Achieving stable plastic flows in a Zr-based bulk metallic glass under tailored mixed-mode (I/II) loading conditions

Shun Hua Chen; H.H.  Tang; H.M.  Zheng; WJ Chang; JC Zhang; HD Yang; ZF Zhang; DB Yu; Kang Cheung Chan; RP Liu

doi:10.1016/j.msea.2019.138695

Achieving stable plastic flows in a Zr-based bulk metallic glass under tailored mixed-mode (I/II) loading conditions

Shun Hua Chen, H.H. Tang, H.M. Zheng, WJ Chang, JC Zhang, HD Yang, ZF Zhang, DB Yu, Kang Cheung Chan, RP Liu

Research output: Journal article publication › Journal article › Academic research › peer-review

9 Citations (Scopus)

Abstract

The achievement of stable plastic flows plays a key role for practical structural applications of bulk metallic glasses (BMGs). In this work, by designing complex stress fields through tailored double-side notches, stable plastic flows in a Zr-based BMG were achieved under mixed-mode (I/II) loading conditions. The deformation behavior of the notched BMG specimens, including the shear-banding and fracture behaviors, was examined and correlated to the designed complex stress fields. The findings have shown that the stable plastic flows were mainly caused by the introducing of mode-II component under the mixed-mode (I/II) loading conditions. Increase of the mode-II component can result in not only more stable plastic flows, but also larger bearing loads. The present findings are of significance in uncovering the plastic deformation mechanisms of BMGs under mixed-mode loading conditions and in designing BMG structures with better mechanical performance.

Original language	English
Article number	138695
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	772
DOIs	https://doi.org/10.1016/j.msea.2019.138695
Publication status	Published - 20 Jan 2020

Keywords

Bulk metallic glass; Plastic flow; Mixed-mode; Complex stress field; Shear band
Plastic flow
Complex stress field
Mixed-mode
Shear band
Bulk metallic glass

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
General Materials Science

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10.1016/j.msea.2019.138695

http://hdl.handle.net/10397/104182

Cite this

Chen, S. H., Tang, H. H., Zheng, H. M., Chang, WJ., Zhang, JC., Yang, HD., Zhang, ZF., Yu, DB., Chan, K. C., & Liu, RP. (2020). Achieving stable plastic flows in a Zr-based bulk metallic glass under tailored mixed-mode (I/II) loading conditions. Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 772, Article 138695. https://doi.org/10.1016/j.msea.2019.138695

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title = "Achieving stable plastic flows in a Zr-based bulk metallic glass under tailored mixed-mode (I/II) loading conditions",

abstract = "The achievement of stable plastic flows plays a key role for practical structural applications of bulk metallic glasses (BMGs). In this work, by designing complex stress fields through tailored double-side notches, stable plastic flows in a Zr-based BMG were achieved under mixed-mode (I/II) loading conditions. The deformation behavior of the notched BMG specimens, including the shear-banding and fracture behaviors, was examined and correlated to the designed complex stress fields. The findings have shown that the stable plastic flows were mainly caused by the introducing of mode-II component under the mixed-mode (I/II) loading conditions. Increase of the mode-II component can result in not only more stable plastic flows, but also larger bearing loads. The present findings are of significance in uncovering the plastic deformation mechanisms of BMGs under mixed-mode loading conditions and in designing BMG structures with better mechanical performance.",

keywords = "Bulk metallic glass; Plastic flow; Mixed-mode; Complex stress field; Shear band, Plastic flow, Complex stress field, Mixed-mode, Shear band, Bulk metallic glass",

author = "Chen, {Shun Hua} and H.H. Tang and H.M. Zheng and WJ Chang and JC Zhang and HD Yang and ZF Zhang and DB Yu and Chan, {Kang Cheung} and RP Liu",

note = "Funding Information: The work described in this paper was supported by grants from the National Natural Science Foundation of China under research project No. 51801049 and 21606217 , and a grant from the State Key Laboratory of Metastable Materials Science and Technology , Yanshan University (project No. 201809 ). This work was also supported by the Fundamental Research Funds for the Central Universities of China (Grant No. PA2019GDZC0096 ). Appendix A Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = jan,

day = "20",

doi = "10.1016/j.msea.2019.138695",

language = "English",

volume = "772",

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Chen, SH, Tang, HH, Zheng, HM, Chang, WJ, Zhang, JC, Yang, HD, Zhang, ZF, Yu, DB, Chan, KC & Liu, RP 2020, 'Achieving stable plastic flows in a Zr-based bulk metallic glass under tailored mixed-mode (I/II) loading conditions', Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, vol. 772, 138695. https://doi.org/10.1016/j.msea.2019.138695

Achieving stable plastic flows in a Zr-based bulk metallic glass under tailored mixed-mode (I/II) loading conditions. / Chen, Shun Hua; Tang, H.H. ; Zheng, H.M. et al.
In: Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, Vol. 772, 138695, 20.01.2020.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - Achieving stable plastic flows in a Zr-based bulk metallic glass under tailored mixed-mode (I/II) loading conditions

AU - Chen, Shun Hua

AU - Tang, H.H.

AU - Zheng, H.M.

AU - Chang, WJ

AU - Zhang, JC

AU - Yang, HD

AU - Zhang, ZF

AU - Yu, DB

AU - Chan, Kang Cheung

AU - Liu, RP

N1 - Funding Information: The work described in this paper was supported by grants from the National Natural Science Foundation of China under research project No. 51801049 and 21606217 , and a grant from the State Key Laboratory of Metastable Materials Science and Technology , Yanshan University (project No. 201809 ). This work was also supported by the Fundamental Research Funds for the Central Universities of China (Grant No. PA2019GDZC0096 ). Appendix A Publisher Copyright: © 2019 Elsevier B.V.

PY - 2020/1/20

Y1 - 2020/1/20

N2 - The achievement of stable plastic flows plays a key role for practical structural applications of bulk metallic glasses (BMGs). In this work, by designing complex stress fields through tailored double-side notches, stable plastic flows in a Zr-based BMG were achieved under mixed-mode (I/II) loading conditions. The deformation behavior of the notched BMG specimens, including the shear-banding and fracture behaviors, was examined and correlated to the designed complex stress fields. The findings have shown that the stable plastic flows were mainly caused by the introducing of mode-II component under the mixed-mode (I/II) loading conditions. Increase of the mode-II component can result in not only more stable plastic flows, but also larger bearing loads. The present findings are of significance in uncovering the plastic deformation mechanisms of BMGs under mixed-mode loading conditions and in designing BMG structures with better mechanical performance.

AB - The achievement of stable plastic flows plays a key role for practical structural applications of bulk metallic glasses (BMGs). In this work, by designing complex stress fields through tailored double-side notches, stable plastic flows in a Zr-based BMG were achieved under mixed-mode (I/II) loading conditions. The deformation behavior of the notched BMG specimens, including the shear-banding and fracture behaviors, was examined and correlated to the designed complex stress fields. The findings have shown that the stable plastic flows were mainly caused by the introducing of mode-II component under the mixed-mode (I/II) loading conditions. Increase of the mode-II component can result in not only more stable plastic flows, but also larger bearing loads. The present findings are of significance in uncovering the plastic deformation mechanisms of BMGs under mixed-mode loading conditions and in designing BMG structures with better mechanical performance.

KW - Bulk metallic glass; Plastic flow; Mixed-mode; Complex stress field; Shear band

KW - Plastic flow

KW - Complex stress field

KW - Mixed-mode

KW - Shear band

KW - Bulk metallic glass

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UR - http://www.scopus.com/inward/record.url?scp=85075808707&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2019.138695

DO - 10.1016/j.msea.2019.138695

M3 - Journal article

SN - 0921-5093

VL - 772

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

M1 - 138695

ER -

Achieving stable plastic flows in a Zr-based bulk metallic glass under tailored mixed-mode (I/II) loading conditions

Abstract

Keywords

ASJC Scopus subject areas

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