Effect of minor addition of Zr on the oxidation behavior of Ti-Cu metallic glasses

Sung Hyun Park; Ka Ram Lim; Min Young Na; Kang Cheol Kim; Won Tae Kim; Do Hyang Kim

doi:10.1007/s12540-016-5587-7

Effect of minor addition of Zr on the oxidation behavior of Ti-Cu metallic glasses

Sung Hyun Park, Ka Ram Lim, Min Young Na, Kang Cheol Kim, Won Tae Kim, Do Hyang Kim

Department of Materials Science and Engineering

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

6 Citations (Scopus)

Abstract

The oxidation behavior of (TiCu)_100-XZr_X (x=3, 5, 7 at%) amorphous alloy during continuous heating up to 1073 K has been investigated. The weight-gain due to oxidation occurs in a two-step mode. The first-step oxidation (630~730 K) is associated with supercooled liquid region. The oxidation layer consists of intermixed TiO₂ + ZrO₂ layer at outer side and amorphous oxide layer at inner side. The oxidation rate at the second-step above 880 K becomes significantly different depending on the Zr content. In x=3 alloy, the oxidation layer consists of TiO₂ layer at outer side, intermixed TiO₂ + ZrO₂ layer, and Ti₃Cu₃O layer at inner side. As the fraction of ZrO₂ increases in x=5 and 7 alloys, the growth of oxide layer is accelerated due to provision of easier diffusion path in the intermixed oxide layer, forming intermixed multi-phase (TiO₂ + ZrO₂ + Ti₃Cu₃O + Cu₅₁Zr₁₄) oxide layer.

Original language	English
Pages (from-to)	229-235
Number of pages	7
Journal	Metals and Materials International
Volume	22
Issue number	2
DOIs	https://doi.org/10.1007/s12540-016-5587-7
Publication status	Published - 2016 Mar 1

Bibliographical note

Publisher Copyright:
© 2016, The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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title = "Effect of minor addition of Zr on the oxidation behavior of Ti-Cu metallic glasses",

abstract = "The oxidation behavior of (TiCu)100-XZrX (x=3, 5, 7 at%) amorphous alloy during continuous heating up to 1073 K has been investigated. The weight-gain due to oxidation occurs in a two-step mode. The first-step oxidation (630~730 K) is associated with supercooled liquid region. The oxidation layer consists of intermixed TiO2 + ZrO2 layer at outer side and amorphous oxide layer at inner side. The oxidation rate at the second-step above 880 K becomes significantly different depending on the Zr content. In x=3 alloy, the oxidation layer consists of TiO2 layer at outer side, intermixed TiO2 + ZrO2 layer, and Ti3Cu3O layer at inner side. As the fraction of ZrO2 increases in x=5 and 7 alloys, the growth of oxide layer is accelerated due to provision of easier diffusion path in the intermixed oxide layer, forming intermixed multi-phase (TiO2 + ZrO2 + Ti3Cu3O + Cu51Zr14) oxide layer.",

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note = "Publisher Copyright: {\textcopyright} 2016, The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht.",

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doi = "10.1007/s12540-016-5587-7",

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AU - Park, Sung Hyun

AU - Lim, Ka Ram

AU - Na, Min Young

AU - Kim, Kang Cheol

AU - Kim, Won Tae

AU - Kim, Do Hyang

PY - 2016/3/1

Y1 - 2016/3/1

N2 - The oxidation behavior of (TiCu)100-XZrX (x=3, 5, 7 at%) amorphous alloy during continuous heating up to 1073 K has been investigated. The weight-gain due to oxidation occurs in a two-step mode. The first-step oxidation (630~730 K) is associated with supercooled liquid region. The oxidation layer consists of intermixed TiO2 + ZrO2 layer at outer side and amorphous oxide layer at inner side. The oxidation rate at the second-step above 880 K becomes significantly different depending on the Zr content. In x=3 alloy, the oxidation layer consists of TiO2 layer at outer side, intermixed TiO2 + ZrO2 layer, and Ti3Cu3O layer at inner side. As the fraction of ZrO2 increases in x=5 and 7 alloys, the growth of oxide layer is accelerated due to provision of easier diffusion path in the intermixed oxide layer, forming intermixed multi-phase (TiO2 + ZrO2 + Ti3Cu3O + Cu51Zr14) oxide layer.

AB - The oxidation behavior of (TiCu)100-XZrX (x=3, 5, 7 at%) amorphous alloy during continuous heating up to 1073 K has been investigated. The weight-gain due to oxidation occurs in a two-step mode. The first-step oxidation (630~730 K) is associated with supercooled liquid region. The oxidation layer consists of intermixed TiO2 + ZrO2 layer at outer side and amorphous oxide layer at inner side. The oxidation rate at the second-step above 880 K becomes significantly different depending on the Zr content. In x=3 alloy, the oxidation layer consists of TiO2 layer at outer side, intermixed TiO2 + ZrO2 layer, and Ti3Cu3O layer at inner side. As the fraction of ZrO2 increases in x=5 and 7 alloys, the growth of oxide layer is accelerated due to provision of easier diffusion path in the intermixed oxide layer, forming intermixed multi-phase (TiO2 + ZrO2 + Ti3Cu3O + Cu51Zr14) oxide layer.

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Effect of minor addition of Zr on the oxidation behavior of Ti-Cu metallic glasses

Abstract

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