Probing elastically or plastically induced structural heterogeneities in bulk metallic glasses by nanoindentation pop-in tests

Liu, Tingkun; Gao, Yanfei; Bei, Hongbin

doi:10.1063/1.4993719

Title: Probing elastically or plastically induced structural heterogeneities in bulk metallic glasses by nanoindentation pop-in tests

Abstract

Shear banding dynamics in bulk metallic glasses (BMGs) is manifested by the spatiotemporal evolution of strain fields which in turn depend on structural heterogeneities. The spacing of these heterogeneities, as a characteristic length scale, was determined from the analysis of nanoindentation pop-in tests using a stochastic model. Furthermore, the pre-stress by elastic bending and residual stress by plastic bending of BMG plates were found to dramatically decrease such spacings, thus increasing heterogeneity density and mechanically rejuvenating the glass structure.

Authors:

Liu, Tingkun ^[1]; Gao, Yanfei ^[2];

^[3]

Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Div.
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Div.

Publication Date:: Fri Jul 21 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1376437

Alternate Identifier(s):: OSTI ID: 1375664

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: AIP Advances

Additional Journal Information:: Journal Volume: 7; Journal Issue: 8; Journal ID: ISSN 2158-3226

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Liu, Tingkun, Gao, Yanfei, and Bei, Hongbin. Probing elastically or plastically induced structural heterogeneities in bulk metallic glasses by nanoindentation pop-in tests.  United States: N. p., 2017. 
Web.  doi:10.1063/1.4993719.

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                    Liu, Tingkun, Gao, Yanfei, & Bei, Hongbin. Probing elastically or plastically induced structural heterogeneities in bulk metallic glasses by nanoindentation pop-in tests.  United States.  https://doi.org/10.1063/1.4993719

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                    Liu, Tingkun, Gao, Yanfei, and Bei, Hongbin. Fri .  
"Probing elastically or plastically induced structural heterogeneities in bulk metallic glasses by nanoindentation pop-in tests".  United States.  https://doi.org/10.1063/1.4993719.  https://www.osti.gov/servlets/purl/1376437.

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@article{osti_1376437,

  title        = {Probing elastically or plastically induced structural heterogeneities in bulk metallic glasses by nanoindentation pop-in tests},

  author       = {Liu, Tingkun and Gao, Yanfei and Bei, Hongbin},

  abstractNote = {Shear banding dynamics in bulk metallic glasses (BMGs) is manifested by the spatiotemporal evolution of strain fields which in turn depend on structural heterogeneities. The spacing of these heterogeneities, as a characteristic length scale, was determined from the analysis of nanoindentation pop-in tests using a stochastic model. Furthermore, the pre-stress by elastic bending and residual stress by plastic bending of BMG plates were found to dramatically decrease such spacings, thus increasing heterogeneity density and mechanically rejuvenating the glass structure.},

  doi          = {10.1063/1.4993719},

  journal      = {AIP Advances},

  number       = 8,

  volume       = 7,

  place        = {United States},

  year         = {Fri Jul 21 00:00:00 EDT 2017},

  month        = {Fri Jul 21 00:00:00 EDT 2017}

}

Copy to clipboard

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Title: Probing elastically or plastically induced structural heterogeneities in bulk metallic glasses by nanoindentation pop-in tests

Abstract

Citation Formats

Correlation between local elastic heterogeneities and overall elastic properties in metallic glasses journal, December 2016

Tuning order in disorder journal, May 2015

Embrittlement of a bulk metallic glass due to low-temperature annealing journal, July 2002

Radial distribution function and structural relaxation in amorphous solids journal, December 1981

Direct synchrotron x-ray measurements of local strain fields in elastically and plastically bent metallic glasses journal, December 2015

On the correlation between microscopic structural heterogeneity and embrittlement behavior in metallic glasses journal, October 2015

The thermal history effect on shear band initiation in metallic glass journal, June 2016

Embrittlement of a bulk metallic glass due to sub- annealing journal, March 2005

Deformation-induced spatiotemporal fluctuation, evolution and localization of strain fields in a bulk metallic glass journal, August 2015

Reflections from the glass maze journal, December 2010

Scale effects in convoluted thermal/spatial statistics of plasticity initiation in small stressed volumes during nanoindentation journal, October 2012

The role of configurational disorder on plastic and dynamic deformation in Cu64Zr36 metallic glasses: A molecular dynamics analysis journal, January 2017

Density changes in shear bands of a metallic glass determined by correlative analytical transmission electron microscopy journal, July 2014

Microstructural heterogeneity perspective on the yield strength of metallic glasses journal, February 2016

Structural heterogeneity induced plasticity in bulk metallic glasses: From well-relaxed fragile glass to metal-like behavior journal, October 2013

Structural rejuvenation in bulk metallic glasses journal, March 2015

Strength statistics of single crystals and metallic glasses under small stressed volumes journal, September 2016

Stress-dependent shear transformation zone in Ni Nb thin film metallic glass and its correlation with deformation mode transition journal, September 2016

Stress-induced structural transformation and shear banding during simulated nanoindentation of a metallic glass journal, August 2007

How thermally activated deformation starts in metallic glass journal, September 2014

Local elastic properties of a metallic glass journal, May 2011

Structural processes that initiate shear localization in metallic glass journal, October 2009

Rejuvenation decreases shear band sliding velocity in Pt-based metallic glasses journal, January 2017

Mechanical behavior of amorphous alloys journal, July 2007

Specimen Size Effects on Zr-Based Bulk Metallic Glasses Investigated by Uniaxial Compression and Spherical Nanoindentation journal, September 2009

Test environments and mechanical properties of Zr-base bulk amorphous alloys journal, July 1998

Origin of embrittlement in metallic glasses journal, August 2016

Experimental characterization of shear transformation zones for plastic flow of bulk metallic glasses journal, September 2008

A microscopic mechanism for steady state inhomogeneous flow in metallic glasses journal, April 1977

Universal structural parameter to quantitatively predict metallic glass properties journal, December 2016

Plastic deformation in metallic glasses journal, January 1979

Effects of flow defects on hypothetical ZrCu metallic glasses microstructure and plasticity: A molecular dynamics analysis journal, January 2016

Tailoring structural inhomogeneities in metallic glasses to enable tensile ductility at room temperature journal, December 2016

Effect of residual stresses on the hardness of bulk metallic glasses journal, April 2011

Shear-banding Induced Indentation Size Effect in Metallic Glasses journal, June 2016

Intrinsic correlation between β-relaxation and spatial heterogeneity in a metallic glass journal, May 2016

Effect of residual stresses on the onset of yielding in a Zr-based metallic glass journal, December 2011

Correlation between local elastic heterogeneities and overall elastic properties in metallic glasses
journal, December 2016

Tuning order in disorder
journal, May 2015

Embrittlement of a bulk metallic glass due to low-temperature annealing
journal, July 2002

Radial distribution function and structural relaxation in amorphous solids
journal, December 1981

Direct synchrotron x-ray measurements of local strain fields in elastically and plastically bent metallic glasses
journal, December 2015

On the correlation between microscopic structural heterogeneity and embrittlement behavior in metallic glasses
journal, October 2015

The thermal history effect on shear band initiation in metallic glass
journal, June 2016

Embrittlement of a bulk metallic glass due to sub- annealing
journal, March 2005

Deformation-induced spatiotemporal fluctuation, evolution and localization of strain fields in a bulk metallic glass
journal, August 2015

Reflections from the glass maze
journal, December 2010

Scale effects in convoluted thermal/spatial statistics of plasticity initiation in small stressed volumes during nanoindentation
journal, October 2012

The role of configurational disorder on plastic and dynamic deformation in Cu64Zr36 metallic glasses: A molecular dynamics analysis
journal, January 2017

Density changes in shear bands of a metallic glass determined by correlative analytical transmission electron microscopy
journal, July 2014

Microstructural heterogeneity perspective on the yield strength of metallic glasses
journal, February 2016

Structural heterogeneity induced plasticity in bulk metallic glasses: From well-relaxed fragile glass to metal-like behavior
journal, October 2013

Structural rejuvenation in bulk metallic glasses
journal, March 2015

Strength statistics of single crystals and metallic glasses under small stressed volumes
journal, September 2016

Stress-dependent shear transformation zone in Ni Nb thin film metallic glass and its correlation with deformation mode transition
journal, September 2016

Stress-induced structural transformation and shear banding during simulated nanoindentation of a metallic glass
journal, August 2007

How thermally activated deformation starts in metallic glass
journal, September 2014

Local elastic properties of a metallic glass
journal, May 2011

Structural processes that initiate shear localization in metallic glass
journal, October 2009

Rejuvenation decreases shear band sliding velocity in Pt-based metallic glasses
journal, January 2017

Mechanical behavior of amorphous alloys
journal, July 2007

Specimen Size Effects on Zr-Based Bulk Metallic Glasses Investigated by Uniaxial Compression and Spherical Nanoindentation
journal, September 2009

Test environments and mechanical properties of Zr-base bulk amorphous alloys
journal, July 1998

Origin of embrittlement in metallic glasses
journal, August 2016

Experimental characterization of shear transformation zones for plastic flow of bulk metallic glasses
journal, September 2008

A microscopic mechanism for steady state inhomogeneous flow in metallic glasses
journal, April 1977

Universal structural parameter to quantitatively predict metallic glass properties
journal, December 2016

Plastic deformation in metallic glasses
journal, January 1979

Effects of flow defects on hypothetical ZrCu metallic glasses microstructure and plasticity: A molecular dynamics analysis
journal, January 2016

Tailoring structural inhomogeneities in metallic glasses to enable tensile ductility at room temperature
journal, December 2016

Effect of residual stresses on the hardness of bulk metallic glasses
journal, April 2011

Shear-banding Induced Indentation Size Effect in Metallic Glasses
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Intrinsic correlation between β-relaxation and spatial heterogeneity in a metallic glass
journal, May 2016

Effect of residual stresses on the onset of yielding in a Zr-based metallic glass
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