書誌事項
- タイトル別名
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- The Effect of Tungsten Addition on Steam Oxidation Behavior of the Fe-20Cr-35Ni (at％) Alloy at 1073 K
抄録
<p>This paper focuses on the effect of tungsten addition on the steam oxidation behavior of the Fe-20Cr-35Ni (at％) alloy at 1073 K. Steam oxidation tests of the W added Fe-20Cr-35Ni (at％) alloy were carried out at 1073 K in an Ar-15％H2O gas mixture for up to 604.8 ks. The oxidation resistance of the alloys was improved by adding W into the alloy. There are two effects of W on the steam oxidation behavior: the effect of solid solution and the effect of precipitation. Tungsten in the alloy is enriched as a Ni-W alloy in the matrix of the internal oxidation zone (IOZ) during oxidation. The Ni-W alloy in the IOZ may act as a diffusion barrier for oxygen and promote a continuous Cr2O3 layer. On the other hand, Fe2W precipitated in the alloy decomposes during oxidation and provides alloying elements for forming FeCr2O4 and CrWO4 in the IOZ, resulting in a continuous Cr2O3 layer formation.</p>
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 86 (7), 121-130, 2022-07-01
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390574036153997312
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- ISSN
- 18806880
- 24337501
- 00214876
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可