Emergence of external size effects in the bulk-scale polycrystal to small-scale single-crystal transition: A maximum in the strength and strain-rate sensitivity of …
JY Zhang, X Liang, P Zhang, K Wu, G Liu, J Sun - Acta materialia, 2014 - Elsevier
Using microcompression methodology, various plastic deformation characteristics, namely
the strength, strain-rate sensitivity (SRS) and activation volume, of< 1 0 0>-single-crystalline …
the strength, strain-rate sensitivity (SRS) and activation volume, of< 1 0 0>-single-crystalline …
Strain rate effects on the mechanical response in multi-and single-crystalline Cu micropillars: Grain boundary effects
JY Zhang, G Liu, J Sun - International Journal of Plasticity, 2013 - Elsevier
Homogeneous interfaces like grain boundaries (GBs) play an important role in crystalline
plasticity as they often serve as obstacles for dislocation motion, as well as dislocation …
plasticity as they often serve as obstacles for dislocation motion, as well as dislocation …
Comparisons between homogeneous boundaries and heterophase interfaces in plastic deformation: Nanostructured Cu micropillars vs. nanolayered Cu-based …
JY Zhang, G Liu, J Sun - Acta materialia, 2013 - Elsevier
Both the homogeneous boundaries and the heterophase interfaces play important roles in
crystalline plasticity as they often serve as obstacles for dislocation motion, as well as …
crystalline plasticity as they often serve as obstacles for dislocation motion, as well as …
Transition from homogeneous-like to shear-band deformation in nanolayered crystalline Cu/amorphous Cu–Zr micropillars: Intrinsic vs. extrinsic size effect
JY Zhang, G Liu, SY Lei, JJ Niu, J Sun - Acta Materialia, 2012 - Elsevier
The microcompression method was used to investigate the compressive plastic flow
behavior of nanolayered crystalline/amorphous (C/A) Cu/Cu–Zr micropillars within wide …
behavior of nanolayered crystalline/amorphous (C/A) Cu/Cu–Zr micropillars within wide …
Statistical analysis of the size-and rate-dependence of yield and plastic flow in nanocrystalline copper pillars
The effects of specimen size and strain rate on the plastic deformation response of sub-μm-
sized nanocrystalline Cu pillars were examined through a series of micro-compression …
sized nanocrystalline Cu pillars were examined through a series of micro-compression …
[HTML][HTML] Anomalous high strain rate compressive behavior of additively manufactured copper micropillars
R Ramachandramoorthy, S Kalácska, G Poras… - Applied Materials …, 2022 - Elsevier
Microscale dynamic testing is vital to the understanding of material behavior at application
relevant strain rates. However, despite two decades of intense micromechanics research …
relevant strain rates. However, despite two decades of intense micromechanics research …
[HTML][HTML] Size scaling in bi-crystalline Cu micropillars containing a coherent twin boundary
R Hosseinabadi, H Riesch-Oppermann, JP Best… - Acta Materialia, 2022 - Elsevier
The impact of a coherent twin boundary (CTB) on the size scaling of the shear stress in
micropillar compression tests has been investigated through microcompression of bi …
micropillar compression tests has been investigated through microcompression of bi …
Intrinsic and extrinsic size effects on deformation in nanolayered Cu/Zr micropillars: From bulk-like to small-volume materials behavior
By using microcompression methodology, deformation of nanolayered Cu/Zr micropillars
was systematically investigated within wide ranges of intrinsic layer thickness (5–100nm) …
was systematically investigated within wide ranges of intrinsic layer thickness (5–100nm) …
A fundamental understanding of how dislocation densities affect strain hardening behavior in copper single crystalline micropillars
Under mechanical loading, the strain hardening behavior of crystalline face-centered cubic
(FCC) metals is of critical importance in determining fracture behavior and overall …
(FCC) metals is of critical importance in determining fracture behavior and overall …
Combined influences of micro-pillar geometry and substrate constraint on microplastic behavior of compressed single-crystal micro-pillar: Two-dimensional discrete …
2D discrete dislocation dynamic modeling of compressed micro-pillars attached on a huge
base is executed to study the size-dependent microplastic behavior of micro-pillars and the …
base is executed to study the size-dependent microplastic behavior of micro-pillars and the …