Comparative study of microstructural characteristics of electrospark and Nd : YAG laser epitaxially growing coatings
文献类型：期刊论文
| 作者 | Y. J. Xie ; M. C. Wang ; D. W. Huang |
| 刊名 | Applied Surface Science
 |
| 出版日期 | 2007 |
| 卷号 | 253期号:14页码:6149-6156 |
| 关键词 | electrospark deposition laser cladding epitaxial growth microstructural characteristics coating energy density processes ni-base superalloy single-crystal deposition cracking alloy |
| ISSN号 | 0169-4332 |
| 中文摘要 | As low-heat input welding processes, electrospark deposition and pulsed Nd:YAG laser cladding can be commonly used to prepare epitaxially growing coatings. However, these two processes have quite different characteristics in the energy input, the amount of materials involved, and the temperature gradient, and hence might result in dissimilar microstructural characteristics. In this paper, a comparative study has been made between microstructural characteristics in epitaxial growth coatings prepared by electrospark deposition and pulsed Nd:YAG laser cladding. Some interesting results have been achieved. Firstly, epitaxial growth coatings can be commonly achieved by these two techniques. Secondly, microstructural morphologies of these two epitaxial growth coatings are obviously different, cellular columnar structure prevails in the electrospark coating while columnar dendritic structure occupies most of the laser coating thickness, more importantly, electrospark coating remains fully columnar in the whole layer whereas laser coating tends to change from columnar to equiaxed at the top of the layer. Thirdly, electrospark coating possesses finer and more homogeneous microstructure than laser coating. (C) 2007 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33941]  |
| 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 | Y. J. Xie,M. C. Wang,D. W. Huang. Comparative study of microstructural characteristics of electrospark and Nd : YAG laser epitaxially growing coatings[J]. Applied Surface Science,2007,253(14):6149-6156. |
| APA | Y. J. Xie,M. C. Wang,&D. W. Huang.(2007).Comparative study of microstructural characteristics of electrospark and Nd : YAG laser epitaxially growing coatings.Applied Surface Science,253(14),6149-6156. |
| MLA | Y. J. Xie,et al."Comparative study of microstructural characteristics of electrospark and Nd : YAG laser epitaxially growing coatings".Applied Surface Science 253.14(2007):6149-6156. |
入库方式： OAI收割
来源：金属研究所
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