Identification of active slip systems in polycrystals by Slip Trace - Modified Lattice Rotation Analysis (ST-MLRA)
Identification of active slip systems in polycrystals by Slip Trace - Modified Lattice Rotation Analysis (ST-MLRA)
A simple and versatile strategy, denominated Slip Trace - Modified Lattice Rotation Analysis (ST-MLRA), is presented to enable the identification of the active slip systems in polycrystalline alloys from surface information. The slip plane trace orientation is used to define the potential active slip planes while the actual slip direction within the active slip plane is obtained from the grain rotation, as indicated by the stretching of the trace of the grain orientation in the pole figure as a result of deformation. Examples of application of the strategy in a HCP Mg alloy are presented for illustration. They show that the strategy is simple to implement and allows to identify the active slip system(s) in each grain.
Dislocation slip, Magnesium, Plastic deformation, Polycrystals, Slip Trace - Modified Lattice Rotation Analysis (ST-MLRA)
Yang, Biaobiao
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Shi, Chenying
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Lai, Ruilin
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Shi, Dongfeng
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Guan, Dikai
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Zhu, Gaoming
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Cui, Yujie
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Xie, Guoqiang
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Li, Yunping
ba1e443c-b838-4214-a6b8-ebace0733b61
Chiba, Akihiko
40918402-5e0c-42dd-bc57-54da08c41e87
LLorca, Javier
9560fc88-10dc-4849-bb29-788012d138d6
1 June 2022
Yang, Biaobiao
682129b9-d865-4c9d-9934-2ac17e3bab4e
Shi, Chenying
f4d8979b-9a64-4cd3-b4f0-a22f63564902
Lai, Ruilin
4962bb09-8840-48bd-a833-cba5ec4ad452
Shi, Dongfeng
ab317578-0d7c-4607-bc5c-75ce64fbed5a
Guan, Dikai
d20c4acc-342a-43fa-a204-7283f0cc33bf
Zhu, Gaoming
97cc3176-809a-413e-a62c-824988f1af1b
Cui, Yujie
b94d5b0d-1544-4fc1-bc74-b0d0d19587b7
Xie, Guoqiang
76e68263-08e6-4f1d-a036-eee804962578
Li, Yunping
ba1e443c-b838-4214-a6b8-ebace0733b61
Chiba, Akihiko
40918402-5e0c-42dd-bc57-54da08c41e87
LLorca, Javier
9560fc88-10dc-4849-bb29-788012d138d6
Yang, Biaobiao, Shi, Chenying, Lai, Ruilin, Shi, Dongfeng, Guan, Dikai, Zhu, Gaoming, Cui, Yujie, Xie, Guoqiang, Li, Yunping, Chiba, Akihiko and LLorca, Javier
(2022)
Identification of active slip systems in polycrystals by Slip Trace - Modified Lattice Rotation Analysis (ST-MLRA).
Scripta Materialia, 214, [114648].
(doi:10.1016/j.scriptamat.2022.114648).
Abstract
A simple and versatile strategy, denominated Slip Trace - Modified Lattice Rotation Analysis (ST-MLRA), is presented to enable the identification of the active slip systems in polycrystalline alloys from surface information. The slip plane trace orientation is used to define the potential active slip planes while the actual slip direction within the active slip plane is obtained from the grain rotation, as indicated by the stretching of the trace of the grain orientation in the pole figure as a result of deformation. Examples of application of the strategy in a HCP Mg alloy are presented for illustration. They show that the strategy is simple to implement and allows to identify the active slip system(s) in each grain.
Text
1-s2.0-S1359646222001488-main
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Accepted/In Press date: 1 March 2022
e-pub ahead of print date: 9 March 2022
Published date: 1 June 2022
Additional Information:
Funding Information:
This investigation was supported by the grant from the Natural Science Foundation of China ( 51871244 ), the Hunan Provincial Innovation Foundation for Postgraduate ( CX20200172 ) and the Fundamental Research Funds for the Central Universities of Central South University ( 1053320190103 ). Mr. B. Yang wishes to express his gratitude to Mr. Shaolou Wei from Massachusetts Institute of Technology for the assistance on slip trace analysis and the support by China Scholarship Council ( 202106370122 ). Dr. D. Guan would like to thank the MRC for his UKRI Future Leaders Fellowship, MR/T019123/1. Prof. J. LLorca acknowledges the support from the HexaGB project of the Spanish Ministry of Science and Innovation (reference RTI2018–098245 , MCIN/AEI/ 10.13039/501100011033 ).
Keywords:
Dislocation slip, Magnesium, Plastic deformation, Polycrystals, Slip Trace - Modified Lattice Rotation Analysis (ST-MLRA)
Identifiers
Local EPrints ID: 474079
URI: http://eprints.soton.ac.uk/id/eprint/474079
ISSN: 1359-6462
PURE UUID: dda9363d-d56e-43f3-a2e5-b35cd93bf2c7
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Date deposited: 10 Feb 2023 18:02
Last modified: 17 Mar 2024 04:17
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Contributors
Author:
Biaobiao Yang
Author:
Chenying Shi
Author:
Ruilin Lai
Author:
Dongfeng Shi
Author:
Dikai Guan
Author:
Gaoming Zhu
Author:
Yujie Cui
Author:
Guoqiang Xie
Author:
Yunping Li
Author:
Akihiko Chiba
Author:
Javier LLorca
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