black, D.
(2017),
New Synchrotron X-Ray Techniques for In-Situ Deformation Studies, International Conference on Composites Engineering, Undefined
(Accessed April 25, 2024)
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New Synchrotron X-Ray Techniques for In-Situ Deformation Studies
Published
Author(s)
, R Thomson, ,
Abstract
Many types of defects contribute to local and long-range stresses and strains in materials. These include vacancies, voids, prismatic loops, interstitials, inclusions, and dislocations. In most cases, dislocations play the dominant role in minimizing long-range stresses in a material by concentrating large amounts of strain within the dislocation core. This cancellation of long-range stresses results in a large decrease in the energy of the system, and thus is a strong driving force for dislocation motion. The degree to which dislocations can cancel out stresses thus depends upon their mobility, and the process of stress cancellation can be considered as a competition between energetics and kinetics. Nowhere is this competition more evident than during the plastic deformation of metals.Conference Dates
July 5-11, 1998
Conference Location
Undefined
Conference Title
International Conference on Composites Engineering
Pub Type
Conferences
Keywords
deformation, diffraction imaging, dislocations, line profiles, small-angle scattering
Citation
Created February 19, 2017