Evaluation of thermoplastic formability of Zr-based bulk metallic glasses and its correlation with characteristic temperature parameters

Q. Hu; Mingwang Fu; X. R. Zeng

doi:10.1016/j.jallcom.2014.02.160

Evaluation of thermoplastic formability of Zr-based bulk metallic glasses and its correlation with characteristic temperature parameters

Q. Hu, Mingwang Fu, X. R. Zeng

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

11 Citations (Scopus)

Abstract

Thermoplastic formability (TPFA) is a key factor in fabrication of bulk metallic glass (BMG) components by thermoplastic forming (TPF) technology. In this paper, the softness in the entire super-cooled liquid region (SCLR) is used to evaluate the TPFA of 18 Be-free Zr-based BMGs and the reliability is verified by mould forming experiments. The correlations between softness and thermo-dynamic characteristic temperature parameters are well explained under the assumption of linear SCLR in Angel plot. A parameter constructed by thermo-dynamic and thermal-mechanical characteristic temperatures is proposed, representing the best correlation with softness. These results help understand the TPFA of BMGs well.

Original language	English
Pages (from-to)	326-330
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	602
DOIs	https://doi.org/10.1016/j.jallcom.2014.02.160
Publication status	Published - 25 Jul 2014

Keywords

Bulk metallic glass
Formability
Fragility
Super-cooled liquid
Thermoplastic forming

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2014.02.160

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AU - Hu, Q.

AU - Fu, Mingwang

AU - Zeng, X. R.

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Y1 - 2014/7/25

N2 - Thermoplastic formability (TPFA) is a key factor in fabrication of bulk metallic glass (BMG) components by thermoplastic forming (TPF) technology. In this paper, the softness in the entire super-cooled liquid region (SCLR) is used to evaluate the TPFA of 18 Be-free Zr-based BMGs and the reliability is verified by mould forming experiments. The correlations between softness and thermo-dynamic characteristic temperature parameters are well explained under the assumption of linear SCLR in Angel plot. A parameter constructed by thermo-dynamic and thermal-mechanical characteristic temperatures is proposed, representing the best correlation with softness. These results help understand the TPFA of BMGs well.

AB - Thermoplastic formability (TPFA) is a key factor in fabrication of bulk metallic glass (BMG) components by thermoplastic forming (TPF) technology. In this paper, the softness in the entire super-cooled liquid region (SCLR) is used to evaluate the TPFA of 18 Be-free Zr-based BMGs and the reliability is verified by mould forming experiments. The correlations between softness and thermo-dynamic characteristic temperature parameters are well explained under the assumption of linear SCLR in Angel plot. A parameter constructed by thermo-dynamic and thermal-mechanical characteristic temperatures is proposed, representing the best correlation with softness. These results help understand the TPFA of BMGs well.

KW - Bulk metallic glass

KW - Formability

KW - Fragility

KW - Super-cooled liquid

KW - Thermoplastic forming

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DO - 10.1016/j.jallcom.2014.02.160

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Evaluation of thermoplastic formability of Zr-based bulk metallic glasses and its correlation with characteristic temperature parameters

Abstract

Keywords

ASJC Scopus subject areas

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