Results 31 to 40 of about 16,888 (264)
Annealing of dislocation loops in dislocation dynamics simulations
IOP Conference Series: Materials Science and Engineering, 2009 We report of 3-dimensional discrete dislocation dynamics (DDD) simulations of dislocation loops coarsening by vacancy bulk difiusion. The calculation is based upon a model which couples the difiusion theory of vacancies to the DDD in order to obtain the climb rate of the dislocation segments.
Dan Mordehai +3 more
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Nano-sized prismatic vacancy dislocation loops and vacancy clusters in tungsten
Nuclear Materials and Energy, 2018 The vacancies produced in high energy collision cascades of irradiated tungsten can form vacancy clusters or prismatic vacancy dislocation loops. Moreover, vacancy loops can easily transform into planar vacancy clusters.
Jan Fikar +3 more
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Horizontal instability after acromioclavicular joint reduction using the two-hole technique is preferred over the loop technique: a single-blind randomized clinical trial [PDF]
Clinics in Shoulder and Elbow, 2022 Background Most acromioclavicular joint (ACJ) injuries are caused by direct trauma to the shoulders, and various methods and techniques are used to treat them; however, none of the options can be considered the gold standard.
Mohsen Mardani-Kivi +6 more
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"Conjugate channeling" effect in dislocation core diffusion: carbon transport in dislocated BCC iron. [PDF]
PLoS ONE, 2013 Dislocation pipe diffusion seems to be a well-established phenomenon. Here we demonstrate an unexpected effect, that the migration of interstitials such as carbon in iron may be accelerated not in the dislocation line direction ξ, but in a conjugate ...
Akio Ishii, Ju Li, Shigenobu Ogata
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Climb kinetics of dislocation loops in aluminium
Philosophical Magazine, 1968 Abstract The annealing kinetics of dislocation loops in quenched aluminium has been studied using transmission electron microscopy techniques. An influence of the vicinity of the foil surface on the rate of climb was confirmed. The apparent activation energy for climb of faulted loops was found to be 1·18 ± 0·02 ev and the pre-exponential factor, (7 ...
Tartour, Jean-Pierre, Washburn, Jack
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DISLOCATION DIPOLES AND DISLOCATION LOOPS
Le Journal de Physique Colloques, 1966 Basic theoretical ideas on the properties of two special dislocation configurations, dislocation dipoles and prismatic dislocation loops, are presented. Some of the author's recent results, based mostly on the application of the model of elastic continuum on these crystalline defects, are also given.
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Review and critical assessment of dislocation loop analyses on EUROFER 97
Nuclear Materials and Energy, 2018 The understanding of microstructural defects behavior after neutron irradiation is crucial for assessing the applicability of reduced activation ferritic/martensitic (RAFM) steel EUROFER 97 in future fusion reactors.
C. Dethloff, E. Gaganidze, J. Aktaa
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The Discrete Dislocation Dynamics of Multiple Dislocation Loops
Archive for Rational Mechanics and Analysis57 pages, 3 figures.
Patrizi, Stefania, Vaughan, Mary
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Movement of Dislocation Loops in Lithium Fluoride
Journal of Applied Physics, 1958 Very refined experiments on the movement of single dislocation loops in lithium fiuoride crystals, as revealed by etch pits, have been reported. In this note a somewhat more detailed interpretation is given for one particularly signiflcant experiment. (W.D.M.)
Amelinckx, Severin, Dekeyser, Willy
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Annihilation and sources in continuum dislocation dynamics
Materials Theory, 2018 Continuum dislocation dynamics (CDD) aims at representing the evolution of systems of curved and connected dislocation lines in terms of density-like field variables. Here we discuss how the processes of dislocation multiplication and annihilation can be
Mehran Monavari, Michael Zaiser
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