The influence of stacking faults on mechanical behavior of advanced materials

R Su, D Neffati, Y Zhang, J Cho, J Li, H Wang… - Materials Science and …, 2021 - Elsevier
There are abundant studies on deformation mechanisms in metallic materials dominated by
grain boundaries and twin boundaries. In comparison, the influence of stacking faults on …

Avalanches and plastic flow in crystal plasticity: an overview

S Papanikolaou, Y Cui, N Ghoniem - Modelling and Simulation in …, 2017 - iopscience.iop.org
Crystal plasticity is mediated through dislocations, which form knotted configurations in a
complex energy landscape. Once they disentangle and move, they may also be impeded by …

A micropillar compression investigation into the plastic flow properties of additively manufactured alloys

SH Li, Y Zhao, J Radhakrishnan, U Ramamurty - Acta Materialia, 2022 - Elsevier
Solidification cells and a high density of dislocations are two common features of additively
manufactured (AM) alloys that are processed using techniques such as laser powder bed …

Strengthening and hardening mechanisms of additively manufactured stainless steels: The role of cell sizes

Z Li, B He, Q Guo - Scripta Materialia, 2020 - Elsevier
We designed micromechanical experiments to examine the deformation behaviors of
austenitic stainless steels fabricated by additive manufacturing. Micro-pillars containing …

Size effects on the mechanical properties of nanocrystalline NbMoTaW refractory high entropy alloy thin films

XB Feng, JY Zhang, YQ Wang, ZQ Hou, K Wu… - International Journal of …, 2017 - Elsevier
The newly-surged high-entropy alloys (HEAs), in particular the refractory HEAs, manifest
excellent properties for practice applications. In this work, we systematically investigated the …

An investigation into the effects of cyclic strain rate on the high cycle and very high cycle fatigue behaviors of wrought and additively manufactured Inconel 718

M Muhammad, P Frye, J Simsiriwong, S Shao… - International Journal of …, 2021 - Elsevier
Additive Manufacturing (AM) has increasingly been used to fabricate parts in aerospace
applications, which may require service lives beyond ten-million cycles due to the imposed …

A deformation mechanism based crystal plasticity model of ultrafine-grained/nanocrystalline FCC polycrystals

AS Khan, J Liu - International Journal of Plasticity, 2016 - Elsevier
A new crystal plasticity model based on the deformation mechanism for ultrafine-grained/
nanocrystalline face-centered cubic (FCC) metals was developed. The deformation …

Differences in deformation behavior of bicrystalline Cu micropillars containing a twin boundary or a large-angle grain boundary

PJ Imrich, C Kirchlechner, C Motz, G Dehm - Acta materialia, 2014 - Elsevier
Micrometer-sized compression pillars containing a grain boundary are investigated to better
understand under which conditions grain boundaries have a strengthening effect. The …

Strain-rate dependent deformation mechanism of graphene-Al nanolaminated composites studied using micro-pillar compression

L Zhao, Q Guo, Z Li, Z Li, G Fan, DB Xiong, Y Su… - International Journal of …, 2018 - Elsevier
Uniaxial compression tests conducted at various strain rates were performed to uncover the
strain-rate dependent deformation mechanism of micro-pillars fabricated from bulk …

[HTML][HTML] Determination of Ti-6242 α and β slip properties using micro-pillar test and computational crystal plasticity

Z Zhang, TS Jun, TB Britton, FPE Dunne - … of the Mechanics and Physics of …, 2016 - Elsevier
The properties and behaviour of an α− β colony Ti-6242 alloy have been investigated at 20°
C utilising coupled micro-pillar stress relaxation tests and computational crystal plasticity …