Deformation twinning in nanocrystalline materials
Nanocrystalline (nc) materials can be defined as solids with grain sizes in the range of 1–
100 nm. Contrary to coarse-grained metals, which become more difficult to twin with …
100 nm. Contrary to coarse-grained metals, which become more difficult to twin with …
“Bulk” nanocrystalline metals: review of the current state of the art and future opportunities for copper and copper alloys
It is a new beginning for innovative fundamental and applied science in nanocrystalline
materials. Many of the processing and consolidation challenges that have haunted …
materials. Many of the processing and consolidation challenges that have haunted …
Dislocation nucleation governed softening and maximum strength in nano-twinned metals
In conventional metals, there is plenty of space for dislocations—line defects whose motion
results in permanent material deformation—to multiply, so that the metal strengths are …
results in permanent material deformation—to multiply, so that the metal strengths are …
Plastic anisotropy and associated deformation mechanisms in nanotwinned metals
Anisotropic plastic deformation in columnar-grained copper in which preferentially oriented
nanoscale twins are embedded is studied by experimental testing, crystal plasticity modeling …
nanoscale twins are embedded is studied by experimental testing, crystal plasticity modeling …
Dislocation–twin interactions in nanocrystalline fcc metals
Dislocation interaction with and accumulation at twin boundaries have been reported to
significantly improve the strength and ductility of nanostructured face-centered cubic (fcc) …
significantly improve the strength and ductility of nanostructured face-centered cubic (fcc) …
Plastic deformation mechanism in nanotwinned metals: An insight from molecular dynamics and mechanistic modeling
An overview is given of the deformation mechanisms in nanotwinned copper, as studied by
recent molecular dynamics, dislocation mechanics and crystal plasticity modeling. We …
recent molecular dynamics, dislocation mechanics and crystal plasticity modeling. We …
Tensile behavior of columnar grained Cu with preferentially oriented nanoscale twins
ZS You, L Lu, K Lu - Acta Materialia, 2011 - Elsevier
By means of direct current electrodeposition nanoscale twins confined within microsized
columnar grains of bulk Cu samples have been synthesized which are preferentially …
columnar grains of bulk Cu samples have been synthesized which are preferentially …
Atomic-scale simulation of screw dislocation/coherent twin boundary interaction in Al, Au, Cu and Ni
The influence of material and choice of interatomic potential on the interaction between an
a/2〈 110〉{111} screw dislocation and a Σ3 {111}〈 110〉 coherent twin boundary (CTB) is …
a/2〈 110〉{111} screw dislocation and a Σ3 {111}〈 110〉 coherent twin boundary (CTB) is …
The effect of dislocation density on the interactions between dislocations and twin boundaries in nanocrystalline materials
The interactions between dislocations and twin boundaries (TBs) are significantly affected
by both intrinsic material properties and extrinsic factors, including stacking fault energy, the …
by both intrinsic material properties and extrinsic factors, including stacking fault energy, the …
In situ atomic-scale observation of grain size and twin thickness effect limit in twin-structural nanocrystalline platinum
L Wang, K Du, C Yang, J Teng, L Fu, Y Guo… - Nature …, 2020 - nature.com
Twin-thickness-controlled plastic deformation mechanisms are well understood for
submicron-sized twin-structural polycrystalline metals. However, for twin-structural …
submicron-sized twin-structural polycrystalline metals. However, for twin-structural …