Unprecedented grain size effect on stacking fault width
نویسندگان
چکیده
منابع مشابه
Stacking fault emission from grain boundaries: Material dependencies and grain size effects
When load is applied to fcc nanograins, leading partial dislocations nucleate at grain boundary steps and propagate into the grain, leaving stacking faults behind. The extent to which these faults expand before a trailing partial is emitted generally does not equal the equilibrium separation distance of the corresponding full dislocation. Here we use a density functional theory – phase field di...
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Variable temperature scanning tunneling microscopy experiments reveal that in Ir(111) homoepitaxy islands nucleate and grow both in the regular fcc stacking and in the faulted hcp stacking. Analysis of this effect in dependence on deposition temperature leads to an atomistic model of stacking-fault formation: The large, metastable stacking-fault islands grow by sufficiently fast addition of ada...
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ژورنال
عنوان ژورنال: APL Materials
سال: 2013
ISSN: 2166-532X
DOI: 10.1063/1.4820427