Orientation dependent hardening of {111} plate precipitate by parametric dislocation dynamics

J Liu, S Muraishi - Mechanics of Materials, 2021 - Elsevier
The effects of the orientation, geometry of slip plane, existence of cross slip on the
dislocation interaction with a {111} plate precipitate has been investigated by parametric …

Dislocation Topological Evolution and Energy Analysis in Misfit Hardening of Spherical Precipitate by the Parametric Dislocation Dynamics Simulation

H Zheng, J Liu, S Muraishi - Materials, 2021 - mdpi.com
Interaction of a single dislocation line and a misfit spherical precipitate has been simulated
by the Parametric Dislocation Dynamics (PDD) method in this research. The internal stress …

Energy analysis of misfit hardening by parametric dislocation dynamics simulation

J Liu, S Muraishi - Computational Materials Science, 2020 - Elsevier
The interaction between dislocation and misfitting precipitate has been investigated by the
parametric dislocation dynamics (PDD) based on Green's function method. The present …

Dislocation dynamics simulations of dislocation-particle bypass mechanisms

J Liu, S Muraishi - Materials Science Forum, 2020 - Trans Tech Publ
Effect of precipitation strengthening on metal is generally attributed to the dislocation
interaction with the precipitate which acts as the barrier to the dislocation motion on the slip …

Internal Stress and Dislocation Interaction of Plate-Shaped Misfitting Precipitates in Aluminum Alloys

S Muraishi - Materials, 2021 - mdpi.com
The fine misfit precipitates in age-hardenable aluminum alloys have important roles due to
their excellent age-hardening ability, by their interaction with dislocations. The present study …

Analysis of dislocation microstructure characteristics of surface grains under cyclic loading by discrete dislocation dynamics

T El-Achkar, D Weygand - Modelling and Simulation in Materials …, 2019 - iopscience.iop.org
The dislocation structure formation under low-amplitude fatigue in fcc metals for multislip
loading conditions is investigated using three-dimensional discrete dislocation dynamics …

Cyclic hardening behavior of polycrystals with penetrable grain boundaries: two-dimensional discrete dislocation dynamics simulation

C Hou, Z Li, M Huang, C Ouyang - Acta Mechanica Solida Sinica, 2009 - Springer
A two-dimensional discrete dislocation dynamics (DDD) technology by Giessen and
Needleman (1995), which has been extended by integrating a dislocation-grain boundary …

Stability and motion of low angle dislocation boundaries in precipitation hardened crystals

D Holec, A Dlouhý - Materials Science Forum, 2005 - Trans Tech Publ
The present study investigates stability and motion of low angle dislocation boundaries in an
array of precipitates. The model considers discrete dislocations and precipitates that are …

Dislocation–impenetrable precipitate interaction: a three-dimensional discrete dislocation dynamics analysis

CS Shin, MC Fivel¶, M Verdier, KH Oh - Philosophical Magazine, 2003 - Taylor & Francis
In an attempt to better understand the effect of the difference between the shear moduli of
the particle and matrix on the flow stress and the work hardening, a numerical approach …

An efficient computational technique for modeling dislocation–precipitate interactions within dislocation dynamics

A Keyhani, R Roumina, S Mohammadi - Computational Materials Science, 2016 - Elsevier
A new computational technique for modeling dislocation interactions with shearable and
non-shearable precipitates within the line dislocation dynamics framework is presented …