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Title: Quantifying heterogeneous deformation in grain boundary regions on shock loaded tantalum using spherical and sharp tip nanoindentation

Abstract

Grain boundaries play an important role in the overall mechanical performance of metals and alloys; however, isolating the effects of individual grain boundaries remains rather challenging experimentally. In this work, wire-feed, electron beam additively manufactured tantalum is studied under shock loading conditions generating incipient spall damage. Three grain boundaries aligned parallel to the shock direction were isolated inside a single sample. Postmortem metallography showed voids preferentially appeared on two of the three grain boundaries which had high misorientation angles > 30° compared to the third grain boundary with a relatively lower misorientation angle < 10°. Nanoindentation in grain boundary regions for both pyramidal and spherical tips showed characteristically different strain hardening trends for each grain boundary. Significant local strain hardening is present on both sides of one high angle grain boundary, while strain softening is captured at the other high angle grain boundary. A negligible trend of either hardening or softening is shown in the vicinity of the single low angle grain boundary. As a result, this leads to the conclusion that the trend of strain hardening/softening in grain boundary regions is not monotonically correlated to the susceptibility of specific grain boundaries to an increased propensity for void damage.

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [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 Minnesota-Twin Cities, Minneapolis, MN (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1477707
Alternate Identifier(s):
OSTI ID: 1636607
Report Number(s):
LA-UR-18-29241
Journal ID: ISSN 0921-5093
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Additional Journal Information:
Journal Volume: 737; Journal Issue: C; Journal ID: ISSN 0921-5093
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Spall; Hardness; Dynamic deformation; Grains and interfaces; Stress/strain measurements; Electron microscopy

Citation Formats

Weaver, Jordan S., Jones, David Robert, Li, Nan, Mara, Nathan, Fensin, Saryu Jindal, and Gray, III, George Thompson. Quantifying heterogeneous deformation in grain boundary regions on shock loaded tantalum using spherical and sharp tip nanoindentation. United States: N. p., 2018. Web. https://doi.org/10.1016/j.msea.2018.09.075.
Weaver, Jordan S., Jones, David Robert, Li, Nan, Mara, Nathan, Fensin, Saryu Jindal, & Gray, III, George Thompson. Quantifying heterogeneous deformation in grain boundary regions on shock loaded tantalum using spherical and sharp tip nanoindentation. United States. https://doi.org/10.1016/j.msea.2018.09.075
Weaver, Jordan S., Jones, David Robert, Li, Nan, Mara, Nathan, Fensin, Saryu Jindal, and Gray, III, George Thompson. Fri . "Quantifying heterogeneous deformation in grain boundary regions on shock loaded tantalum using spherical and sharp tip nanoindentation". United States. https://doi.org/10.1016/j.msea.2018.09.075. https://www.osti.gov/servlets/purl/1477707.
@article{osti_1477707,
title = {Quantifying heterogeneous deformation in grain boundary regions on shock loaded tantalum using spherical and sharp tip nanoindentation},
author = {Weaver, Jordan S. and Jones, David Robert and Li, Nan and Mara, Nathan and Fensin, Saryu Jindal and Gray, III, George Thompson},
abstractNote = {Grain boundaries play an important role in the overall mechanical performance of metals and alloys; however, isolating the effects of individual grain boundaries remains rather challenging experimentally. In this work, wire-feed, electron beam additively manufactured tantalum is studied under shock loading conditions generating incipient spall damage. Three grain boundaries aligned parallel to the shock direction were isolated inside a single sample. Postmortem metallography showed voids preferentially appeared on two of the three grain boundaries which had high misorientation angles > 30° compared to the third grain boundary with a relatively lower misorientation angle < 10°. Nanoindentation in grain boundary regions for both pyramidal and spherical tips showed characteristically different strain hardening trends for each grain boundary. Significant local strain hardening is present on both sides of one high angle grain boundary, while strain softening is captured at the other high angle grain boundary. A negligible trend of either hardening or softening is shown in the vicinity of the single low angle grain boundary. As a result, this leads to the conclusion that the trend of strain hardening/softening in grain boundary regions is not monotonically correlated to the susceptibility of specific grain boundaries to an increased propensity for void damage.},
doi = {10.1016/j.msea.2018.09.075},
journal = {Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing},
number = C,
volume = 737,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:

Citation Metrics:
Cited by: 1 work
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Figures / Tables:

Fig. 1 Fig. 1: (a) schematic of shock loaded sample showing the cross-sectioned plane, shock-loaded axis, and nanoindentation axis. (b) standard stereographic triangle inverse pole figure (IPF) color key. (c) EBSD-IPF overlaid with image quality of the cross-sectioned plane. The crystallographic planes correspond to the indentation axis. The three grain boundaries aremore » labeled: GB1, GB2, and GB3. Dark, spherical regions are low image quality corresponding to voids. (d) The same EBSD-IPF map colored according to the crystallographic planes that lie along the shock loading direction.« less

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Works referenced in this record:

Why are some Interfaces in Materials Stronger than others?
journal, June 2014

  • Fensin, S. J.; Cerreta, E. K.; Iii, G. T. Gray
  • Scientific Reports, Vol. 4, Issue 1
  • DOI: 10.1038/srep05461

Effect of loading direction on grain boundary failure under shock loading
journal, February 2014


Influence of grain boundary properties on spall strength: Grain boundary energy and excess volume
journal, October 2012

  • Fensin, S. J.; Valone, S. M.; Cerreta, E. K.
  • Journal of Applied Physics, Vol. 112, Issue 8
  • DOI: 10.1063/1.4761816

Effect of Crystalline Structure on Intergranular Failure During Shock Loading
journal, November 2013


Influence of boundary structure and near neighbor crystallographic orientation on the dynamic damage evolution during shock loading
journal, March 2013


Early stage dynamic damage and the role of grain boundary type
journal, May 2012


Effects of grain size and boundary structure on the dynamic tensile response of copper
journal, August 2011

  • Escobedo, J. P.; Dennis-Koller, D.; Cerreta, E. K.
  • Journal of Applied Physics, Vol. 110, Issue 3
  • DOI: 10.1063/1.3607294

Microstructural effects on damage evolution in shocked copper polycrystals
journal, September 2016


Influence of peak pressure and temperature on the structure/property response of shock- loaded Ta and Ta-10W
journal, October 1995

  • Gray, George T.; Vecchio, Kenneth S.
  • Metallurgical and Materials Transactions A, Vol. 26, Issue 10
  • DOI: 10.1007/BF02669413

Mechanical characterization of grain boundaries using nanoindentation
journal, August 2014

  • Kalidindi, Surya R.; Vachhani, Shraddha J.
  • Current Opinion in Solid State and Materials Science, Vol. 18, Issue 4
  • DOI: 10.1016/j.cossms.2014.05.002

Quantifying deformation processes near grain boundaries in α titanium using nanoindentation and crystal plasticity modeling
journal, November 2016


Incipient plasticity during nanoindentation at grain boundaries in body-centered cubic metals
journal, October 2005


Investigation of slip transmission behavior across grain boundaries in polycrystalline Ni 3 Al using nanoindentation
journal, January 2004


Nanoindentation-Induced Deformation Behavior in the Vicinity of Single Grain Boundary of Interstitial-Free Steel
journal, January 2005


Nanohardness of molybdenum in the vicinity of grain boundaries and triple junctions
journal, November 2008


Nanoindentation study of slip transfer phenomenon at grain boundaries
journal, March 2009

  • Britton, T. B.; Randman, D.; Wilkinson, A. J.
  • Journal of Materials Research, Vol. 24, Issue 3
  • DOI: 10.1557/jmr.2009.0088

Nanohardness of copper in the vicinity of grain boundaries
journal, December 2002


Studies of grain boundary regions in deformed polycrystalline aluminum using spherical nanoindentation
journal, June 2016

  • Vachhani, Shraddha J.; Doherty, Roger D.; Kalidindi, Surya R.
  • International Journal of Plasticity, Vol. 81
  • DOI: 10.1016/j.ijplas.2016.01.001

Studying grain boundary regions in polycrystalline materials using spherical nano-indentation and orientation imaging microscopy
journal, August 2011

  • Pathak, Siddhartha; Michler, Johann; Wasmer, Kilian
  • Journal of Materials Science, Vol. 47, Issue 2
  • DOI: 10.1007/s10853-011-5859-z

Metal Additive Manufacturing: A Review
journal, April 2014


An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
journal, June 1992

  • Oliver, W. C.; Pharr, G. M.
  • Journal of Materials Research, Vol. 7, Issue 06, p. 1564-1583
  • DOI: 10.1557/JMR.1992.1564

Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology
journal, January 2004


Determination of the effective zero-point and the extraction of spherical nanoindentation stress–strain curves
journal, August 2008


Spherical nanoindentation stress–strain curves
journal, May 2015


Measuring the elastic properties of anisotropic materials by means of indentation experiments
journal, August 1994


Indentation modulus of elastically anisotropic half spaces
journal, May 1993


The correlation of the indentation size effect measured with indenters of various shapes
journal, April 2002

  • Swadener, J. G.; George, E. P.; Pharr, G. M.
  • Journal of the Mechanics and Physics of Solids, Vol. 50, Issue 4
  • DOI: 10.1016/S0022-5096(01)00103-X

Indentation size effects in crystalline materials: A law for strain gradient plasticity
journal, March 1998


Understanding pop-ins in spherical nanoindentation
journal, October 2014

  • Pathak, Siddhartha; Riesterer, Jessica L.; Kalidindi, Surya R.
  • Applied Physics Letters, Vol. 105, Issue 16
  • DOI: 10.1063/1.4898698

A different type of indentation size effect
journal, November 2008


A stochastic model for the size dependence of spherical indentation pop-in
journal, September 2013

  • Sudharshan Phani, P.; Johanns, Kurt E.; George, Easo P.
  • Journal of Materials Research, Vol. 28, Issue 19
  • DOI: 10.1557/jmr.2013.254

Grain-scale measurement of slip resistances in aluminum polycrystals using spherical nanoindentation
journal, May 2015


Importance of surface preparation on the nano-indentation stress-strain curves measured in metals
journal, March 2009

  • Pathak, Siddhartha; Stojakovic, Dejan; Doherty, Roger
  • Journal of Materials Research, Vol. 24, Issue 3
  • DOI: 10.1557/jmr.2009.0137

Measurement of the local mechanical properties in polycrystalline samples using spherical nanoindentation and orientation imaging microscopy
journal, June 2009


Local Mechanical Property Evolution During High Strain-Rate Deformation of Tantalum
journal, November 2016

  • Vachhani, Shraddha J.; Trujillo, Carl; Mara, Nathan
  • Journal of Dynamic Behavior of Materials, Vol. 2, Issue 4
  • DOI: 10.1007/s40870-016-0085-z

The Indentation Size Effect: A Critical Examination of Experimental Observations and Mechanistic Interpretations
journal, June 2010


Study of the interaction between the indentation size effect and Hall–Petch effect with spherical indenters on annealed polycrystalline copper
journal, March 2008


On capturing the grain-scale elastic and plastic anisotropy of alpha-Ti with spherical nanoindentation and electron back-scattered diffraction
journal, September 2016


The structure of high-angle grain boundaries
journal, November 1966


Grain-boundaries: Criteria of specialness and deviation from CSL misorientation
journal, January 1987


A Review of Strain Analysis Using Electron Backscatter Diffraction
journal, March 2011

  • Wright, Stuart I.; Nowell, Matthew M.; Field, David P.
  • Microscopy and Microanalysis, Vol. 17, Issue 3
  • DOI: 10.1017/S1431927611000055

Spherical nanoindentation of proton irradiated 304 stainless steel: A comparison of small scale mechanical test techniques for measuring irradiation hardening
journal, September 2017


Micromechanics of spall and damage in tantalum
journal, June 1996

  • Zurek, A. K.; Thissell, W. R.; Johnson, J. N.
  • Journal of Materials Processing Technology, Vol. 60, Issue 1-4
  • DOI: 10.1016/0924-0136(96)02340-0

Grain boundaries and interfaces in slip transfer
journal, August 2014

  • Bieler, T. R.; Eisenlohr, P.; Zhang, C.
  • Current Opinion in Solid State and Materials Science, Vol. 18, Issue 4
  • DOI: 10.1016/j.cossms.2014.05.003

Grain Boundary Motion under Dynamic Loading: Mechanism and Large-Scale Molecular Dynamics Simulations
journal, September 2013

  • Brandl, Christian; Germann, Timothy C.; Perez-Bergquist, Alejandro G.
  • Materials Research Letters, Vol. 1, Issue 4
  • DOI: 10.1080/21663831.2013.830993

Shear-coupled grain-boundary migration dependence on normal strain/stress
journal, August 2017


    Works referencing / citing this record:

    A comparison of adiabatic shear bands in wrought and additively manufactured 316L stainless steel using nanoindentation and electron backscatter diffraction
    journal, September 2019

    • Weaver, Jordan S.; Livescu, Veronica; Mara, Nathan A.
    • Journal of Materials Science, Vol. 55, Issue 4
    • DOI: 10.1007/s10853-019-03994-8

    Understanding and predicting damage and failure at grain boundaries in BCC Ta
    journal, October 2019

    • Chen, J.; Hahn, E. N.; Dongare, A. M.
    • Journal of Applied Physics, Vol. 126, Issue 16
    • DOI: 10.1063/1.5111837

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