On Catastrophic Oxdation of Ti-Zr Alloys
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- Nakayama Tadayuki
- Metallurgical Engineering Department, School of Science and Engineering, Waseda University
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- Sh\={o}ji Fumio
- Mitsubishi Metal Mining Co., Ltd.
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- Yagi Eiichi
- Student of Graduate School, University of Tokyo
Bibliographic Information
- Other Title
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- Ti-Zr合金の異常酸化について
- Ti-Zr ゴウキン ノ イジョウ サンカ ニ ツイテ
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Abstract
The present authors studied oxidation behaviors of Ti-Zr alloys (ca.5∼90 wt%), using the thermo-balance, X-ray diffraction, electron microscope and optical microscopic methods. The catastrophic oxidation was observed in alloys containing ca. 50∼90 wt%Zr oxidized in air at 700° or 900°C for 30 min or 2 hr. It was verified experimentally that β-phases (cubic type crystals) remaining in substrata were more preferentially oxidized than α-phases (hexagonal close-packed crystals) in the earliest stage of oxidation (500°C, 5 min) of the alloys showing the catastrophic oxidation at 700° or 900°C, and moreover, that these alloys showed breakaway phenomena of the surface oxide scales. The present studies also clarified by X-ray diffraction and optical microscopic observations that the surfaces were mainly covered with porous TiO2ZrO2 or TiO2ZrO2 and ZrO2 layers in the alloy showing the catastrophic oxidation.
Journal
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- Journal of the Japan Institute of Metals and Materials
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Journal of the Japan Institute of Metals and Materials 27 (6), 289-292, 1963
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390001206481816192
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- NII Article ID
- 40018258258
- 130007333424
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- NII Book ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL BIB ID
- 9153698
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed