| Oxidation Behavior of Graded NiCrAlYRe Coatings at 900, 1000 and 1100 A degrees C |
| X. Liu; L. Huang; Z. Bao; H. Wei; X. Sun; H. Guan; Z. Hu
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| 2009
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| 发表期刊 | Oxidation of Metals
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| ISSN | 0030-770X
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| 卷号 | 71期号:3-4页码:125-142 |
| 摘要 | A graded NiCrAlYRe coating was prepared by combining arc ion plating (AIP) with chemical vapor deposition (CVD) aluminizing. Quasi-isothermal oxidation tests of the graded NiCrAlYRe coating and the conventional NiCrAlYRe coating were performed in air at 900, 1000 and 1100 A degrees C for up to 1000, 1000 and 200 h, respectively. The results showed that the graded NiCrAlYRe coating exhibited better long time oxidation resistance than the conventional NiCrAlRe coating. This favorable oxidation behavior was attributed to the rapid formation of a protective alpha-Al(2)O(3) scale and a sufficient Al reservoir. The structures and morphologies of oxide scales varied under different oxidation conditions. theta-Al(2)O(3) was observed on both coatings during oxidation at 900 A degrees C, however, the graded coating showed more favorable conditions for theta-Al(2)O(3) to grow than the conventional coating. For the graded coating, phase transformation from theta-Al(2)O(3) to alpha-Al(2)O(3) resulted in a sharp decrease in the parabolic rate constant k(p) between 900 and 1,000 A degrees C. |
| 部门归属 | [liu, xu; huang, l.; wei, h.; sun, x. f.; guan, h. r.; hu, z. q.] chinese acad sci, inst met res, div superalloys, shenyang 110016, peoples r china. [bao, z. b.] chinese acad sci, inst met res, div surface engn mat, shenyang 110016, peoples r china.;liu, x (reprint author), chinese acad sci, inst met res, div superalloys, 72 wenhua rd, shenyang 110016, peoples r china;xliu@imr.ac.cn lhuang@imr.ac.cn zbbao@imr.ac.cn hwei@imr.ac.cn xfsun@imr.ac.cn hrguan@imr.ac.cn zqhu@imr.ac.cn
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| 关键词 | Rhenium
Oxidation
Alpha-al(2)o(3)
Theta-al(2)o(3)
Phase
Transformation
Cyclic-oxidation
Alloys
Rhenium
Microstructure
Implantation
Improvement
Resistance
Additions
Growth
Scale
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| URL | 查看原文
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| WOS记录号 | WOS:000263648900001
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/32112
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
X. Liu,L. Huang,Z. Bao,et al. Oxidation Behavior of Graded NiCrAlYRe Coatings at 900, 1000 and 1100 A degrees C[J]. Oxidation of Metals,2009,71(3-4):125-142.
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| APA |
X. Liu.,L. Huang.,Z. Bao.,H. Wei.,X. Sun.,...&Z. Hu.(2009).Oxidation Behavior of Graded NiCrAlYRe Coatings at 900, 1000 and 1100 A degrees C.Oxidation of Metals,71(3-4),125-142.
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| MLA |
X. Liu,et al."Oxidation Behavior of Graded NiCrAlYRe Coatings at 900, 1000 and 1100 A degrees C".Oxidation of Metals 71.3-4(2009):125-142.
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