In-situ characterization of the dislocation-structure evolution in Ni micro-pillars

R Maaß, MD Uchic - Acta Materialia, 2012 - Elsevier
… -pillars could demonstrate dislocation storage as well as evolving lattice rotations
occurring during micro-compression … in internal dislocation microstructure during a micro-compression

Impact of instrumental constraints and imperfections on the dislocation structure in micron-sized Cu compression pillars

C Kirchlechner, J Keckes, C Motz, W Grosinger… - Acta materialia, 2011 - Elsevier
dislocation structures in misaligned samples has not previously been performed. Here, we
present three comparable single-crystalline Cu pillars … shape and dislocation structure due to …

Comparing the strength of fcc and bcc sub-micrometer pillars: Compression experiments and dislocation dynamics simulations

JR Greer, CR Weinberger, W Cai - Materials Science and Engineering: A, 2008 - Elsevier
pillars of sub-micrometer diameter in uniaxial compression tests. … strength is much larger in
Au pillars than in Mo pillars. … time evolution of dislocation structures under external loading in …

Analysis of heterogeneous deformation and dislocation dynamics in single crystal micropillars under compression

S Akarapu, HM Zbib, DF Bahr - International Journal of Plasticity, 2010 - Elsevier
… -local effects that arise from dislocations structures such the so … microscopy of compression
tests of ultra fine pillars (smaller … (2008)) showed that the defects induced by machining pillars

Investigation of geometrically necessary dislocation structures in compressed Cu micropillars by 3-dimensional HR-EBSD

S Kalácska, Z Dankházi, G Zilahi, X Maeder… - Materials Science and …, 2020 - Elsevier
… 4 % pillar to compare dislocation densities … pillar to visualize the actual dislocation structure.
With the 3D HR-EBSD technique we have studied the geometrically necessary dislocations

Critical dimension for the dislocation structure in deformed copper micropillars

XX Zhao, J Wu, YL Chiu, IP Jones, R Gu, AHW Ngan - Scripta Materialia, 2019 - Elsevier
dislocations and hence do not exhibit subcells, in this work we focus on the dislocation structure
in … 1, 3 and 5 μm diameter pillars were compressed at an average (ie including the strain …

Size effects in fcc crystals during the high rate compression test

M Yaghoobi, GZ Voyiadjis - Acta Materialia, 2016 - Elsevier
… In order to study the effects of pillar initial structure on the … on some samples prior to the
compression test. In the case of the … network and studied the effects of initial dislocation structure

Low temperature in-situ micro-compression testing of iron pillars

AB Hagen, C Thaulow - Materials Science and Engineering: A, 2016 - Elsevier
… of a single dislocation to multiply before it exits the pillar surface. Moreover, … compression
tests of bcc pillars at different temperatures. Abad et al. [18] investigated the plasticity structures

Effect of orientation and loading rate on compression behavior of small-scale Mo pillars

AS Schneider, BG Clark, CP Frick, PA Gruber… - Materials Science and …, 2009 - Elsevier
… cubic (fcc) structures, however few pillar studies have focused … crystal structure on the size
effect, through compression testing … that in bcc pillars dislocations did not exit the pillar at the …

Influence of bulk pre-straining on the size effect in nickel compression pillars

AS Schneider, D Kiener, CM Yakacki, HJ Maier… - Materials Science and …, 2013 - Elsevier
… of 5% pre-strained pillars demonstrate that the pillar dislocation density remains relatively
constant during compression, although the nature of the dislocation structure is altered during …