Investigation on hot-fatigue behaviors of gradient thermal barrier coatings by EB-PVD
文献类型：期刊论文
| 作者 | H. B. Guo ; S. K. Gong ; C. G. Zhou ; H. B. Xu |
| 刊名 | Surface & Coatings Technology
 |
| 出版日期 | 2001 |
| 卷号 | 148期号:2-3页码:110-116 |
| 关键词 | gradient thermal barrier coatings (GTBCs) electron beam physical vapor deposition (EB-PVD) thermal cycling gas-turbine failure |
| ISSN号 | 0257-8972 |
| 中文摘要 | Gradient thermal barrier coatings (GTBCs) have been produced by co-deposition of a tablet of mixtures of Al-Al2O3-ZrO2-8wt.%Y2O3 and an ZrO2-8wt.%Y2O3 ingot onto NiCoCrAlY bond coat by means of EB-PVD. Thermal cycling tests at 1323 K were conducted to evaluate the hot-fatigue behaviors of the coating. The microstructure and composition distribution of the coating- was studied by SEM with EDS, and constituent phases identified by XRD. It was found that the gradient structure significantly increased the lifetime of the coating. Due to the selective oxidation of Al in the NiCoCrAlY bond coat and a Ni3Al film on the surface of the bond coat, an Al2O3 layer was developed between the bond coat and the transition layer. Failure of the gradient coating eventually occurred by cracking near the interface between the Al2O3 and transition layer. In addition, Compared with that before the test, the gradient coating after thermal cycling tests becoming softer than that before the test. (C) 2001 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36651]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. B. Guo,S. K. Gong,C. G. Zhou,et al. Investigation on hot-fatigue behaviors of gradient thermal barrier coatings by EB-PVD[J]. Surface & Coatings Technology,2001,148(2-3):110-116. |
| APA | H. B. Guo,S. K. Gong,C. G. Zhou,&H. B. Xu.(2001).Investigation on hot-fatigue behaviors of gradient thermal barrier coatings by EB-PVD.Surface & Coatings Technology,148(2-3),110-116. |
| MLA | H. B. Guo,et al."Investigation on hot-fatigue behaviors of gradient thermal barrier coatings by EB-PVD".Surface & Coatings Technology 148.2-3(2001):110-116. |
入库方式： OAI收割
来源：金属研究所
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