Direct observation of nanocrystal-induced enhancement of tensile ductility in a metallic glass composite

Gammer, Christoph; Rentenberger, Christian; Beitelschmidt, Denise; Minor, Andrew M.; Eckert, Jürgen

doi:10.1016/j.matdes.2021.109970

Title: Direct observation of nanocrystal-induced enhancement of tensile ductility in a metallic glass composite

Abstract

Bulk metallic glasses (BMGs) have attracted wide interest, but their successful application is hindered by their low ductility at room temperature. Therefore, the use of composites of a BMG matrix with crystalline secondary phases has been proposed to overcome this drawback. In the present work we demonstrate the fabrication of a tailored BMG nanocomposite containing a high density of monodisperse nanocrystals with a size of around 20 nm using a combination of mechanical and thermal treatment of Cu₃₆Zr₄₈Al₈Ag₈ well below the crystallization temperature. Direct observations of the interaction of the nanocrystals with a shear band during in situ deformation in a transmission electron microscope demonstrate that the achieved nanocomposite has the potential to inhibit catastrophic fracture in tension. This demonstrates that a sufficient number of nanoscale structural heterogeneities can be a route towards BMG composites with superior mechanical properties.

Authors:: Gammer, Christoph; Rentenberger, Christian; Beitelschmidt, Denise; Minor, Andrew M.; Eckert, Jürgen

Publication Date:: Mon Nov 01 00:00:00 EDT 2021

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Austrian Academy of Sciences; Austrian Science Fund (FWF); European Research Council (ERC)

OSTI Identifier:: 1806597

Alternate Identifier(s):: OSTI ID: 1902665

Grant/Contract Number:: AC02-05-CH11231; AC02-05CH11231; I1309; Y1236-N37; ERC-2013-ADG-340025

Resource Type:: Published Article

Journal Name:: Materials & Design

Additional Journal Information:: Journal Name: Materials & Design Journal Volume: 209 Journal Issue: C; Journal ID: ISSN 0264-1275

Publisher:: Elsevier

Country of Publication:: United Kingdom

Language:: English

Subject:: 36 MATERIALS SCIENCE; metallic glass; nanocrystals; transmission electron microscopy; in situ deformation

Citation Formats


                    Gammer, Christoph, Rentenberger, Christian, Beitelschmidt, Denise, Minor, Andrew M., and Eckert, Jürgen. Direct observation of nanocrystal-induced enhancement of tensile ductility in a metallic glass composite.  United Kingdom: N. p., 2021. 
Web.  doi:10.1016/j.matdes.2021.109970.

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                    Gammer, Christoph, Rentenberger, Christian, Beitelschmidt, Denise, Minor, Andrew M., & Eckert, Jürgen. Direct observation of nanocrystal-induced enhancement of tensile ductility in a metallic glass composite.  United Kingdom.  https://doi.org/10.1016/j.matdes.2021.109970

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                    Gammer, Christoph, Rentenberger, Christian, Beitelschmidt, Denise, Minor, Andrew M., and Eckert, Jürgen. Mon .  
"Direct observation of nanocrystal-induced enhancement of tensile ductility in a metallic glass composite".  United Kingdom.  https://doi.org/10.1016/j.matdes.2021.109970.

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@article{osti_1806597,

  title        = {Direct observation of nanocrystal-induced enhancement of tensile ductility in a metallic glass composite},

  author       = {Gammer, Christoph and Rentenberger, Christian and Beitelschmidt, Denise and Minor, Andrew M. and Eckert, Jürgen},

  abstractNote = {Bulk metallic glasses (BMGs) have attracted wide interest, but their successful application is hindered by their low ductility at room temperature. Therefore, the use of composites of a BMG matrix with crystalline secondary phases has been proposed to overcome this drawback. In the present work we demonstrate the fabrication of a tailored BMG nanocomposite containing a high density of monodisperse nanocrystals with a size of around 20 nm using a combination of mechanical and thermal treatment of Cu36Zr48Al8Ag8 well below the crystallization temperature. Direct observations of the interaction of the nanocrystals with a shear band during in situ deformation in a transmission electron microscope demonstrate that the achieved nanocomposite has the potential to inhibit catastrophic fracture in tension. This demonstrates that a sufficient number of nanoscale structural heterogeneities can be a route towards BMG composites with superior mechanical properties.},

  doi          = {10.1016/j.matdes.2021.109970},

  journal      = {Materials & Design},

  number       = C,

  volume       = 209,

  place        = {United Kingdom},

  year         = {Mon Nov 01 00:00:00 EDT 2021},

  month        = {Mon Nov 01 00:00:00 EDT 2021}

}

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Title: Direct observation of nanocrystal-induced enhancement of tensile ductility in a metallic glass composite

Abstract

Citation Formats

New Cu–Zr-based bulk metallic glasses with large diameters of up to 1.5cm journal, October 2006

Complex precipitation pathways in multicomponent alloys journal, May 2006

Transformation-mediated ductility in CuZr-based bulk metallic glasses journal, May 2010

Local nanoscale strain mapping of a metallic glass during in situ testing journal, April 2018

Mechanical properties of metallic glass matrix composites: Effects of reinforcement character and connectivity journal, April 2007

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Structure and shear deformation of metallic crystalline–amorphous interfaces journal, June 2013

Size Effect Suppresses Brittle Failure in Hollow Cu 60 Zr 40 Metallic Glass Nanolattices Deformed at Cryogenic Temperatures journal, August 2015

On the microstructure–tensile property correlations in bulk metallic glass matrix composites with crystalline dendrites journal, August 2012

Designing tensile ductility in metallic glasses journal, July 2013

Structure-property relationships in nanoporous metallic glasses journal, March 2016

Electron beam induced rejuvenation in a metallic glass film during in-situ TEM tensile straining journal, December 2019

Phase-separation-enhanced plasticity in a Cu47.2Zr46.5Al5.5Nb0.8 bulk metallic glass journal, February 2014

Achieving work hardening by forming boundaries on the nanoscale in a Ti-based metallic glass matrix composite journal, August 2020

Functionalization of Metallic Glasses through Hierarchical Patterning journal, January 2015

Ductile crystalline-amorphous nanolaminates journal, June 2007

Influence of Crystalline Nanoprecipitates on Shear-Band Propagation in Cu-Zr-Based Metallic Glasses journal, May 2016

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Ultrastrong steel via minimal lattice misfit and high-density nanoprecipitation journal, April 2017

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Correlation between the microstructures and the deformation mechanisms of CuZr-based bulk metallic glass composites journal, January 2013

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Designing metallic glass matrix composites with high toughness and tensile ductility journal, February 2008

Bulk Metallic Glass Composites with Transformation-Mediated Work-Hardening and Ductility journal, April 2010

Ductile bulk metallic glasses produced through designed heterogeneities journal, November 2011

New Cu–Zr-based bulk metallic glasses with large diameters of up to 1.5cm
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Complex precipitation pathways in multicomponent alloys
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Transformation-mediated ductility in CuZr-based bulk metallic glasses
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Local nanoscale strain mapping of a metallic glass during in situ testing
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Mechanical properties of metallic glass matrix composites: Effects of reinforcement character and connectivity
journal, April 2007

Structural and mechanical characterization of heterogeneities in a CuZr-based bulk metallic glass processed by high pressure torsion
journal, November 2018

Metallic glasses as structural materials
journal, February 2006

Structure and shear deformation of metallic crystalline–amorphous interfaces
journal, June 2013

Size Effect Suppresses Brittle Failure in Hollow Cu ₆₀ Zr ₄₀ Metallic Glass Nanolattices Deformed at Cryogenic Temperatures
journal, August 2015

On the microstructure–tensile property correlations in bulk metallic glass matrix composites with crystalline dendrites
journal, August 2012

Designing tensile ductility in metallic glasses
journal, July 2013

Structure-property relationships in nanoporous metallic glasses
journal, March 2016

Electron beam induced rejuvenation in a metallic glass film during in-situ TEM tensile straining
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Phase-separation-enhanced plasticity in a Cu47.2Zr46.5Al5.5Nb0.8 bulk metallic glass
journal, February 2014

Achieving work hardening by forming boundaries on the nanoscale in a Ti-based metallic glass matrix composite
journal, August 2020

Functionalization of Metallic Glasses through Hierarchical Patterning
journal, January 2015

Ductile crystalline-amorphous nanolaminates
journal, June 2007

Influence of Crystalline Nanoprecipitates on Shear-Band Propagation in Cu-Zr-Based Metallic Glasses
journal, May 2016

Processing Routes, Microstructure and Mechanical Properties of Metallic Glasses and their Composites
journal, June 2007

A new finite element fatigue modeling approach for life scatter in tensile steel specimens
journal, April 2010

Bulk Metallic Glass: The Smaller the Better
journal, October 2010

Metallic glass matrix composites
journal, February 2016

Ultrastrong steel via minimal lattice misfit and high-density nanoprecipitation
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journal, August 2007

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journal, January 2013

Mechanical behavior of amorphous alloys
journal, July 2007

Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glass
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journal, September 2016

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journal, February 2016

A brief overview of bulk metallic glasses
journal, September 2011

Effect of sample size on deformation in amorphous metals
journal, April 2008

Brittle-to-Ductile Transition in Metallic Glass Nanowires
journal, June 2016

Highly monodisperse core–shell particles created by solid-state reactions
journal, August 2011

Precipitation Hardening in the First Aerospace Aluminum Alloy: The Wright Flyer Crankcase
journal, November 1994

Mechanistic coupling of dislocation and shear transformation zone plasticity in crystalline-amorphous nanolaminates
journal, September 2016

Effect of cooling rate on the microstructure and microhardness of the CuZrAgAl alloy
journal, August 2012

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journal, February 2008

Bulk Metallic Glass Composites with Transformation-Mediated Work-Hardening and Ductility
journal, April 2010

Ductile bulk metallic glasses produced through designed heterogeneities
journal, November 2011