Role of Iridium in Hot Corrosion Resistance of Pt-Ir Modified Aluminide Coatings with Na2SO4-NaCl Salt at 1173K
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- Wu Ying-Na
- Coating Materials Group, Composites and Coatings Center, National Institute for Materials Science (NIMS)
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- Yamaguchi Akihiro
- Coating Materials Group, Composites and Coatings Center, National Institute for Materials Science (NIMS) Graduate School of Engineering, Division of Materials Science and Engineering, Shibaura Institute of Technology
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- Murakami Hideyuki
- Coating Materials Group, Composites and Coatings Center, National Institute for Materials Science (NIMS)
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- Kuroda Seiji
- Coating Materials Group, Composites and Coatings Center, National Institute for Materials Science (NIMS)
書誌事項
- タイトル別名
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- Role of Iridium in Hot Corrosion Resistance of Pt-Ir Modified Aluminide Coatings with Na<SUB>2</SUB>SO<SUB>4</SUB>-NaCl Salt at 1173 K
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Platinum-iridium films (Ir=0,32,46,83,100 at%) were deposited on the nickel-base single crystal superalloy TMS-82+ through magnetron sputtering. After annealing and aluminizing, the Pt-Ir modified aluminide coatings mainly consisted of PtAl2 and β-(Ni,Pt,Ir)Al phases. Hot corrosion resistance of the different Pt-Ir modified aluminide coatings was evaluated through exposure at 1173 K with the Na2SO4+10 mass%NaCl salt coatings. The lowest mass gain (2.99×10−3 kg/m2, after 100 h) was observed for the Pt-46Ir aluminide coating, which formed the dense and continuous protective Al2O3 scale on the surface. The effect of Ir on the corrosion resistance of Pt-Ir modified aluminide coatings was discussed from three aspects—phase transformation, protective scale formation and the role of a Pt-Ir enriched layer.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 47 (8), 1918-1921, 2006
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
- 1390001204251525632
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- NII論文ID
- 130004453234
- 10019296804
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 8021796
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可