Oxidation behavior of a Zr-Cu-Al-Ni amorphous alloy in air at 300-425 °C

W. Kai; H. H. Hsieh; T. G. Nieh; Y. Kawamura

doi:10.1016/S0966-9795(02)00163-2

Oxidation behavior of a Zr-Cu-Al-Ni amorphous alloy in air at 300-425 °C

W. Kai
, H. H. Hsieh
, T. G. Nieh
, Y. Kawamura

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

81 Citations (Scopus)

Abstract

The oxidation behavior of Zr-30Cu-10Al-5Ni bulk metallic glass and its crystalline counterpart was studied over the temperature range of 300-425 °C in dry air. In general, the oxidation kinetics of both amorphous and crystalline alloys followed a two- or three-stage parabolic rate law at T≥350 °C, while at 300 °C the amorphous alloy oxidized following a linear behavior. The oxidation rate constants for the amorphous alloy are slightly higher than those for the crystalline alloy at 350-400 °C. The scale formed on the amorphous alloy consists of mainly tetragonal-ZrO₂ at 300 °C, while a mixture of monoclinic-ZrO₂ (m-ZrO₂) and tetragonal-ZrO₂ (t-ZrO₂) and some CuO were detected at higher temperatures. The scale formed on the crystalline alloy, on the other hand, consists of mainly Al₂O₃, some tetragonal-ZrO₂, and a slight amount of monoclinic-ZrO₂ at 300 °C. At higher temperatures, the crystalline alloy consists of mainly monoclinic-ZrO₂, some CuO and Cu₂O, and limited tetragonal-ZrO₂. It is suggested that the formation of Al₂O₃ (at 300 °C) and CuO/Cu₂O (at 350-400 °C) on the crystalline alloy is responsible for the reduced oxidation rates as compared with those of amorphous alloy. © 2002 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	1265-1270
Journal	Intermetallics
Volume	10
Issue number	11-12
DOIs	https://doi.org/10.1016/S0966-9795(02)00163-2
Publication status	Published - Nov 2002
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

B. Oxidation
Diffusion

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@article{80421b30710944e7a8e7fdb8a9ac1d1d,

title = "Oxidation behavior of a Zr-Cu-Al-Ni amorphous alloy in air at 300-425 °C",

abstract = "The oxidation behavior of Zr-30Cu-10Al-5Ni bulk metallic glass and its crystalline counterpart was studied over the temperature range of 300-425 °C in dry air. In general, the oxidation kinetics of both amorphous and crystalline alloys followed a two- or three-stage parabolic rate law at T≥350 °C, while at 300 °C the amorphous alloy oxidized following a linear behavior. The oxidation rate constants for the amorphous alloy are slightly higher than those for the crystalline alloy at 350-400 °C. The scale formed on the amorphous alloy consists of mainly tetragonal-ZrO2 at 300 °C, while a mixture of monoclinic-ZrO2 (m-ZrO2) and tetragonal-ZrO2 (t-ZrO2) and some CuO were detected at higher temperatures. The scale formed on the crystalline alloy, on the other hand, consists of mainly Al2O3, some tetragonal-ZrO2, and a slight amount of monoclinic-ZrO2 at 300 °C. At higher temperatures, the crystalline alloy consists of mainly monoclinic-ZrO2, some CuO and Cu2O, and limited tetragonal-ZrO2. It is suggested that the formation of Al2O3 (at 300 °C) and CuO/Cu2O (at 350-400 °C) on the crystalline alloy is responsible for the reduced oxidation rates as compared with those of amorphous alloy. {\textcopyright} 2002 Elsevier Science Ltd. All rights reserved.",

keywords = "B. Oxidation, Diffusion",

author = "W. Kai and Hsieh, \{H. H.\} and Nieh, \{T. G.\} and Y. Kawamura",

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].",

year = "2002",

month = nov,

doi = "10.1016/S0966-9795(02)00163-2",

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TY - JOUR

T1 - Oxidation behavior of a Zr-Cu-Al-Ni amorphous alloy in air at 300-425 °C

AU - Kai, W.

AU - Hsieh, H. H.

AU - Nieh, T. G.

AU - Kawamura, Y.

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 - 2002/11

Y1 - 2002/11

N2 - The oxidation behavior of Zr-30Cu-10Al-5Ni bulk metallic glass and its crystalline counterpart was studied over the temperature range of 300-425 °C in dry air. In general, the oxidation kinetics of both amorphous and crystalline alloys followed a two- or three-stage parabolic rate law at T≥350 °C, while at 300 °C the amorphous alloy oxidized following a linear behavior. The oxidation rate constants for the amorphous alloy are slightly higher than those for the crystalline alloy at 350-400 °C. The scale formed on the amorphous alloy consists of mainly tetragonal-ZrO2 at 300 °C, while a mixture of monoclinic-ZrO2 (m-ZrO2) and tetragonal-ZrO2 (t-ZrO2) and some CuO were detected at higher temperatures. The scale formed on the crystalline alloy, on the other hand, consists of mainly Al2O3, some tetragonal-ZrO2, and a slight amount of monoclinic-ZrO2 at 300 °C. At higher temperatures, the crystalline alloy consists of mainly monoclinic-ZrO2, some CuO and Cu2O, and limited tetragonal-ZrO2. It is suggested that the formation of Al2O3 (at 300 °C) and CuO/Cu2O (at 350-400 °C) on the crystalline alloy is responsible for the reduced oxidation rates as compared with those of amorphous alloy. © 2002 Elsevier Science Ltd. All rights reserved.

AB - The oxidation behavior of Zr-30Cu-10Al-5Ni bulk metallic glass and its crystalline counterpart was studied over the temperature range of 300-425 °C in dry air. In general, the oxidation kinetics of both amorphous and crystalline alloys followed a two- or three-stage parabolic rate law at T≥350 °C, while at 300 °C the amorphous alloy oxidized following a linear behavior. The oxidation rate constants for the amorphous alloy are slightly higher than those for the crystalline alloy at 350-400 °C. The scale formed on the amorphous alloy consists of mainly tetragonal-ZrO2 at 300 °C, while a mixture of monoclinic-ZrO2 (m-ZrO2) and tetragonal-ZrO2 (t-ZrO2) and some CuO were detected at higher temperatures. The scale formed on the crystalline alloy, on the other hand, consists of mainly Al2O3, some tetragonal-ZrO2, and a slight amount of monoclinic-ZrO2 at 300 °C. At higher temperatures, the crystalline alloy consists of mainly monoclinic-ZrO2, some CuO and Cu2O, and limited tetragonal-ZrO2. It is suggested that the formation of Al2O3 (at 300 °C) and CuO/Cu2O (at 350-400 °C) on the crystalline alloy is responsible for the reduced oxidation rates as compared with those of amorphous alloy. © 2002 Elsevier Science Ltd. All rights reserved.

KW - B. Oxidation

KW - Diffusion

UR - https://www.scopus.com/pages/publications/0036858454

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0036858454&origin=recordpage

U2 - 10.1016/S0966-9795(02)00163-2

DO - 10.1016/S0966-9795(02)00163-2

M3 - RGC 21 - Publication in refereed journal

SN - 0966-9795

VL - 10

SP - 1265

EP - 1270

JO - Intermetallics

JF - Intermetallics

IS - 11-12

ER -

Oxidation behavior of a Zr-Cu-Al-Ni amorphous alloy in air at 300-425 °C

Abstract

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