Grain boundary and particle interaction: Enveloping and pass-through mechanisms studied by 3D phase field crystal simulations
Blixt, Kevin LU and Hallberg, Håkan LU
(2022)
In Materials & Design
220.
- Abstract
- Grain boundary interaction with second-phase particles having different degrees of coherency is investigated using the phase field crystal (PFC) method. Both the enveloping and pass-through mechanisms are studied with regards to grain boundary pressure, passage time and interface evolution. It is found that coherent particles exert a stronger retardation effect on grain boundaries compared to incoherent particles, with regards to both pressure and time, but also that this benefit is limited to a small range of misfit values. The simulations also show that the mobility is not a constant during particle passage, as commonly assumed, which means that grain boundary pressure cannot easily be extracted from the grain boundary velocity.... (More)
- Grain boundary interaction with second-phase particles having different degrees of coherency is investigated using the phase field crystal (PFC) method. Both the enveloping and pass-through mechanisms are studied with regards to grain boundary pressure, passage time and interface evolution. It is found that coherent particles exert a stronger retardation effect on grain boundaries compared to incoherent particles, with regards to both pressure and time, but also that this benefit is limited to a small range of misfit values. The simulations also show that the mobility is not a constant during particle passage, as commonly assumed, which means that grain boundary pressure cannot easily be extracted from the grain boundary velocity. Furthermore, the complex evolution of the pass-through mechanism and the transient behavior for intermediate coherencies is also investigated. The highest drag force is found to occur at the switching point between enveloping and pass-through. As part of the study, the advantages of using PFC for this type of analyses are also highlighted. (Less)
- Abstract (Swedish)
- Grain boundary interaction with second-phase particles having different degrees of coherency is investigated using the phase field crystal (PFC) method. Both the enveloping and pass-through mechanisms are studied with regards to grain boundary pressure, passage time and interface evolution. It is found that coherent particles exert a stronger retardation effect on grain boundaries compared to incoherent particles, with regards to both pressure and time, but also that this benefit is limited to a small range of misfit values. The simulations also show that the mobility is not a constant during particle passage, as commonly assumed, which means that grain boundary pressure cannot easily be extracted from the grain boundary velocity.... (More)
- Grain boundary interaction with second-phase particles having different degrees of coherency is investigated using the phase field crystal (PFC) method. Both the enveloping and pass-through mechanisms are studied with regards to grain boundary pressure, passage time and interface evolution. It is found that coherent particles exert a stronger retardation effect on grain boundaries compared to incoherent particles, with regards to both pressure and time, but also that this benefit is limited to a small range of misfit values. The simulations also show that the mobility is not a constant during particle passage, as commonly assumed, which means that grain boundary pressure cannot easily be extracted from the grain boundary velocity. Furthermore, the complex evolution of the pass-through mechanism and the transient behavior for intermediate coherencies is also investigated. The highest drag force is found to occur at the switching point between enveloping and pass-through. As part of the study, the advantages of using PFC for this type of analyses are also highlighted. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/e33fd5bd-1258-400f-a301-8a7706c7202b
- author
- Blixt, Kevin
LU
and Hallberg, Håkan
LU
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Grain growth, Grain boundary migration, Nanoparticles, Nanocrystalline microstructure, Phase field crystal
- in
- Materials & Design
- volume
- 220
- article number
- 110845
- publisher
- Elsevier
- external identifiers
-
- scopus:85132790751
- ISSN
- 0261-3069
- DOI
- 10.1016/j.matdes.2022.110845
- project
- Phase Field Crystal Modeling of Microstructure Mechanics
- language
- English
- LU publication?
- yes
- id
- e33fd5bd-1258-400f-a301-8a7706c7202b
- date added to LUP
- 2022-07-02 10:49:25
- date last changed
- 2022-08-01 11:46:10
@article{e33fd5bd-1258-400f-a301-8a7706c7202b,
abstract = {{Grain boundary interaction with second-phase particles having different degrees of coherency is investigated using the phase field crystal (PFC) method. Both the enveloping and pass-through mechanisms are studied with regards to grain boundary pressure, passage time and interface evolution. It is found that coherent particles exert a stronger retardation effect on grain boundaries compared to incoherent particles, with regards to both pressure and time, but also that this benefit is limited to a small range of misfit values. The simulations also show that the mobility is not a constant during particle passage, as commonly assumed, which means that grain boundary pressure cannot easily be extracted from the grain boundary velocity. Furthermore, the complex evolution of the pass-through mechanism and the transient behavior for intermediate coherencies is also investigated. The highest drag force is found to occur at the switching point between enveloping and pass-through. As part of the study, the advantages of using PFC for this type of analyses are also highlighted.}},
author = {{Blixt, Kevin and Hallberg, Håkan}},
issn = {{0261-3069}},
keywords = {{Grain growth; Grain boundary migration; Nanoparticles; Nanocrystalline microstructure; Phase field crystal}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Materials & Design}},
title = {{Grain boundary and particle interaction: Enveloping and pass-through mechanisms studied by 3D phase field crystal simulations}},
url = {{http://dx.doi.org/10.1016/j.matdes.2022.110845}},
doi = {{10.1016/j.matdes.2022.110845}},
volume = {{220}},
year = {{2022}},
}