Effect of Zr-content on the oxidation and phase transformation of Zr-base amorphous alloys in air

H. H. Hsieh; W. Kai; R. T. Huang; M. X. Pan; T. G. Nieh

doi:10.1016/j.intermet.2004.04.024

Effect of Zr-content on the oxidation and phase transformation of Zr-base amorphous alloys in air

H. H. Hsieh
, W. Kai
, R. T. Huang
, M. X. Pan
, T. G. Nieh

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

39 Citations (Scopus)

Abstract

The oxidation and phase transformation of three Zr-base amorphous alloys, Zr-20Cu-12Ni-10Al-5Ti (Zr53), Zr-30Cu-10Al-5Ni (Zr55), and Zr-15Cu-10Al-10Ni (Zr65), were studied over the temperature range of 300-500 °C in dry air. Oxidation kinetics of these alloys generally followed a parabolic rate law at T>350°C, but linear kinetics was obeyed at 300-350 °C. It was found that Zr65 was the most oxidation-resistant alloy among the three alloys studied. Scales formed on the alloys during oxidation consisted of mainly tetragonal- and monoclinic-ZrO₂ (t- and m-ZrO₂), and minor CuO and NiO (only detected in Zr53). The amount of m-ZrO₂ formed strongly depends upon the alloy composition, exposure time, and temperature. TEM results showed that a significant amount of nano-grained Zr₂Cu polycrystals formed beneath the amorphous oxide-scale in Zr53, indicating phase transformation has taken place. By contrast, Zr55 and Zr65 amorphous substrates transformed into Zr₂Cu and ZrAl after oxidation. © 2004 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1089-1096
Journal	Intermetallics
Volume	12
Issue number	10-11 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.intermet.2004.04.024
Publication status	Published - Oct 2004
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. Glasses, metallic
B. Oxidation
B. Phase transformation

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title = "Effect of Zr-content on the oxidation and phase transformation of Zr-base amorphous alloys in air",

abstract = "The oxidation and phase transformation of three Zr-base amorphous alloys, Zr-20Cu-12Ni-10Al-5Ti (Zr53), Zr-30Cu-10Al-5Ni (Zr55), and Zr-15Cu-10Al-10Ni (Zr65), were studied over the temperature range of 300-500 °C in dry air. Oxidation kinetics of these alloys generally followed a parabolic rate law at T>350°C, but linear kinetics was obeyed at 300-350 °C. It was found that Zr65 was the most oxidation-resistant alloy among the three alloys studied. Scales formed on the alloys during oxidation consisted of mainly tetragonal- and monoclinic-ZrO2 (t- and m-ZrO2), and minor CuO and NiO (only detected in Zr53). The amount of m-ZrO2 formed strongly depends upon the alloy composition, exposure time, and temperature. TEM results showed that a significant amount of nano-grained Zr2Cu polycrystals formed beneath the amorphous oxide-scale in Zr53, indicating phase transformation has taken place. By contrast, Zr55 and Zr65 amorphous substrates transformed into Zr2Cu and ZrAl after oxidation. {\textcopyright} 2004 Elsevier Ltd. All rights reserved.",

keywords = "B. Glasses, metallic, B. Oxidation, B. Phase transformation",

author = "Hsieh, \{H. H.\} and W. Kai and Huang, \{R. T.\} and Pan, \{M. X.\} and Nieh, \{T. G.\}",

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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pages = "1089--1096",

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TY - JOUR

T1 - Effect of Zr-content on the oxidation and phase transformation of Zr-base amorphous alloys in air

AU - Hsieh, H. H.

AU - Kai, W.

AU - Huang, R. T.

AU - Pan, M. X.

AU - Nieh, T. G.

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 - 2004/10

Y1 - 2004/10

N2 - The oxidation and phase transformation of three Zr-base amorphous alloys, Zr-20Cu-12Ni-10Al-5Ti (Zr53), Zr-30Cu-10Al-5Ni (Zr55), and Zr-15Cu-10Al-10Ni (Zr65), were studied over the temperature range of 300-500 °C in dry air. Oxidation kinetics of these alloys generally followed a parabolic rate law at T>350°C, but linear kinetics was obeyed at 300-350 °C. It was found that Zr65 was the most oxidation-resistant alloy among the three alloys studied. Scales formed on the alloys during oxidation consisted of mainly tetragonal- and monoclinic-ZrO2 (t- and m-ZrO2), and minor CuO and NiO (only detected in Zr53). The amount of m-ZrO2 formed strongly depends upon the alloy composition, exposure time, and temperature. TEM results showed that a significant amount of nano-grained Zr2Cu polycrystals formed beneath the amorphous oxide-scale in Zr53, indicating phase transformation has taken place. By contrast, Zr55 and Zr65 amorphous substrates transformed into Zr2Cu and ZrAl after oxidation. © 2004 Elsevier Ltd. All rights reserved.

AB - The oxidation and phase transformation of three Zr-base amorphous alloys, Zr-20Cu-12Ni-10Al-5Ti (Zr53), Zr-30Cu-10Al-5Ni (Zr55), and Zr-15Cu-10Al-10Ni (Zr65), were studied over the temperature range of 300-500 °C in dry air. Oxidation kinetics of these alloys generally followed a parabolic rate law at T>350°C, but linear kinetics was obeyed at 300-350 °C. It was found that Zr65 was the most oxidation-resistant alloy among the three alloys studied. Scales formed on the alloys during oxidation consisted of mainly tetragonal- and monoclinic-ZrO2 (t- and m-ZrO2), and minor CuO and NiO (only detected in Zr53). The amount of m-ZrO2 formed strongly depends upon the alloy composition, exposure time, and temperature. TEM results showed that a significant amount of nano-grained Zr2Cu polycrystals formed beneath the amorphous oxide-scale in Zr53, indicating phase transformation has taken place. By contrast, Zr55 and Zr65 amorphous substrates transformed into Zr2Cu and ZrAl after oxidation. © 2004 Elsevier Ltd. All rights reserved.

KW - B. Glasses, metallic

KW - B. Oxidation

KW - B. Phase transformation

UR - https://www.scopus.com/pages/publications/4644292843

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-4644292843&origin=recordpage

U2 - 10.1016/j.intermet.2004.04.024

DO - 10.1016/j.intermet.2004.04.024

M3 - RGC 21 - Publication in refereed journal

SN - 0966-9795

VL - 12

SP - 1089

EP - 1096

JO - Intermetallics

JF - Intermetallics

IS - 10-11 SPEC. ISS.

ER -

Effect of Zr-content on the oxidation and phase transformation of Zr-base amorphous alloys in air

Abstract

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