EBSD Investigation of Twinned Copper
نویسندگان
چکیده
منابع مشابه
Atomistic deformation mechanisms in twinned copper nanospheres
In the present study, we perform molecular dynamic simulations to investigate the compression response and atomistic deformation mechanisms of twinned nanospheres. The relationship between load and compression depth is calculated for various twin spacing and loading directions. Then, the overall elastic properties and the underlying plastic deformation mechanisms are illuminated. Twin boundarie...
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Large-scale production of high purity (99.999%), nano-twinned, and ultrafine-grained copper foils (22 m thick) was successfully implemented by the use of nanoscale multilayer technology. The process allows the production of up to fourteen 10 cm diameter foils during a single deposition run with high levels of reproducibility. Mechanical tests demonstrate that the strength of the Cu foils (σy ∼ ...
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Molecular dynamics simulations reveal the asymmetrical yield strength of twinned copper nanowires under tension and compression. The simulation results show that the strength of nanowires depends on loading conditions, morphologies, and twin spacing. Under tensile loading condition the Schmidt factor of the leading partial is larger than that under compression. Effectively, the yield strength u...
متن کاملReversible–irreversible plasticity transition in twinned copper nanopillars
Through computer simulations, we show that plasticity in twinned copper nanopillars can be either reversible or irreversible depending on the applied stress state. Copper nanopillars, containing twinned crystals, are subjected to both compression and tension, and the ratio of the resolved shear ðrRÞ to the normal stress ðrN Þ, R, is adjusted through variation of the orientation of the twin boun...
متن کاملSize Effect and Deformation Mechanism in Twinned Copper Nanowires
Molecular dynamics simulations were performed to demonstrate the synergistic effects of the extrinsic size (nanowire length) and intrinsic size (twin boundary spacing) on the failure manner, yield strength, ductility and deformation mechanism of the twinned nanowires containing high density coherent twin boundaries CTBs paralleled to the nanowires’ axis. The twinned nanowires show an intense ex...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2010
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927610055443