書誌事項
- タイトル別名
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- Atom Probe Microanalysis of Fifth-Generation Ni-Base Single-Crystal Superalloys
説明
The precipitation of topologically-closed-packed (TCP) phases in Ni-base single crystal superalloys was suppressed due to the Ruthenium or Iridium additions, resulting in the superior creep resistance. However, no clear explanation for such improvement in phase stability has been reported. Therefore, it's necessary to determine the underlying mechanism in the atomic scale such as short range ordering and elemental distributions in the gamma phase. The present article has investigated the effects of Ru/Ir additions on elemental distributions in gamma phase by using 3-dimensional atom probe field-ion microscopy.<br> The concentration frequencies of Re, W and Mo within Ru/Ir centered spheres including 100 atoms in gamma phases were analyzed statistically. The results showed that the concentration frequencies of Re, W and Mo within Ru/Ir centered spheres corresponded to binomial distributions. This indicated that the effects of Ru/Ir additions on elemental distributions in the gamma phase were not able to be detected under the condition employed in the present study.<br>
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 70 (2), 184-187, 2006
公益社団法人 日本金属学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282681456244096
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- NII論文ID
- 130004455681
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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
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
