Formation of prismatic dislocation loops during unloading in nanoindentation
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DOI: 10.1016/j.scriptamat.2020.07.062
Abstract: Abstract The formation of prismatic dislocation loops during nanoindentation of bcc iron is simulated with discrete dislocation plasticity. Interestingly, it is not the loading phase, but the unloading phase of the test which is found… read more here.
Keywords: formation prismatic; dislocation; dislocation loops; formation ... See more keywords
In-situ observation of the initiation of plasticity by nucleation of prismatic dislocation loops
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DOI: 10.1038/s41467-020-15775-y
Abstract: The elastic-to-plastic transition during the deformation of a dislocation-free nanoscale volume is accompanied by displacement bursts associated with dislocation nucleation. The dislocations that nucleate during the so-called “pop-in” burst take the form of prismatic dislocation… read more here.
Keywords: microscopy; dislocation; dislocation loops; dislocation free ... See more keywords
Simulation of Helium Behavior Near Subsurface Prismatic Dislocation Loops in Tungsten
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DOI: 10.13182/fst16-110
Abstract: We analyze the effect of subsurface prismatic dislocation loops on the surface morphology and helium clustering behavior of plasma-facing tungsten through the use of molecular dynamics simulations that are moderately large in scale, consisting of… read more here.
Keywords: subsurface prismatic; dislocation; dislocation loops; prismatic dislocation ... See more keywords