| The behavior of MCrAlY coatings on Ni3Al-base superalloy |
| B. Wang; J. Gong; C. Sun; R. F. Huang; L. S. Wen
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| 2003
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| 发表期刊 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
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| ISSN | 0921-5093
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| 卷号 | 357期号:1-2页码:39-44 |
| 摘要 | This work is concerned with NiCrAlY and NiCoCrAlY coatings deposited on the superalloy IC-6 (Ni3Al-base superalloy) by arc ion plating (AIP). The results indicated that the presence of Al and Mo in alloy IC-6 impeded Cr atoms moving from coatings to substrates during the deposition process. As a consequence, the distribution of Cr is well proportioned in both NiCrAlY and NiCoCrAlY coatings. Vacuum heat treatment drastically increased diffusivities and the coating became more uniform. The interdiffusion also led to the phase transformation in the coatings. Although gamma'-Ni3Al and gamma-Ni were still the major phases in the coating, their lattice constant a(0) decreased. The results of isothermal oxidation showed that the oxidation behavior of coatings obeyed the parabolic rate law. The oxidation resistance was not influenced very much by the presence of Co in the NiCrAlY coating at 900 degreesC static atmosphere. NiCoCrAlY coating had poorer oxidation resistance than NiCrAlY coating when they were exposed at 1000 degreesC. (C) 2003 Elsevier Science B.V. All rights reserved. |
| 部门归属 | chinese acad sci, inst met res, dept surface engn mat, shenyang 110016, peoples r china. hahn meitner inst berlin gmbh, d-14109 berlin, germany.;sun, c (reprint author), chinese acad sci, inst met res, dept surface engn mat, 72 wenhua rd, shenyang 110016, peoples r china
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| 关键词 | Mcraly Coating
Superalloy Ic-6
Vacuum Heat Treatment
Isothermal
Oxidation
Temperature Oxidation
Microstructure
Yttrium
Surface
Alloys
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| URL | 查看原文
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| WOS记录号 | WOS:000184767100006
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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/321006/36034
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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 |
B. Wang,J. Gong,C. Sun,et al. The behavior of MCrAlY coatings on Ni3Al-base superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2003,357(1-2):39-44.
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| APA |
B. Wang,J. Gong,C. Sun,R. F. Huang,&L. S. Wen.(2003).The behavior of MCrAlY coatings on Ni3Al-base superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,357(1-2),39-44.
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| MLA |
B. Wang,et al."The behavior of MCrAlY coatings on Ni3Al-base superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 357.1-2(2003):39-44.
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