Influence of Cr addition on the interface purification of vacuum brazed NiCr-Cr3C2 coatings on single crystal superalloy
文献类型：期刊论文
| 作者 | Wang, D.; Wang, W. Q.; Chen, X. G.; Chi, C. T.; Wang, M. S.; Han, X.; Xie, Y. J.; Xie, YJ (reprint author), Jiangxi Acad Sci, Inst Appl Phys, Nanchang 330029, Jiangxi, Peoples R China.; Xie, YJ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | ELSEVIER SCIENCE SA
 |
| 出版日期 | 2017-09-25 |
| 卷号 | 325页码:200-209 |
| ISSN号 | 0257-8972 |
| 关键词 | Vacuum Brazecoating Single Crystal Superalloy Interface Purification Thermal Fatigue Cycling Nicr-cr3c2 Coating |
| 英文摘要 | In order to improve the high temperature wear- and oxidation resistance of single crystal superalloy, NiCr-Cr3C2 coatings were vacuum brazed on the surface. Different weight ratios of Cr were added into the coatings to control the diffusion of Si and C into the base metal, which would be harmful to the base metal stability. The results show that, when no Cr was added into the coatings, a layer of Ni3Si phase at the interface and MC precipitates in base metal were produced. With the increase of the Cr addition, the coating/base metal interface was gradually purified. The Ni3Si layer and the MC precipitates disappeared when the Cr addition increased to 30 wt% and an interface was clearly presented with the 'gamma' phases on both sides epitaxially growing on some extent. After 200 thermal fatigue cycles, the total crack lengths were measured, which decreased with increasing Cr addition, indicating that the thermal fatigue resistance was improved. (C) 2017 Elsevier B.V. All rights reserved.; In order to improve the high temperature wear- and oxidation resistance of single crystal superalloy, NiCr-Cr3C2 coatings were vacuum brazed on the surface. Different weight ratios of Cr were added into the coatings to control the diffusion of Si and C into the base metal, which would be harmful to the base metal stability. The results show that, when no Cr was added into the coatings, a layer of Ni3Si phase at the interface and MC precipitates in base metal were produced. With the increase of the Cr addition, the coating/base metal interface was gradually purified. The Ni3Si layer and the MC precipitates disappeared when the Cr addition increased to 30 wt% and an interface was clearly presented with the 'gamma' phases on both sides epitaxially growing on some extent. After 200 thermal fatigue cycles, the total crack lengths were measured, which decreased with increasing Cr addition, indicating that the thermal fatigue resistance was improved. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | Materials Science, Coatings & Films ; Physics, Applied |
| 语种 | 英语 |
| 公开日期 | 2018-01-10 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79085]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xie, YJ (reprint author), Jiangxi Acad Sci, Inst Appl Phys, Nanchang 330029, Jiangxi, Peoples R China.; Xie, YJ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, D.,Wang, W. Q.,Chen, X. G.,et al. Influence of Cr addition on the interface purification of vacuum brazed NiCr-Cr3C2 coatings on single crystal superalloy[J]. ELSEVIER SCIENCE SA,2017,325:200-209. |
| APA | Wang, D..,Wang, W. Q..,Chen, X. G..,Chi, C. T..,Wang, M. S..,...&Xie, YJ .(2017).Influence of Cr addition on the interface purification of vacuum brazed NiCr-Cr3C2 coatings on single crystal superalloy.ELSEVIER SCIENCE SA,325,200-209. |
| MLA | Wang, D.,et al."Influence of Cr addition on the interface purification of vacuum brazed NiCr-Cr3C2 coatings on single crystal superalloy".ELSEVIER SCIENCE SA 325(2017):200-209. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。