Dependence of twinned volume fraction on loading mode and Schmid factor in randomly textured magnesium

Capek, Jan; Mathis, Kristian; Clausen, Bjorn; Barnett, Matthew

doi:10.1016/j.actamat.2017.03.017

Title: Dependence of twinned volume fraction on loading mode and Schmid factor in randomly textured magnesium

Abstract

Here, the twinning activity in random textured cast magnesium during room temperature tension and compression tests was monitored by neutron diffraction (ND). Variation of integrated intensities of selected diffraction peaks, characterizing the twinned volume in particularly oriented grains was compared with calculated Schmid factors for extension twinning of these grains. It is shown that in tension there is a direct proportion between the twinned volume and the maximum value of the Schmid factor for a given grain orientation. In contrast, in compression this relation is not valid. The twinned volume in this case is influenced by both deviation of the grain from the ideal orientation and its rotation around the c-axis. The experimental results are in good agreement with those obtained from elasto-plastic self-consistent (EPSC) modeling.

Authors:

Capek, Jan ^[1]; Mathis, Kristian ^[2];

^[3]; Barnett, Matthew ^[4]

Charles Univ., Prague (Czech Republic). Faculty of Mathematics and Physics and Dept. of Physics of Materials; Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic). Nuclear Physics Inst.
Charles Univ., Prague (Czech Republic). Faculty of Mathematics and Physics and Dept. of Physics of Materials
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Deakin Univ., Geelong, VIC (Australia)

Publication Date:: Thu Mar 30 00:00:00 EDT 2017

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); Czech Science Foundation (GACR); European Regional Development Fund (ERDF)

OSTI Identifier:: 1459810

Alternate Identifier(s):: OSTI ID: 1550482

Report Number(s):: LA-UR-16-27103
Journal ID: ISSN 1359-6454

Grant/Contract Number:: AC52-06NA25396; 14-36566G; 251715; CZ.02.1.01/0.0/0.0/15_003/0000485

Resource Type:: Accepted Manuscript

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Volume: 130; Journal Issue: C; Journal ID: ISSN 1359-6454

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Twinning; Magnesium; Neutron diffraction; Schmid factor

Citation Formats


                    Capek, Jan, Mathis, Kristian, Clausen, Bjorn, and Barnett, Matthew. Dependence of twinned volume fraction on loading mode and Schmid factor in randomly textured magnesium.  United States: N. p., 2017. 
Web.  doi:10.1016/j.actamat.2017.03.017.

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                    Capek, Jan, Mathis, Kristian, Clausen, Bjorn, & Barnett, Matthew. Dependence of twinned volume fraction on loading mode and Schmid factor in randomly textured magnesium.  United States.  https://doi.org/10.1016/j.actamat.2017.03.017

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                    Capek, Jan, Mathis, Kristian, Clausen, Bjorn, and Barnett, Matthew. Thu .  
"Dependence of twinned volume fraction on loading mode and Schmid factor in randomly textured magnesium".  United States.  https://doi.org/10.1016/j.actamat.2017.03.017.  https://www.osti.gov/servlets/purl/1459810.

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@article{osti_1459810,

  title        = {Dependence of twinned volume fraction on loading mode and Schmid factor in randomly textured magnesium},

  author       = {Capek, Jan and Mathis, Kristian and Clausen, Bjorn and Barnett, Matthew},

  abstractNote = {Here, the twinning activity in random textured cast magnesium during room temperature tension and compression tests was monitored by neutron diffraction (ND). Variation of integrated intensities of selected diffraction peaks, characterizing the twinned volume in particularly oriented grains was compared with calculated Schmid factors for extension twinning of these grains. It is shown that in tension there is a direct proportion between the twinned volume and the maximum value of the Schmid factor for a given grain orientation. In contrast, in compression this relation is not valid. The twinned volume in this case is influenced by both deviation of the grain from the ideal orientation and its rotation around the c-axis. The experimental results are in good agreement with those obtained from elasto-plastic self-consistent (EPSC) modeling.},

  doi          = {10.1016/j.actamat.2017.03.017},

  journal      = {Acta Materialia},

  number       = C,

  volume       = 130,

  place        = {United States},

  year         = {Thu Mar 30 00:00:00 EDT 2017},

  month        = {Thu Mar 30 00:00:00 EDT 2017}

}

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Works referenced in this record:

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Chapuis, Adrien; Driver, Julian H.
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Investigation of deformation twinning in a fine-grained and coarse-grained ZM20 Mg alloy: Combined in situ neutron diffraction and acoustic emission
journal, March 2010

Muránsky, O.; Barnett, M. R.; Carr, D. G.
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Study of the loading mode dependence of the twinning in random textured cast magnesium by acoustic emission and neutron diffraction methods
journal, April 2014

Čapek, Jan; Máthis, Kristián; Clausen, Bjørn
Materials Science and Engineering: A, Vol. 602
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Validating a polycrystal model for the elastoplastic response of magnesium alloy AZ31 using in situ neutron diffraction
journal, October 2006

Agnew, S.; Brown, D.; Tome, C.
Acta Materialia, Vol. 54, Issue 18
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In situ neutron diffraction investigation of deformation twinning and pseudoelastic-like behaviour of extruded AZ31 magnesium alloy
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Investigation of the dependence of deformation mechanisms on solute content in polycrystalline Mg–Al magnesium alloys by neutron diffraction and acoustic emission
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Máthis, K.; Čapek, J.; Clausen, B.
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journal, March 2012

Oppedal, A. L.; El Kadiri, H.; Tomé, C. N.
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Siska, Filip; Stratil, Ludek; Cizek, Jan
Acta Materialia, Vol. 124
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Plastic relaxation of the internal stress induced by twinning
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Works referencing / citing this record:

Evolución microestructural y envejecimiento dinámico por deformación en la aleación Mg-6%Gd- 1%Zn durante ensayos a tracción y compresión a temperaturas intermedias
journal, August 2018

Garcés, Gerardo; Pérez, Pablo; Barea, Rafael
Revista de Metalurgia, Vol. 54, Issue 3
DOI: 10.3989/revmetalm.124

Influence of the initial state on the microstructure and mechanical properties of AX41 alloy processed by ECAP
journal, October 2018

Krajňák, Tomáš; Minárik, Peter; Stráská, Jitka
Journal of Materials Science, Vol. 54, Issue 4
DOI: 10.1007/s10853-018-3033-6

Investigation of the Microstructure Evolution and Deformation Mechanisms of a Mg-Zn-Zr-RE Twin-Roll-Cast Magnesium Sheet by In-Situ Experimental Techniques
journal, January 2018

Máthis, Kristián; Horváth, Klaudia; Farkas, Gergely
Materials, Vol. 11, Issue 2
DOI: 10.3390/ma11020200

Effect of Ce Addition on Modifying the Microstructure and Achieving a High Elongation with a Relatively High Strength of As-Extruded AZ80 Magnesium Alloy
journal, December 2018

Wang, Zheng; Wang, Jin-Guo; Chen, Ze-Yu
Materials, Vol. 12, Issue 1
DOI: 10.3390/ma12010076

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Similar Records

Title: Dependence of twinned volume fraction on loading mode and Schmid factor in randomly textured magnesium

Abstract

Citation Formats

Temperature dependency of slip and twinning in plane strain compressed magnesium single crystals journal, March 2011

Deformation twinning journal, January 1995

Non-Schmid behaviour during secondary twinning in a polycrystalline magnesium alloy journal, January 2008

Statistical analyses of deformation twinning in magnesium journal, May 2010

Calculation of Schmid factors in magnesium: Analysis of deformation behaviors journal, September 2012

Understanding of variant selection and twin patterns in compressed Mg alloy sheets via combined analysis of Schmid factor and strain compatibility factor journal, July 2014

{10-12} Twin variants selection mechanisms during twinning, re-twinning and detwinning journal, August 2014

In situ observation of collective grain-scale mechanics in Mg and Mg–rare earth alloys journal, November 2014

On the role of anomalous twinning in the plasticity of magnesium journal, January 2016

Study of the mechanical properties of Mg-7.7at.% Al by in-situ neutron diffraction journal, July 1999

Investigation of deformation twinning in a fine-grained and coarse-grained ZM20 Mg alloy: Combined in situ neutron diffraction and acoustic emission journal, March 2010

Study of the loading mode dependence of the twinning in random textured cast magnesium by acoustic emission and neutron diffraction methods journal, April 2014

Validating a polycrystal model for the elastoplastic response of magnesium alloy AZ31 using in situ neutron diffraction journal, October 2006

In situ neutron diffraction investigation of deformation twinning and pseudoelastic-like behaviour of extruded AZ31 magnesium alloy journal, June 2009

Investigation of the dependence of deformation mechanisms on solute content in polycrystalline Mg–Al magnesium alloys by neutron diffraction and acoustic emission journal, September 2015

SMARTS - a spectrometer for strain measurement in engineering materials journal, December 2002

Reorientation and stress relaxation due to twinning: Modeling and experimental characterization for Mg journal, June 2008

Effect of dislocation transmutation on modeling hardening mechanisms by twinning in magnesium journal, March 2012

Numerical analysis of twin thickening process in magnesium alloys journal, February 2017

Plastic relaxation of the internal stress induced by twinning journal, December 2013

Flow asymmetry and nucleation stresses of twinning and non-basal slip in magnesium journal, May 2013

Evolución microestructural y envejecimiento dinámico por deformación en la aleación Mg-6%Gd- 1%Zn durante ensayos a tracción y compresión a temperaturas intermedias journal, August 2018

Influence of the initial state on the microstructure and mechanical properties of AX41 alloy processed by ECAP journal, October 2018

Investigation of the Microstructure Evolution and Deformation Mechanisms of a Mg-Zn-Zr-RE Twin-Roll-Cast Magnesium Sheet by In-Situ Experimental Techniques journal, January 2018

Effect of Ce Addition on Modifying the Microstructure and Achieving a High Elongation with a Relatively High Strength of As-Extruded AZ80 Magnesium Alloy journal, December 2018

Temperature dependency of slip and twinning in plane strain compressed magnesium single crystals
journal, March 2011

Deformation twinning
journal, January 1995

Non-Schmid behaviour during secondary twinning in a polycrystalline magnesium alloy
journal, January 2008

Statistical analyses of deformation twinning in magnesium
journal, May 2010

Calculation of Schmid factors in magnesium: Analysis of deformation behaviors
journal, September 2012

Understanding of variant selection and twin patterns in compressed Mg alloy sheets via combined analysis of Schmid factor and strain compatibility factor
journal, July 2014

{10-12} Twin variants selection mechanisms during twinning, re-twinning and detwinning
journal, August 2014

In situ observation of collective grain-scale mechanics in Mg and Mg–rare earth alloys
journal, November 2014

On the role of anomalous twinning in the plasticity of magnesium
journal, January 2016

Study of the mechanical properties of Mg-7.7at.% Al by in-situ neutron diffraction
journal, July 1999

Investigation of deformation twinning in a fine-grained and coarse-grained ZM20 Mg alloy: Combined in situ neutron diffraction and acoustic emission
journal, March 2010

Study of the loading mode dependence of the twinning in random textured cast magnesium by acoustic emission and neutron diffraction methods
journal, April 2014

Validating a polycrystal model for the elastoplastic response of magnesium alloy AZ31 using in situ neutron diffraction
journal, October 2006

In situ neutron diffraction investigation of deformation twinning and pseudoelastic-like behaviour of extruded AZ31 magnesium alloy
journal, June 2009

Investigation of the dependence of deformation mechanisms on solute content in polycrystalline Mg–Al magnesium alloys by neutron diffraction and acoustic emission
journal, September 2015

SMARTS - a spectrometer for strain measurement in engineering materials
journal, December 2002

Reorientation and stress relaxation due to twinning: Modeling and experimental characterization for Mg
journal, June 2008

Effect of dislocation transmutation on modeling hardening mechanisms by twinning in magnesium
journal, March 2012

Numerical analysis of twin thickening process in magnesium alloys
journal, February 2017

Plastic relaxation of the internal stress induced by twinning
journal, December 2013

Flow asymmetry and nucleation stresses of twinning and non-basal slip in magnesium
journal, May 2013

Evolución microestructural y envejecimiento dinámico por deformación en la aleación Mg-6%Gd- 1%Zn durante ensayos a tracción y compresión a temperaturas intermedias
journal, August 2018

Influence of the initial state on the microstructure and mechanical properties of AX41 alloy processed by ECAP
journal, October 2018

Investigation of the Microstructure Evolution and Deformation Mechanisms of a Mg-Zn-Zr-RE Twin-Roll-Cast Magnesium Sheet by In-Situ Experimental Techniques
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Effect of Ce Addition on Modifying the Microstructure and Achieving a High Elongation with a Relatively High Strength of As-Extruded AZ80 Magnesium Alloy
journal, December 2018