| IN738合金上铂铝涂层的高温氧化 |
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| 引用本文： | 刘刚,牛焱,王文,吴维.IN738合金上铂铝涂层的高温氧化[J].中国腐蚀与防护学报,2001,21(1):54-58. |
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| 作者姓名： | 刘刚 牛焱 王文 吴维 |
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| 作者单位： | 中国科学院金属研究所金属腐蚀与防护国家重点实验室沈阳 110016 |
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| 摘 要： | 研究了IN738镍基高温合金的铂改性渗铝涂层在1100℃空气中的氧化行为，铂的存在，通过阻止合金元素穿过Al2O3膜向外扩散，改善Al2O3膜与基体的结合力，抑制γ′-NiAl相的形成，推迟涂层的高温退化，同时讨论铂的作用机制。
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| 关 键 词： | 高温氧化 IN738合金 铂铝深层 |
| 文章编号： | 1005-4537(2001)01-0054-05 |
OXIDATION BEHAVIOUR OF Pt-
MODIFIEDALUMINIDE COATINGS ON IN738 AT 1100 |
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| LIU Gang,NIU Yan,WANG Wen,WU Weitao.OXIDATION BEHAVIOUR OF Pt-
MODIFIEDALUMINIDE COATINGS ON IN738 AT 1100[J].Journal of Chinese Society For Corrosion and Protection,2001,21(1):54-58. |
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| Authors: | LIU Gang NIU Yan WANG Wen WU Weitao |
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| Abstract: | The oxidation of Pt-modified aluminide coatings on nickel-base superalloy IN738 has been studied in static air at 1100℃ up to 1400 h. The presence of Pt significantly suppressed the formation of γ′-Ni3Al, promoted selective oxidation of aluminum by preventing the transport of other elements in the substrate outwards to Al2O3 scale and forming purer, slowly-growing and adherent Al2O3 scale. |
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| Keywords: | platinum aluminide coating oxidation |
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