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

Gammer, C.; Escher, B.; Ebner, C.; Minor, A. M.; Karnthaler, H. P.; Eckert, J.; Pauly, S.; Rentenberger, C.

doi:10.1038/srep44903

Title: Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glass

Abstract

Fluctuation electron microscopy of bulk metallic glasses of CuZrAl(Ag) demonstrates that medium-range order is sensitive to minor compositional changes. Furthermore, by analyzing nanodiffraction patterns medium-range order is detected with crystal-like motifs based on the B2 CuZr structure and its distorted structures resembling the martensitic ones. This result thus demonstrates some structural homology between the metallic glass and its high temperature crystalline phase. The amount of medium-range order seems slightly affected with increasing Ag concentration (0, 2, 5 at.%) but the structural motifs of the medium-range ordered clusters become more diverse at the highest Ag concentration. The decrease of dominant clusters is consistent with the destabilization of the B2 structure measured by calorimetry and accounts for the increased glass-forming ability.

Authors:

Gammer, C. ^[1]; Escher, B. ^[2]; Ebner, C. ^[3]; Minor, A. M. ^[4]; Karnthaler, H. P. ^[3]; Eckert, J. ^[5]; Pauly, S. ^[2]; Rentenberger, C. ^[3]

Austrian Academy of Sciences, Leoben (Austria). Eich Schmid Inst. of Materials Science
Leibniz Inst. for Solid State and Materials Research (IFW Dresden) (Germany). Inst. for Complex Materials
Univ. of Vienna (Austria)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Center for Electron Microscopy; Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineeing
Austrian Academy of Sciences, Leoben (Austria). Eich Schmid Inst. of Materials Science; MontanuniversitÃ¤t Leoben (Austria). Dept. of Materials Physics

Publication Date:: Tue Mar 21 00:00:00 EDT 2017

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

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1413722

Grant/Contract Number:: AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Scientific Reports

Additional Journal Information:: Journal Volume: 7; Journal ID: ISSN 2045-2322

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; glasses; transmission electron microscopy

Citation Formats


                    Gammer, C., Escher, B., Ebner, C., Minor, A. M., Karnthaler, H. P., Eckert, J., Pauly, S., and Rentenberger, C. Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glass.  United States: N. p., 2017. 
Web.  doi:10.1038/srep44903.

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                    Gammer, C., Escher, B., Ebner, C., Minor, A. M., Karnthaler, H. P., Eckert, J., Pauly, S., & Rentenberger, C. Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glass.  United States.  https://doi.org/10.1038/srep44903

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                    Gammer, C., Escher, B., Ebner, C., Minor, A. M., Karnthaler, H. P., Eckert, J., Pauly, S., and Rentenberger, C. Tue .  
"Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glass".  United States.  https://doi.org/10.1038/srep44903.  https://www.osti.gov/servlets/purl/1413722.

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@article{osti_1413722,

  title        = {Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glass},

  author       = {Gammer, C. and Escher, B. and Ebner, C. and Minor, A. M. and Karnthaler, H. P. and Eckert, J. and Pauly, S. and Rentenberger, C.},

  abstractNote = {Fluctuation electron microscopy of bulk metallic glasses of CuZrAl(Ag) demonstrates that medium-range order is sensitive to minor compositional changes. Furthermore, by analyzing nanodiffraction patterns medium-range order is detected with crystal-like motifs based on the B2 CuZr structure and its distorted structures resembling the martensitic ones. This result thus demonstrates some structural homology between the metallic glass and its high temperature crystalline phase. The amount of medium-range order seems slightly affected with increasing Ag concentration (0, 2, 5 at.%) but the structural motifs of the medium-range ordered clusters become more diverse at the highest Ag concentration. The decrease of dominant clusters is consistent with the destabilization of the B2 structure measured by calorimetry and accounts for the increased glass-forming ability.},

  doi          = {10.1038/srep44903},

  journal      = {Scientific Reports},

  number       = ,

  volume       = 7,

  place        = {United States},

  year         = {Tue Mar 21 00:00:00 EDT 2017},

  month        = {Tue Mar 21 00:00:00 EDT 2017}

}

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Works referencing / citing this record:

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journal, June 2019

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Nature Communications, Vol. 10, Issue 1
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Title: Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glass

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Structure of rapidly quenched (Cu0.5Zr0.5)100−Ag alloys (x= 0–40 at.%)
journal, September 2014

Glass-Forming Ability and Mechanical Properties of the Ternary Cu-Zr-Al and Quaternary Cu-Zr-Al-Ag Bulk Metallic Glasses
journal, January 2007

Direct measurement of nanostructural change during in situ deformation of a bulk metallic glass
journal, June 2019

Origin of large plasticity and multiscale effects in iron-based metallic glasses
journal, April 2018

Origin of large plasticity and multiscale effects in iron-based metallic glasses
text, January 2018

Direct measurement of nanostructural change during in situ deformation of a bulk metallic glass
journal, June 2019