Cu-based bulk amorphous alloys prepared by consolidation of amorphous powders in the supercooled liquid region

H. J. Kim; J. K. Lee; S. Y. Shin; H. G. Jeong; D. H. Kim; J. C. Bae

doi:10.1016/j.intermet.2004.04.016

Cu-based bulk amorphous alloys prepared by consolidation of amorphous powders in the supercooled liquid region

H. J. Kim, J. K. Lee, S. Y. Shin, H. G. Jeong, D. H. Kim, J. C. Bae

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

We report the fabrication of the Cu-Ni-Zr-Ti bulk amorphous alloys by warm rolling of amorphous powders, which have been prepared by a high-pressure gas atomization. The Cu₅₄Ni₆Zr₂₂Ti₁₈ amorphous powders obtained by a high-pressure He gas atomization method has a wide supercooled liquid region of 53 K. By warm rolling of amorphous powders in the supercooled liquid state, a fully amorphous Cu₅₄Ni ₆Zr₂₂Ti₁₈ alloy is successfully synthesized. The conditions for rolling are obtained from the time-temperature-transformation curve by measuring the time for the onset of crystallization during isothermal annealing in differential scanning calorimetry. The rolled bulk amorphous Cu₅₄Ni₆Zr₂₂Ti₁₈ alloy exhibited high strength about 1.9 GPa, which is against similar to that obtained in the as-cast bulk amorphous alloy.

Original language	English
Pages (from-to)	1109-1113
Number of pages	5
Journal	Intermetallics
Volume	12
Issue number	10-11 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.intermet.2004.04.016
Publication status	Published - 2004 Oct

Bibliographical note

Funding Information:
This work is supported by the Next Generation-New Technology Development Program of Ministry of Commerce, Industry and Energy in Korea.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.intermet.2004.04.016

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title = "Cu-based bulk amorphous alloys prepared by consolidation of amorphous powders in the supercooled liquid region",

abstract = "We report the fabrication of the Cu-Ni-Zr-Ti bulk amorphous alloys by warm rolling of amorphous powders, which have been prepared by a high-pressure gas atomization. The Cu54Ni6Zr22Ti18 amorphous powders obtained by a high-pressure He gas atomization method has a wide supercooled liquid region of 53 K. By warm rolling of amorphous powders in the supercooled liquid state, a fully amorphous Cu54Ni 6Zr22Ti18 alloy is successfully synthesized. The conditions for rolling are obtained from the time-temperature-transformation curve by measuring the time for the onset of crystallization during isothermal annealing in differential scanning calorimetry. The rolled bulk amorphous Cu54Ni6Zr22Ti18 alloy exhibited high strength about 1.9 GPa, which is against similar to that obtained in the as-cast bulk amorphous alloy.",

author = "Kim, {H. J.} and Lee, {J. K.} and Shin, {S. Y.} and Jeong, {H. G.} and Kim, {D. H.} and Bae, {J. C.}",

note = "Funding Information: This work is supported by the Next Generation-New Technology Development Program of Ministry of Commerce, Industry and Energy in Korea.",

year = "2004",

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doi = "10.1016/j.intermet.2004.04.016",

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T1 - Cu-based bulk amorphous alloys prepared by consolidation of amorphous powders in the supercooled liquid region

AU - Kim, H. J.

AU - Lee, J. K.

AU - Shin, S. Y.

AU - Jeong, H. G.

AU - Kim, D. H.

AU - Bae, J. C.

N1 - Funding Information: This work is supported by the Next Generation-New Technology Development Program of Ministry of Commerce, Industry and Energy in Korea.

PY - 2004/10

Y1 - 2004/10

N2 - We report the fabrication of the Cu-Ni-Zr-Ti bulk amorphous alloys by warm rolling of amorphous powders, which have been prepared by a high-pressure gas atomization. The Cu54Ni6Zr22Ti18 amorphous powders obtained by a high-pressure He gas atomization method has a wide supercooled liquid region of 53 K. By warm rolling of amorphous powders in the supercooled liquid state, a fully amorphous Cu54Ni 6Zr22Ti18 alloy is successfully synthesized. The conditions for rolling are obtained from the time-temperature-transformation curve by measuring the time for the onset of crystallization during isothermal annealing in differential scanning calorimetry. The rolled bulk amorphous Cu54Ni6Zr22Ti18 alloy exhibited high strength about 1.9 GPa, which is against similar to that obtained in the as-cast bulk amorphous alloy.

AB - We report the fabrication of the Cu-Ni-Zr-Ti bulk amorphous alloys by warm rolling of amorphous powders, which have been prepared by a high-pressure gas atomization. The Cu54Ni6Zr22Ti18 amorphous powders obtained by a high-pressure He gas atomization method has a wide supercooled liquid region of 53 K. By warm rolling of amorphous powders in the supercooled liquid state, a fully amorphous Cu54Ni 6Zr22Ti18 alloy is successfully synthesized. The conditions for rolling are obtained from the time-temperature-transformation curve by measuring the time for the onset of crystallization during isothermal annealing in differential scanning calorimetry. The rolled bulk amorphous Cu54Ni6Zr22Ti18 alloy exhibited high strength about 1.9 GPa, which is against similar to that obtained in the as-cast bulk amorphous alloy.

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ER -

Cu-based bulk amorphous alloys prepared by consolidation of amorphous powders in the supercooled liquid region

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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