Correlating dislocation structures to basal and prismatic slip bands near grain boundaries in tensile-tested Mg–4Al using a multiscale electron microscopy approach
Abstract
Dislocation structures where basal and prismatic slip bands meet grain boundaries in tensile-tested Mg with 4 wt% Al (Mg–4Al) were studied using a multiscale electron microscopy approach to explore the assumptions made for the dislocation pileup theory: a) slip bands consist of dislocation arrays piling up near grain boundaries, and b) stress concentration in the adjacent grain is solely caused by dislocation pileup. After post-testing electron backscatter diffraction (EBSD) scans, focused-ion-beam (FIB) lift-out specimens were prepared from regions of interest so that the specimen plane is parallel to the bulk sample surface to allow for direct correlation between mesoscale and microscale characterization. High dislocation density and the dislocation arrays in the slip bands corroborated with the first assumption. Evidence of plastic deformation in all grains, however, showed that the second assumption was false. Additionally, dislocation structures including crystal rotation boundaries and dislocations dissociating to the basal plane provide additional stress relief mechanisms near grain boundaries that are not accounted for in many crystal plasticity models, which requires auxiliary models to more accurately predict the stress and strain distribution in a microstructure.
- Publication Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1977467
- Alternate Identifier(s):
- OSTI ID: 1856049
- Grant/Contract Number:
- SC0008637
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
- Additional Journal Information:
- Journal Volume: 840; Journal Issue: C; Journal ID: ISSN 0921-5093
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Science & Technology; Materials science; Metallurgy & Metallurgical Engineering; Mg; Basal slip; Nonbasal slip; EBSD; TEM; Hall-petch
Citation Formats
Yoo, Yung Suk Jeremy, Andani, Mohsen Taheri, and Misra, Amit. Correlating dislocation structures to basal and prismatic slip bands near grain boundaries in tensile-tested Mg–4Al using a multiscale electron microscopy approach. United States: N. p., 2022.
Web. doi:10.1016/j.msea.2022.142993.
Yoo, Yung Suk Jeremy, Andani, Mohsen Taheri, & Misra, Amit. Correlating dislocation structures to basal and prismatic slip bands near grain boundaries in tensile-tested Mg–4Al using a multiscale electron microscopy approach. United States. https://doi.org/10.1016/j.msea.2022.142993
Yoo, Yung Suk Jeremy, Andani, Mohsen Taheri, and Misra, Amit. Fri .
"Correlating dislocation structures to basal and prismatic slip bands near grain boundaries in tensile-tested Mg–4Al using a multiscale electron microscopy approach". United States. https://doi.org/10.1016/j.msea.2022.142993. https://www.osti.gov/servlets/purl/1977467.
@article{osti_1977467,
title = {Correlating dislocation structures to basal and prismatic slip bands near grain boundaries in tensile-tested Mg–4Al using a multiscale electron microscopy approach},
author = {Yoo, Yung Suk Jeremy and Andani, Mohsen Taheri and Misra, Amit},
abstractNote = {Dislocation structures where basal and prismatic slip bands meet grain boundaries in tensile-tested Mg with 4 wt% Al (Mg–4Al) were studied using a multiscale electron microscopy approach to explore the assumptions made for the dislocation pileup theory: a) slip bands consist of dislocation arrays piling up near grain boundaries, and b) stress concentration in the adjacent grain is solely caused by dislocation pileup. After post-testing electron backscatter diffraction (EBSD) scans, focused-ion-beam (FIB) lift-out specimens were prepared from regions of interest so that the specimen plane is parallel to the bulk sample surface to allow for direct correlation between mesoscale and microscale characterization. High dislocation density and the dislocation arrays in the slip bands corroborated with the first assumption. Evidence of plastic deformation in all grains, however, showed that the second assumption was false. Additionally, dislocation structures including crystal rotation boundaries and dislocations dissociating to the basal plane provide additional stress relief mechanisms near grain boundaries that are not accounted for in many crystal plasticity models, which requires auxiliary models to more accurately predict the stress and strain distribution in a microstructure.},
doi = {10.1016/j.msea.2022.142993},
journal = {Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing},
number = C,
volume = 840,
place = {United States},
year = {Fri Mar 18 00:00:00 EDT 2022},
month = {Fri Mar 18 00:00:00 EDT 2022}
}
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Works referenced in this record:
Transmission Kikuchi diffraction and transmission electron forescatter imaging of electropolished and FIB manufactured TEM specimens
journal, June 2015
- Zieliński, W.; Płociński, T.; Kurzydłowski, K. J.
- Materials Characterization, Vol. 104
Mapping the full lattice strain tensor of a single dislocation by high angular resolution transmission Kikuchi diffraction (HR-TKD)
journal, April 2019
- Yu, Hongbing; Liu, Junliang; Karamched, Phani
- Scripta Materialia, Vol. 164
Crack propagation in AA3xxx during deep drawing investigated using a combined TKD/dictionary indexing approach
journal, March 2021
- Yoo, Yung Suk Jeremy; Mullins, Anastasia; Das, Sazol
- Journal of Materials Research, Vol. 36, Issue 13
The plastic deformation of polycrystalline aggregates
journal, January 1962
- Armstrong, R.; Codd, I.; Douthwaite, R. M.
- The Philosophical Magazine: A Journal of Theoretical Experimental and Applied Physics, Vol. 7, Issue 73
AnIn Situ transmission electron microscope deformation study of the slip transfer mechanisms in metals
journal, September 1990
- Lee, T. C.; Robertson, I. M.; Birnbaum, H. K.
- Metallurgical Transactions A, Vol. 21, Issue 9
The mechanism for the high dependence of the Hall-Petch slope for twinning/slip on texture in Mg alloys
journal, April 2017
- Yu, Huihui; Li, Changzheng; Xin, Yunchang
- Acta Materialia, Vol. 128
Applications of multivariate statistical methods and simulation libraries to analysis of electron backscatter diffraction and transmission Kikuchi diffraction datasets
journal, January 2019
- Wilkinson, Angus J.; Collins, David M.; Zayachuk, Yevhen
- Ultramicroscopy, Vol. 196
Influence of grain size and texture on Hall–Petch relationship for a magnesium alloy
journal, December 2011
- Yuan, W.; Panigrahi, S. K.; Su, J. -Q.
- Scripta Materialia, Vol. 65, Issue 11
Influence of texture on Hall–Petch relationships in an Mg alloy
journal, December 2014
- Wang, Yi; Choo, Hahn
- Acta Materialia, Vol. 81
Relating microstructure to defect behavior in AA6061 using a combined computational and multiscale electron microscopy approach
journal, August 2019
- Yoo, Yung Suk Jeremy; Lim, Hojun; Emery, John
- Acta Materialia, Vol. 174
Mean-field polycrystal plasticity modeling with grain size and shape effects for laser additive manufactured FCC metals
journal, May 2017
- Liu, Jian; Xiong, Wei; Behera, Amit
- International Journal of Solids and Structures, Vol. 112
Dislocation Pile-Ups, Material Strength Levels, and Thermal Activation
journal, September 2015
- Armstrong, Ronald W.
- Metallurgical and Materials Transactions A, Vol. 47, Issue 12
An improved FIB sample preparation technique for site-specific plan-view specimens: A new cutting geometry
journal, January 2018
- Li, Chen; Habler, Gerlinde; Baldwin, Lisa C.
- Ultramicroscopy, Vol. 184
Correlating results from high resolution EBSD with TEM- and ECCI-based dislocation microscopy: Approaching single dislocation sensitivity via noise reduction
journal, March 2020
- Ruggles, T. J.; Yoo, Y. S. J.; Dunlap, B. E.
- Ultramicroscopy, Vol. 210
Dislocation density distribution at slip band-grain boundary intersections
journal, January 2020
- Guo, Yi; Collins, David M.; Tarleton, Edmund
- Acta Materialia, Vol. 182
A probabilistic crystal plasticity model for modeling grain shape effects based on slip geometry
journal, August 2012
- Sun, Shang; Sundararaghavan, Veera
- Acta Materialia, Vol. 60, Issue 13-14
The limiting grain size dependence of the strength of a polycrystalline aggregate
journal, October 1966
- Armstrong†, R. W.; Chou, Y. T.; Fisher, R. M.
- Philosophical Magazine, Vol. 14, Issue 131
Using transmission Kikuchi diffraction to study intergranular stress corrosion cracking in type 316 stainless steels
journal, August 2015
- Meisnar, Martina; Vilalta-Clemente, Arantxa; Gholinia, Ali
- Micron, Vol. 75
TEM study on relationship between stacking faults and non-basal dislocations in Mg
journal, October 2015
- Zhang, Dalong; Jiang, Lin; Schoenung, Julie M.
- Philosophical Magazine, Vol. 95, Issue 34
Transmission electron microscopy investigation of 〈c+a〉 dislocations in Mg and α-solid solution Mg-Li alloys
journal, March 2002
- Agnew, S. R.; Horton, J. A.; Yoo, M. H.
- Metallurgical and Materials Transactions A, Vol. 33, Issue 3
A mechanism for the generation of screw dislocations from grain-boundary ledges
journal, January 1972
- Price, C. W.; Hirth, J. P.
- Materials Science and Engineering, Vol. 9
Hardening evolution of AZ31B Mg sheet
journal, January 2007
- Lou, X.; Li, M.; Boger, R.
- International Journal of Plasticity, Vol. 23, Issue 1
The Deformation and Ageing of Mild Steel: III Discussion of Results
journal, September 1951
- Hall, E. O.
- Proceedings of the Physical Society. Section B, Vol. 64, Issue 9
Estimations of bulk geometrically necessary dislocation density using high resolution EBSD
journal, October 2013
- Ruggles, T. J.; Fullwood, D. T.
- Ultramicroscopy, Vol. 133
Nonbasal deformation modes of HCP metals and alloys: Role of dislocation source and mobility
journal, March 2002
- Yoo, M. H.; Morris, J. R.; Ho, K. M.
- Metallurgical and Materials Transactions A, Vol. 33, Issue 3
Mechanistic origin and prediction of enhanced ductility in magnesium alloys
journal, January 2018
- Wu, Zhaoxuan; Ahmad, Rasool; Yin, Binglun
- Science, Vol. 359, Issue 6374
Quantitative study of the effect of grain boundary parameters on the slip system level Hall-Petch slope for basal slip system in Mg-4Al
journal, November 2020
- Andani, Mohsen Taheri; Lakshmanan, Aaditya; Sundararaghavan, Veera
- Acta Materialia, Vol. 200
Some observations of grain boundary ledges and ledges as dislocation sources in metals and alloys
journal, March 1975
- Murr, L. E.
- Metallurgical Transactions A, Vol. 6, Issue 3
The origins of high hardening and low ductility in magnesium
journal, September 2015
- Wu, Zhaoxuan; Curtin, W. A.
- Nature, Vol. 526, Issue 7571
A quantitative study of stress fields ahead of a slip band blocked by a grain boundary in unalloyed magnesium
journal, February 2020
- Andani, Mohsen Taheri; Lakshmanan, Aaditya; Karamooz-Ravari, Mohammadreza
- Scientific Reports, Vol. 10, Issue 1
In-situ EBSD study of the active slip systems and lattice rotation behavior of surface grains in aluminum alloy during tensile deformation
journal, September 2013
- Chen, P.; Mao, S. C.; Liu, Y.
- Materials Science and Engineering: A, Vol. 580
Superior light metals by texture engineering: Optimized aluminum and magnesium alloys for automotive applications
journal, February 2013
- Hirsch, J.; Al-Samman, T.
- Acta Materialia, Vol. 61, Issue 3
Effective values of critical resolved shear stress for slip in polycrystalline magnesium and other hcp metals
journal, October 2010
- Hutchinson, W. B.; Barnett, M. R.
- Scripta Materialia, Vol. 63, Issue 7
Non-basal slip systems in HCP metals and alloys: source mechanisms
journal, December 2001
- Yoo, M. H.; Agnew, S. R.; Morris, J. R.
- Materials Science and Engineering: A, Vol. 319-321
A micromechanical theory of grain-size dependence in metal plasticity
journal, January 1983
- Weng, G. J.
- Journal of the Mechanics and Physics of Solids, Vol. 31, Issue 3