Characterization and modeling of mechanical behavior of single crystal titanium deformed by split-Hopkinson pressure bar

Morrow, B. M.; Lebensohn, R. A.; Trujillo, C. P.; Martinez, D. T.; Addessio, F. L.; Bronkhorst, C. A.; Lookman, T.; Cerreta, E. K.

doi:10.1016/j.ijplas.2016.03.006

Title: Characterization and modeling of mechanical behavior of single crystal titanium deformed by split-Hopkinson pressure bar

Abstract

Single crystal titanium samples were dynamically loaded using split-Hopkinson pressure bar (SHPB) and the resulting microstructures were examined. Characterization of the twins and dislocations present in the microstructure was conducted to understand the pathway for observed mechanical behavior. Electron backscatter diffraction (EBSD) was used to measure textures and quantify twinning. Microstructures were profusely twinned after loading, and twin variants and corresponding textures were different as a function of initial orientation. Focused ion beam (FIB) foils were created to analyze dislocation content using transmission electron microscopy (TEM). Large amounts of dislocations were present, indicating that plasticity was achieved through slip and twinning together. Viscoplastic self-consistent (VPSC) modeling was used to confirm the complex order of operations during deformation. The activation of different mechanisms was highly dependent upon crystal orientation. For [0001] and View the MathML source[101¯1]-oriented crystals, compressive twinning was observed, followed by secondary tensile twinning. Furthermore, dislocations though prevalent in the microstructure, contributed to final texture far less than twinning.

Authors:

^[1]; Lebensohn, R. A. ^[1]; Trujillo, C. P. ^[1]; Martinez, D. T. ^[1]; Addessio, F. L. ^[1]; Bronkhorst, C. A. ^[1]; Lookman, T. ^[1]; Cerreta, E. K. ^[1]

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

Publication Date:: Mon Mar 28 00:00:00 EDT 2016

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1258282

Alternate Identifier(s):: OSTI ID: 1425694

Report Number(s):: LA-UR-15-26741
Journal ID: ISSN 0749-6419

Grant/Contract Number:: AC52-06NA25396

Resource Type:: Accepted Manuscript

Journal Name:: International Journal of Plasticity

Additional Journal Information:: Journal Volume: 82; Journal Issue: C; Journal ID: ISSN 0749-6419

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; split-Hopkinson pressure bar (SHPB), titanium, twinning, dynamic properties

Citation Formats


                    Morrow, B. M., Lebensohn, R. A., Trujillo, C. P., Martinez, D. T., Addessio, F. L., Bronkhorst, C. A., Lookman, T., and Cerreta, E. K. Characterization and modeling of mechanical behavior of single crystal titanium deformed by split-Hopkinson pressure bar.  United States: N. p., 2016. 
Web.  doi:10.1016/j.ijplas.2016.03.006.

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                    Morrow, B. M., Lebensohn, R. A., Trujillo, C. P., Martinez, D. T., Addessio, F. L., Bronkhorst, C. A., Lookman, T., & Cerreta, E. K. Characterization and modeling of mechanical behavior of single crystal titanium deformed by split-Hopkinson pressure bar.  United States.  https://doi.org/10.1016/j.ijplas.2016.03.006

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                    Morrow, B. M., Lebensohn, R. A., Trujillo, C. P., Martinez, D. T., Addessio, F. L., Bronkhorst, C. A., Lookman, T., and Cerreta, E. K. Mon .  
"Characterization and modeling of mechanical behavior of single crystal titanium deformed by split-Hopkinson pressure bar".  United States.  https://doi.org/10.1016/j.ijplas.2016.03.006.  https://www.osti.gov/servlets/purl/1258282.

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@article{osti_1258282,

  title        = {Characterization and modeling of mechanical behavior of single crystal titanium deformed by split-Hopkinson pressure bar},

  author       = {Morrow, B. M. and Lebensohn, R. A. and Trujillo, C. P. and Martinez, D. T. and Addessio, F. L. and Bronkhorst, C. A. and Lookman, T. and Cerreta, E. K.},

  abstractNote = {Single crystal titanium samples were dynamically loaded using split-Hopkinson pressure bar (SHPB) and the resulting microstructures were examined. Characterization of the twins and dislocations present in the microstructure was conducted to understand the pathway for observed mechanical behavior. Electron backscatter diffraction (EBSD) was used to measure textures and quantify twinning. Microstructures were profusely twinned after loading, and twin variants and corresponding textures were different as a function of initial orientation. Focused ion beam (FIB) foils were created to analyze dislocation content using transmission electron microscopy (TEM). Large amounts of dislocations were present, indicating that plasticity was achieved through slip and twinning together. Viscoplastic self-consistent (VPSC) modeling was used to confirm the complex order of operations during deformation. The activation of different mechanisms was highly dependent upon crystal orientation. For [0001] and View the MathML source[101¯1]-oriented crystals, compressive twinning was observed, followed by secondary tensile twinning. Furthermore, dislocations though prevalent in the microstructure, contributed to final texture far less than twinning.},

  doi          = {10.1016/j.ijplas.2016.03.006},

  journal      = {International Journal of Plasticity},

  number       = C,

  volume       = 82,

  place        = {United States},

  year         = {Mon Mar 28 00:00:00 EDT 2016},

  month        = {Mon Mar 28 00:00:00 EDT 2016}

}

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https://doi.org/10.1016/j.ijplas.2016.03.006

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Crystallographic characters of {11¯22} twin-twin junctions in titanium
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Title: Characterization and modeling of mechanical behavior of single crystal titanium deformed by split-Hopkinson pressure bar

Abstract

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Application of texture simulation to understanding mechanical behavior of Mg and solid solution alloys containing Li or Y journal, December 2001

Orientation Effect on Mechanical Properties of Commercially Pure Titanium at Room Temperature journal, February 2007

A dislocation-based constitutive law for pure Zr including temperature effects journal, May 2008

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Modeling bending of α-titanium with embedded polycrystal plasticity in implicit finite elements
journal, March 2013

Modeling mechanical response and texture evolution of α-uranium as a function of strain rate and temperature using polycrystal plasticity
journal, April 2013

An Investigation of the Mechanical Properties of Materials at very High Rates of Loading
journal, November 1949

A self-consistent approach for modelling texture development of two-phase polycrystals: Application to titanium alloys
journal, September 1997

A self-consistent anisotropic approach for the simulation of plastic deformation and texture development of polycrystals: Application to zirconium alloys
journal, September 1993

Self-consistent modelling of the mechanical behaviour of viscoplastic polycrystals incorporating intragranular field fluctuations
journal, August 2007

Dynamic mechanical behavior of pure titanium
journal, November 2004

Hardening evolution of AZ31B Mg sheet
journal, January 2007

Quantitative analysis of deformation twinning in zirconium
journal, March 2009

Constitutive description of dynamic deformation: physically-based mechanisms
journal, January 2002

Evolution of microstructure and shear-band formation in α-hcp titanium
journal, March 1994

The onset of twinning in metals: a constitutive description
journal, November 2001

High-temperature creep behavior and microstructure analysis of binary Ti–6Al alloys with trace amounts of Ni
journal, June 2009

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

Transmission Electron Microscope In Situ Straining Technique to Directly Observe Defects and Interfaces During Deformation in Magnesium
journal, May 2015

An examination of the use of the Modified Jogged-Screw model for predicting creep behavior in Zircaloy-4
journal, July 2013

Variability in EBSD statistics for textured zirconium
journal, July 2013

In-Situ TEM Observation of Twinning and Detwinning During Cyclic Loading in Mg
journal, April 2013

Observations of the Atomic Structure of Tensile and Compressive Twin Boundaries and Twin–Twin Interactions in Zirconium
journal, August 2014

Mechanical properties and deformation mechanisms of a commercially pure titanium
journal, October 1999

Stochastic modeling of twin nucleation in polycrystals: An application in hexagonal close-packed metals
journal, May 2014

Anisotropic response of high-purity α-titanium: Experimental characterization and constitutive modeling
journal, April 2010

The crystallography and deformation modes of hexagonal close-packed metals
journal, January 1967

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

Effects of high rates of loading on the deformation behavior and failure mechanisms of hexagonal close-packed metals and alloys
journal, March 2002

Strain hardening of titanium: role of deformation twinning
journal, August 2003

Shear banding in commercial pure titanium deformed by dynamic compression
journal, October 2014

The relation between macroscopic and microscopic strain hardening in F.C.C. polycrystals
journal, October 1984

A model for texture development dominated by deformation twinning: Application to zirconium alloys
journal, November 1991

Mechanical response of zirconium—I. Derivation of a polycrystal constitutive law and finite element analysis
journal, September 2001

The use of X-ray diffraction to determine slip and twinning activity in commercial-purity (CP) titanium
journal, October 2008

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

Effect of twinning on microstructure and texture evolutions of pure Ti during dynamic plastic deformation
journal, March 2013

deformation twinning in pure Ti during dynamic plastic deformation
journal, April 2012

The effects of deformation conditions on microstructure and texture of commercially pure Ti
journal, November 2009

Crystallographic characters of {11¯22} twin-twin junctions in titanium
journal, November 2017