Air-oxidation behavior of a Cu 60Hf 25Ti 15 bulk metallic glass at 375-520 °c

W. Kai; H. H. Hsieh; T. H. Ho; R. T. Huang; Y. L. Lin

doi:10.1007/s11085-007-9068-8

Air-oxidation behavior of a Cu ₆₀Hf ₂₅Ti ₁₅ bulk metallic glass at 375-520 °c

W. Kai^*
, H. H. Hsieh
, T. H. Ho
, R. T. Huang
, Y. L. Lin

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

8 Citations (Scopus)

Abstract

The oxidation behavior of a Cu ₆₀Hf ₂₅Ti ₁₅ bulk metallic glass was studied over the temperature range of 375-520 °C in dry air. The oxidation kinetics of the amorphous alloy generally followed the parabolic law at all temperatures, with an oxidation rate increasing with temperature. The oxidation rates of the amorphous alloy were much higher than those of polycrystalline pure-Cu, implying that the additions of Hf and Ti accelerated the oxidation reaction. The composition of the scales formed on the amorphous alloy was strongly temperature-dependent, since they consisted mostly of Cu ₄O ₃ and CuO with minor amounts of HfO ₂ at T ≤ 450 °C, while mostly CuO with minor amounts of HfO ₂ and Cu ₂TiO ₃ were detected at higher temperatures. In addition, nanocrystalline Cu ₅₁Hf ₁₄ and Cu ₃Ti ₂ phases were detected on the substrate after oxidation at T ≤ 450 °C, indicating the occurrence of phase transformation. © 2007 Springer Science+Business Media, LLC.

Original language	English
Pages (from-to)	177-192
Journal	Oxidation of Metals
Volume	68
Issue number	3-4
DOIs	https://doi.org/10.1007/s11085-007-9068-8
Publication status	Published - Oct 2007
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Bulk metallic glass
Cu 2TiO 3
Cu 4O 3
CuO
HfO 2
Oxidation

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10.1007/s11085-007-9068-8

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@article{bc54a4e6bdc54e3a8871678d734a8d95,

title = "Air-oxidation behavior of a Cu 60Hf 25Ti 15 bulk metallic glass at 375-520 °c",

abstract = "The oxidation behavior of a Cu 60Hf 25Ti 15 bulk metallic glass was studied over the temperature range of 375-520 °C in dry air. The oxidation kinetics of the amorphous alloy generally followed the parabolic law at all temperatures, with an oxidation rate increasing with temperature. The oxidation rates of the amorphous alloy were much higher than those of polycrystalline pure-Cu, implying that the additions of Hf and Ti accelerated the oxidation reaction. The composition of the scales formed on the amorphous alloy was strongly temperature-dependent, since they consisted mostly of Cu 4O 3 and CuO with minor amounts of HfO 2 at T ≤ 450 °C, while mostly CuO with minor amounts of HfO 2 and Cu 2TiO 3 were detected at higher temperatures. In addition, nanocrystalline Cu 51Hf 14 and Cu 3Ti 2 phases were detected on the substrate after oxidation at T ≤ 450 °C, indicating the occurrence of phase transformation. {\textcopyright} 2007 Springer Science+Business Media, LLC.",

keywords = "Bulk metallic glass, Cu 2TiO 3, Cu 4O 3, CuO, HfO 2, Oxidation",

author = "W. Kai and Hsieh, \{H. H.\} and Ho, \{T. H.\} and Huang, \{R. T.\} and Lin, \{Y. L.\}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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doi = "10.1007/s11085-007-9068-8",

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TY - JOUR

T1 - Air-oxidation behavior of a Cu 60Hf 25Ti 15 bulk metallic glass at 375-520 °c

AU - Kai, W.

AU - Hsieh, H. H.

AU - Ho, T. H.

AU - Huang, R. T.

AU - Lin, Y. L.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2007/10

Y1 - 2007/10

N2 - The oxidation behavior of a Cu 60Hf 25Ti 15 bulk metallic glass was studied over the temperature range of 375-520 °C in dry air. The oxidation kinetics of the amorphous alloy generally followed the parabolic law at all temperatures, with an oxidation rate increasing with temperature. The oxidation rates of the amorphous alloy were much higher than those of polycrystalline pure-Cu, implying that the additions of Hf and Ti accelerated the oxidation reaction. The composition of the scales formed on the amorphous alloy was strongly temperature-dependent, since they consisted mostly of Cu 4O 3 and CuO with minor amounts of HfO 2 at T ≤ 450 °C, while mostly CuO with minor amounts of HfO 2 and Cu 2TiO 3 were detected at higher temperatures. In addition, nanocrystalline Cu 51Hf 14 and Cu 3Ti 2 phases were detected on the substrate after oxidation at T ≤ 450 °C, indicating the occurrence of phase transformation. © 2007 Springer Science+Business Media, LLC.

AB - The oxidation behavior of a Cu 60Hf 25Ti 15 bulk metallic glass was studied over the temperature range of 375-520 °C in dry air. The oxidation kinetics of the amorphous alloy generally followed the parabolic law at all temperatures, with an oxidation rate increasing with temperature. The oxidation rates of the amorphous alloy were much higher than those of polycrystalline pure-Cu, implying that the additions of Hf and Ti accelerated the oxidation reaction. The composition of the scales formed on the amorphous alloy was strongly temperature-dependent, since they consisted mostly of Cu 4O 3 and CuO with minor amounts of HfO 2 at T ≤ 450 °C, while mostly CuO with minor amounts of HfO 2 and Cu 2TiO 3 were detected at higher temperatures. In addition, nanocrystalline Cu 51Hf 14 and Cu 3Ti 2 phases were detected on the substrate after oxidation at T ≤ 450 °C, indicating the occurrence of phase transformation. © 2007 Springer Science+Business Media, LLC.

KW - Bulk metallic glass

KW - Cu 2TiO 3

KW - Cu 4O 3

KW - CuO

KW - HfO 2

KW - Oxidation

UR - https://www.scopus.com/pages/publications/34548447506

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-34548447506&origin=recordpage

U2 - 10.1007/s11085-007-9068-8

DO - 10.1007/s11085-007-9068-8

M3 - RGC 21 - Publication in refereed journal

SN - 0030-770X

VL - 68

SP - 177

EP - 192

JO - Oxidation of Metals

JF - Oxidation of Metals

IS - 3-4

ER -