skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Role of local stresses on co-zone twin-twin junction formation in HCP magnesium

Abstract

Twin-twin interactions control the formation of twin-twin junctions (TTJ) in hexagonal metals when multiple twin variants are activated in a grain. In this work, we employ a combination of two computational techniques, a 3D full-field crystal plasticity model (CP) and large-scale molecular dynamics (MD), to study the TTJ formation associated with two non-parallel {101¯2} twins in Mg. The local intra-granular stresses generated by discrete twins are computed using a spatially resolved CP model. Atomic-scale knowledge regarding formation processes and local stresses is revealed by MD. The combined analyses suggest that the twin junction forms by the migration of the boundaries of both, the impinging and impinged twin, taking place in the immediate vicinity of the contact point. It is further shown that local stress fields that are generated after initial contact promote thickening of the impinging twin, and may facilitate nucleation of a new twin on the opposite boundary of the recipient twin. In conclusion, calculations of the strain energies suggest that formation of the co-zone twin-twin junction is energetically favorable but detwinning of the TTJ upon load reversal or under cyclic loading is not.

Authors:
ORCiD logo [1];  [2];  [3]; ORCiD logo [4];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Nebraska, Lincoln, NE (United States)
  3. Univ. of California, Santa Barbara, CA (United States)
  4. Univ. of Nebraska, Lincoln, NE (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1498053
Report Number(s):
LA-UR-18-29412
Journal ID: ISSN 1359-6454
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Acta Materialia
Additional Journal Information:
Journal Volume: 168; Journal Issue: C; Journal ID: ISSN 1359-6454
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Twin-twin junction; Local stresses; Crystal plasticity; Molecular dynamics; Magnesium

Citation Formats

Kumar, Mariyappan Arul, Gong, Mingyu, Beyerlein, I. J., Wang, Jian, and Tomé, Carlos N.. Role of local stresses on co-zone twin-twin junction formation in HCP magnesium. United States: N. p., 2019. Web. https://doi.org/10.1016/j.actamat.2019.02.037.
Kumar, Mariyappan Arul, Gong, Mingyu, Beyerlein, I. J., Wang, Jian, & Tomé, Carlos N.. Role of local stresses on co-zone twin-twin junction formation in HCP magnesium. United States. https://doi.org/10.1016/j.actamat.2019.02.037
Kumar, Mariyappan Arul, Gong, Mingyu, Beyerlein, I. J., Wang, Jian, and Tomé, Carlos N.. Tue . "Role of local stresses on co-zone twin-twin junction formation in HCP magnesium". United States. https://doi.org/10.1016/j.actamat.2019.02.037. https://www.osti.gov/servlets/purl/1498053.
@article{osti_1498053,
title = {Role of local stresses on co-zone twin-twin junction formation in HCP magnesium},
author = {Kumar, Mariyappan Arul and Gong, Mingyu and Beyerlein, I. J. and Wang, Jian and Tomé, Carlos N.},
abstractNote = {Twin-twin interactions control the formation of twin-twin junctions (TTJ) in hexagonal metals when multiple twin variants are activated in a grain. In this work, we employ a combination of two computational techniques, a 3D full-field crystal plasticity model (CP) and large-scale molecular dynamics (MD), to study the TTJ formation associated with two non-parallel {101¯2} twins in Mg. The local intra-granular stresses generated by discrete twins are computed using a spatially resolved CP model. Atomic-scale knowledge regarding formation processes and local stresses is revealed by MD. The combined analyses suggest that the twin junction forms by the migration of the boundaries of both, the impinging and impinged twin, taking place in the immediate vicinity of the contact point. It is further shown that local stress fields that are generated after initial contact promote thickening of the impinging twin, and may facilitate nucleation of a new twin on the opposite boundary of the recipient twin. In conclusion, calculations of the strain energies suggest that formation of the co-zone twin-twin junction is energetically favorable but detwinning of the TTJ upon load reversal or under cyclic loading is not.},
doi = {10.1016/j.actamat.2019.02.037},
journal = {Acta Materialia},
number = C,
volume = 168,
place = {United States},
year = {2019},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Prototype systems for rechargeable magnesium batteries
journal, October 2000

  • Aurbach, D.; Lu, Z.; Schechter, A.
  • Nature, Vol. 407, Issue 6805, p. 724-727
  • DOI: 10.1038/35037553

Critical Assessment 6: Magnesium sheet alloys: viable alternatives to steels?
journal, July 2014


Magnesium and its alloys applications in automotive industry
journal, November 2007

  • Kulekci, Mustafa Kemal
  • The International Journal of Advanced Manufacturing Technology, Vol. 39, Issue 9-10
  • DOI: 10.1007/s00170-007-1279-2

Weight Loss with Magnesium Alloys
journal, May 2010


Twinning and the ductility of magnesium alloys
journal, August 2007


Twinning and the ductility of magnesium alloys
journal, August 2007


Slip, twinning, and fracture in hexagonal close-packed metals
journal, March 1981


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


Nucleation and propagation of { 1 0 1 ¯ 2 } twins in AZ31 magnesium alloy
journal, November 2015


Role of microstructure on twin nucleation and growth in HCP titanium: A statistical study
journal, April 2018


Modeling the effect of twinning and detwinning during strain-path changes of magnesium alloy AZ31
journal, May 2009

  • Proust, Gwénaëlle; Tomé, Carlos N.; Jain, Ashutosh
  • International Journal of Plasticity, Vol. 25, Issue 5
  • DOI: 10.1016/j.ijplas.2008.05.005

A measure of plastic anisotropy for hexagonal close packed metals: Application to alloying effects on the formability of Mg
journal, February 2017


Strength and ductility with {10͞11} — {10͞12} double twinning in a magnesium alloy
journal, April 2016

  • Lentz, M.; Risse, M.; Schaefer, N.
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms11068

Twinning-induced dynamic recrystallization in a magnesium alloy extruded at 450°C
journal, November 2011


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


Relationship between fatigue crack initiation and activated twins in as-extruded pure magnesium
journal, November 2013


Fatigue damage development in pure polycrystalline magnesium under cyclic tension–compression loading
journal, September 2011


Influence of grain size on the compressive deformation of wrought Mg–3Al–1Zn
journal, October 2004


In Situ Characterization of Twin Nucleation in Pure Ti Using 3D-XRD
journal, November 2013

  • Bieler, Thomas R.; Wang, Leyun; Beaudoin, Armand J.
  • Metallurgical and Materials Transactions A, Vol. 45, Issue 1
  • DOI: 10.1007/s11661-013-2082-3

Effect of local stress fields on twin characteristics in HCP metals
journal, September 2016


Sequential double extension twinning in a magnesium alloy: Combined statistical and micromechanical analyses
journal, September 2015


Characteristics of long {10-12} twin bands in sheet rolling of a magnesium alloy
journal, March 2014


The effect of twin–twin interactions on the nucleation and propagation of twinning in magnesium
journal, June 2013


Interface structures and twinning mechanisms of twins in hexagonal metals
journal, June 2017


Structural characteristics of { 1 ¯ 012 } non-cozone twin-twin interactions in magnesium
journal, October 2018


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


Toward understanding twin–twin interactions in hcp metals: Utilizing multiscale techniques to characterize deformation mechanisms in magnesium
journal, September 2014


Extension twin variant selection during uniaxial compression of a magnesium alloy
journal, July 2012


Twin–twin interactions in magnesium
journal, September 2014


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


Dislocation mediated variant selection for secondary twinning in compression of pure titanium
journal, February 2017


Observations on the intersection between 101̅2 twin variants sharing the same zone axis in deformed magnesium alloy
journal, November 2015


Effect of twinning on the flow behavior during strain path reversals in two Mg (+Al, Zn, Mn) alloys
journal, May 2008


Influence of {10-12} extension twinning on the flow behavior of AZ31 Mg alloy
journal, February 2007


Modeling the effect of neighboring grains on twin growth in HCP polycrystals
journal, August 2017

  • Kumar, M. Arul; Beyerlein, I. J.; Lebensohn, R. A.
  • Modelling and Simulation in Materials Science and Engineering, Vol. 25, Issue 6
  • DOI: 10.1088/1361-651X/aa7bbb

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

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


Deformation twinning and grain partitioning in a hexagonal close-packed magnesium alloy
journal, November 2018


N-site modeling of a 3D viscoplastic polycrystal using Fast Fourier Transform
journal, August 2001


Elastic anisotropy and yield surface estimates of polycrystals
journal, August 2009


Orientation image-based micromechanical modelling of subgrain texture evolution in polycrystalline copper
journal, September 2008


Dilatational viscoplasticity of polycrystalline solids with intergranular cavities
journal, August 2011


An elasto-viscoplastic formulation based on fast Fourier transforms for the prediction of micromechanical fields in polycrystalline materials
journal, May 2012

  • Lebensohn, Ricardo A.; Kanjarla, Anand K.; Eisenlohr, Philip
  • International Journal of Plasticity, Vol. 32-33
  • DOI: 10.1016/j.ijplas.2011.12.005

A spectral method solution to crystal elasto-viscoplasticity at finite strains
journal, July 2013


Effect of microstructure on the nucleation of deformation twins in polycrystalline high-purity magnesium: A multi-scale modeling study
journal, May 2011

  • Beyerlein, I. J.; McCabe, R. J.; Tomé, C. N.
  • Journal of the Mechanics and Physics of Solids, Vol. 59, Issue 5
  • DOI: 10.1016/j.jmps.2011.02.007

The Elastic Constants of Anisotropic Materials
journal, July 1946


EAM potential for magnesium from quantum mechanical forces
journal, May 1996

  • Liu, Xiang-Yang; Adams, James B.; Ercolessi, Furio
  • Modelling and Simulation in Materials Science and Engineering, Vol. 4, Issue 3
  • DOI: 10.1088/0965-0393/4/3/004

(1¯012) Twinning nucleation mechanisms in hexagonal-close-packed crystals
journal, October 2009


An image force theorem for dislocations in anisotropic bicrystals
journal, October 1974


Deformation twinning
journal, January 1995


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


    Works referencing / citing this record:

    Twin hopping in nanolayered Zr-2.5Nb
    text, January 2020


    Twin hopping in nanolayered Zr-2.5Nb
    journal, April 2020