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Title: Deformation twinning and grain partitioning in a hexagonal close-packed magnesium alloy

Abstract

Pervasive deformation twinning in magnesium greatly affects its strength and formability. The local stress fields associated with twinning play a key role on deformation behavior and fracture but are extremely difficult to characterize experimentally. In this study, we perform synchrotron experiments with differential-aperture X-ray microscopy to measure the 3D stress fields in the vicinity of a twin with a spatial resolution of 0.5 micrometer. The measured local stress field aids to identify the sequence of events involved with twinning. We find that the selected grain deforms elastically before twinning, and the twin formation splits the grain into two non-interacting domains. Under further straining one domain of the grain continued to deform elastically, whereas the other domain deforms plastically by prismatic slip. This heterogeneous deformation behavior may be mediated by the surrounding medium and it is likely to lead to asymmetric twin growth.

Authors:
 [1]; ORCiD logo [1];  [1];  [1];  [2];  [2];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Argonne Photon Source
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1483536
Alternate Identifier(s):
OSTI ID: 1502501
Report Number(s):
LA-UR-18-24916
Journal ID: ISSN 2041-1723
Grant/Contract Number:  
89233218CNA000001; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 9; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; mechanical properties; metals and alloys

Citation Formats

Arul Kumar, M., Clausen, B., Capolungo, L., McCabe, R. J., Liu, W., Tischler, J. Z., and Tomé, C. N. Deformation twinning and grain partitioning in a hexagonal close-packed magnesium alloy. United States: N. p., 2018. Web. doi:10.1038/s41467-018-07028-w.
Arul Kumar, M., Clausen, B., Capolungo, L., McCabe, R. J., Liu, W., Tischler, J. Z., & Tomé, C. N. Deformation twinning and grain partitioning in a hexagonal close-packed magnesium alloy. United States. https://doi.org/10.1038/s41467-018-07028-w
Arul Kumar, M., Clausen, B., Capolungo, L., McCabe, R. J., Liu, W., Tischler, J. Z., and Tomé, C. N. Mon . "Deformation twinning and grain partitioning in a hexagonal close-packed magnesium alloy". United States. https://doi.org/10.1038/s41467-018-07028-w. https://www.osti.gov/servlets/purl/1483536.
@article{osti_1483536,
title = {Deformation twinning and grain partitioning in a hexagonal close-packed magnesium alloy},
author = {Arul Kumar, M. and Clausen, B. and Capolungo, L. and McCabe, R. J. and Liu, W. and Tischler, J. Z. and Tomé, C. N.},
abstractNote = {Pervasive deformation twinning in magnesium greatly affects its strength and formability. The local stress fields associated with twinning play a key role on deformation behavior and fracture but are extremely difficult to characterize experimentally. In this study, we perform synchrotron experiments with differential-aperture X-ray microscopy to measure the 3D stress fields in the vicinity of a twin with a spatial resolution of 0.5 micrometer. The measured local stress field aids to identify the sequence of events involved with twinning. We find that the selected grain deforms elastically before twinning, and the twin formation splits the grain into two non-interacting domains. Under further straining one domain of the grain continued to deform elastically, whereas the other domain deforms plastically by prismatic slip. This heterogeneous deformation behavior may be mediated by the surrounding medium and it is likely to lead to asymmetric twin growth.},
doi = {10.1038/s41467-018-07028-w},
journal = {Nature Communications},
number = ,
volume = 9,
place = {United States},
year = {Mon Nov 12 00:00:00 EST 2018},
month = {Mon Nov 12 00:00:00 EST 2018}
}

Journal Article:
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Cited by: 52 works
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Figures / Tables:

Fig 1 Fig 1 : Orientation mapping of twin microstructure using polychromatic beam. a Schematic representation of the experimental geometry and mapping area at different height. b Orientation map of the region of interest with 1 μm step size. The selected grain with twin is highlighted. c Basal pole figure of themore » orientation map for all the voxels present in the scan. The orientation of the selected grain for strain measurement is marked in the pole figure. d–f Orientation maps of the same region of interest at different height with 2 μm step size« less

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Experimental Characterization and Crystal Plasticity Modeling of Heterogeneous Deformation in Polycrystalline α-Ti
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Study of $$ \{ 11\bar{2} 1\} $$ Twinning in α-Ti by EBSD and Laue Microdiffraction
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Observations of the Atomic Structure of Tensile and Compressive Twin Boundaries and Twin–Twin Interactions in Zirconium
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Multislip in f.c.c. crystals a theoretical approach compared with experimental data
journal, August 1982


Deformation twinning
journal, January 1995


Modeling texture, twinning and hardening evolution during deformation of hexagonal materials
journal, April 2007


Nucleation and growth of twins in Zr: A statistical study
journal, December 2009


Yield point elongation due to twinning in a magnesium alloy
journal, February 2012


Spatially resolved in situ strain measurements from an interior twinned grain in bulk polycrystalline AZ31 alloy
journal, June 2013


The roles of grain boundary dislocations and disclinations in the nucleation of {102} twinning
journal, January 2014


Twin–twin interactions in magnesium
journal, September 2014


Numerical study of the stress state of a deformation twin in magnesium
journal, February 2015


Explicit incorporation of deformation twins into crystal plasticity finite element models
journal, October 2015

  • Ardeljan, Milan; McCabe, Rodney J.; Beyerlein, Irene J.
  • Computer Methods in Applied Mechanics and Engineering, Vol. 295
  • DOI: 10.1016/j.cma.2015.07.003

Incorporation of twinning into a crystal plasticity finite element model: Evolution of lattice strains and texture in Zircaloy-2
journal, November 2011

  • Abdolvand, Hamidreza; Daymond, Mark R.; Mareau, Charles
  • International Journal of Plasticity, Vol. 27, Issue 11
  • DOI: 10.1016/j.ijplas.2011.04.005

A crystal plasticity model for hexagonal close packed (HCP) crystals including twinning and de-twinning mechanisms
journal, October 2013


On the strength of dislocation interactions and their effect on latent hardening in pure Magnesium
journal, November 2014


Crack opening due to deformation twin shear at grain boundaries in near-γ TiAl
journal, January 2007


Crack initiation mechanism of extruded AZ31 magnesium alloy in the very high cycle fatigue regime
journal, September 2008


The role of twinning–detwinning on fatigue fracture morphology of Mg–3%Al–1%Zn alloy
journal, October 2008


In-situ, ex-situ EBSD and (HR-)TEM analyses of primary, secondary and tertiary twin development in an Mg–4 wt%Li alloy
journal, July 2014


Role of alloying elements on twin growth and twin transmission in magnesium alloys
journal, October 2017

  • Arul Kumar, M.; Beyerlein, I. J.; Lebensohn, R. A.
  • Materials Science and Engineering: A, Vol. 706
  • DOI: 10.1016/j.msea.2017.08.084

Deformation behavior of CP-titanium: Experiment and crystal plasticity modeling
journal, May 2018


Disconnections and other defects associated with twin interfaces
journal, October 2016


Nucleation of paired twins at grain boundaries in titanium
journal, October 2010


Strengthening and toughening of magnesium alloy by {10−12} extension twins
journal, January 2012


Improving tensile and compressive properties of magnesium alloy plates by pre-cold rolling
journal, June 2012


Characteristic dislocation substructure in 10 1 ¯ 2 twins in hexagonal metals
journal, January 2018


Three-dimensional X-ray structural microscopy with submicrometre resolution
journal, February 2002

  • Larson, B. C.; Yang, Wenge; Ice, G. E.
  • Nature, Vol. 415, p. 887-890
  • DOI: 10.1038/415887a

Grain neighbour effects on twin transmission in hexagonal close-packed materials
journal, December 2016

  • Arul Kumar, M.; Beyerlein, I. J.; McCabe, R. J.
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms13826

X-ray microbeam measurements of individual dislocation cell elastic strains in deformed single-crystal copper
journal, July 2006

  • Levine, Lyle E.; Larson, Bennett C.; Yang, Wenge
  • Nature Materials, Vol. 5, Issue 8
  • DOI: 10.1038/nmat1698

The different effects of twin boundary and grain boundary on reducing tension-compression yield asymmetry of Mg alloys
journal, July 2016

  • Yu, Huihui; Xin, Yunchang; Chapuis, Adrien
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep29283

X‐ray Laue Diffraction Microscopy in 3D at the Advanced Photon Source
conference, January 2011

  • Liu, W.; Zschack, P.; Tischler, J.
  • THE 10TH INTERNATIONAL CONFERENCE ON X‐RAY MICROSCOPY, AIP Conference Proceedings
  • DOI: 10.1063/1.3625316

Deformation twinning in h.c.p. metals and alloys
journal, May 1991


Strain hardening due to {10 1 2} twinning in pure magnesium
journal, March 2008


Characterization of the matrix–twin interface of a (101̄2) twin during growth
journal, July 2014


Pure-Shuffle Nucleation of Deformation Twins in Hexagonal-Close-Packed Metals
journal, September 2013


Co-zone {1¯012} Twin Interaction in Magnesium Single Crystal
journal, November 2013


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Local Stress States and Microstructural Damage Response Associated with Deformation Twins in Hexagonal Close Packed Metals
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  • Basu, Indranil; Fidder, Herman; Ocelík, Václav
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  • DOI: 10.3390/cryst8010001

Works referencing / citing this record:

Microscale residual stresses in additively manufactured stainless steel
journal, September 2019


Mechanical Twinning is a Correlated Dynamic Process
journal, April 2019


Mechanical Twinning is a Correlated Dynamic Process
journal, April 2019


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.