Viscous flow and thermoplastic forming ability of a Zr-based bulk metallic glass composite with Ta dispersoids

J. B. Li; H. Z. Zhang; J. S.C. Jang; S. R. Jian; C. Li; J. C. Huang; T. G. Nieh

doi:10.1016/j.jallcom.2012.01.020

Viscous flow and thermoplastic forming ability of a Zr-based bulk metallic glass composite with Ta dispersoids

J. B. Li, H. Z. Zhang, J. S.C. Jang, S. R. Jian, C. Li, J. C. Huang, T. G. Nieh

材料科學與工程研究所

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

16 引文斯高帕斯（Scopus）

摘要

The thermoplastic deformation behavior of a Zr _47.3Cu ₃₂Al ₈Ag ₈Ta ₄Si _0.7-based bulk metallic glass composite (BMGC) is studied using thermal mechanical analyzer (TMA) and high temperature compression test in the supercooled liquid (SCL) region. The deformation behavior of the Zr _47.3Cu ₃₂Al ₈Ag ₈Ta ₄Si _0.7-based BMGC rod is investigated using TMA under compression at different strain rates (5 × 10 ^-2 to 5 × 10 ^-1 s ^-1) and at different temperatures above the onset temperature of viscous-flow (∼740 to 764 K) in the SCL region. It is observed that, at a constant strain rate of 5 × 10 ^-2 s ^-1, the flow stress decreases with increasing temperature and reaches a relatively low value about 76 MPa at 764 K. In parallel, the value of flow stress increases with increasing strain rate at the same testing temperature. A satisfactory thermoplastic forming ability of the Zr _47.3Cu ₃₂Al ₈Ag ₈Ta ₄Si _0.7-based BMGC in the SCL region is demonstrated by imprinting the hologram pattern.

原文	???core.languages.en_GB???
頁（從 - 到）	S165-S170
期刊	Journal of Alloys and Compounds
卷	536
發行號	SUPPL.1
DOIs	https://doi.org/10.1016/j.jallcom.2012.01.020
出版狀態	已出版 - 25 9月 2012

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10.1016/j.jallcom.2012.01.020

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@article{08aa058406804e998d0b3259176a44a6,

title = "Viscous flow and thermoplastic forming ability of a Zr-based bulk metallic glass composite with Ta dispersoids",

abstract = "The thermoplastic deformation behavior of a Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based bulk metallic glass composite (BMGC) is studied using thermal mechanical analyzer (TMA) and high temperature compression test in the supercooled liquid (SCL) region. The deformation behavior of the Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based BMGC rod is investigated using TMA under compression at different strain rates (5 × 10 -2 to 5 × 10 -1 s -1) and at different temperatures above the onset temperature of viscous-flow (∼740 to 764 K) in the SCL region. It is observed that, at a constant strain rate of 5 × 10 -2 s -1, the flow stress decreases with increasing temperature and reaches a relatively low value about 76 MPa at 764 K. In parallel, the value of flow stress increases with increasing strain rate at the same testing temperature. A satisfactory thermoplastic forming ability of the Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based BMGC in the SCL region is demonstrated by imprinting the hologram pattern.",

keywords = "Casting, Composites, Dispersion strengthening, Mechanical properties at ambient temperature, Metallic glasses",

author = "Li, {J. B.} and Zhang, {H. Z.} and Jang, {J. S.C.} and Jian, {S. R.} and C. Li and Huang, {J. C.} and Nieh, {T. G.}",

note = "Funding Information: The authors would like to gratefully acknowledge the sponsorship from the National Science Council of ROC under the project NSC98-2221-E-008-116-MY3, NSC99-3113-P-008-003, and NSC100-2120-M-110-004. In addition, the authors also like to acknowledge the help on TEM analysis by the Micro and Nano Analysis Laboratory of I-Shou University.",

year = "2012",

month = sep,

day = "25",

doi = "10.1016/j.jallcom.2012.01.020",

language = "???core.languages.en_GB???",

volume = "536",

pages = "S165--S170",

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TY - JOUR

T1 - Viscous flow and thermoplastic forming ability of a Zr-based bulk metallic glass composite with Ta dispersoids

AU - Li, J. B.

AU - Zhang, H. Z.

AU - Jang, J. S.C.

AU - Jian, S. R.

AU - Li, C.

AU - Huang, J. C.

AU - Nieh, T. G.

N1 - Funding Information: The authors would like to gratefully acknowledge the sponsorship from the National Science Council of ROC under the project NSC98-2221-E-008-116-MY3, NSC99-3113-P-008-003, and NSC100-2120-M-110-004. In addition, the authors also like to acknowledge the help on TEM analysis by the Micro and Nano Analysis Laboratory of I-Shou University.

PY - 2012/9/25

Y1 - 2012/9/25

N2 - The thermoplastic deformation behavior of a Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based bulk metallic glass composite (BMGC) is studied using thermal mechanical analyzer (TMA) and high temperature compression test in the supercooled liquid (SCL) region. The deformation behavior of the Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based BMGC rod is investigated using TMA under compression at different strain rates (5 × 10 -2 to 5 × 10 -1 s -1) and at different temperatures above the onset temperature of viscous-flow (∼740 to 764 K) in the SCL region. It is observed that, at a constant strain rate of 5 × 10 -2 s -1, the flow stress decreases with increasing temperature and reaches a relatively low value about 76 MPa at 764 K. In parallel, the value of flow stress increases with increasing strain rate at the same testing temperature. A satisfactory thermoplastic forming ability of the Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based BMGC in the SCL region is demonstrated by imprinting the hologram pattern.

AB - The thermoplastic deformation behavior of a Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based bulk metallic glass composite (BMGC) is studied using thermal mechanical analyzer (TMA) and high temperature compression test in the supercooled liquid (SCL) region. The deformation behavior of the Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based BMGC rod is investigated using TMA under compression at different strain rates (5 × 10 -2 to 5 × 10 -1 s -1) and at different temperatures above the onset temperature of viscous-flow (∼740 to 764 K) in the SCL region. It is observed that, at a constant strain rate of 5 × 10 -2 s -1, the flow stress decreases with increasing temperature and reaches a relatively low value about 76 MPa at 764 K. In parallel, the value of flow stress increases with increasing strain rate at the same testing temperature. A satisfactory thermoplastic forming ability of the Zr 47.3Cu 32Al 8Ag 8Ta 4Si 0.7-based BMGC in the SCL region is demonstrated by imprinting the hologram pattern.

KW - Casting

KW - Composites

KW - Dispersion strengthening

KW - Mechanical properties at ambient temperature

KW - Metallic glasses

UR - http://www.scopus.com/inward/record.url?scp=84865676185&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2012.01.020

DO - 10.1016/j.jallcom.2012.01.020

M3 - 期刊論文

AN - SCOPUS:84865676185

SN - 0925-8388

VL - 536

SP - S165-S170

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SUPPL.1

ER -

Viscous flow and thermoplastic forming ability of a Zr-based bulk metallic glass composite with Ta dispersoids

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