Formation mechanism of laser-clad gradient thermal barrier coatings
文献类型：期刊论文
| 作者 | G. F. Chen ; Z. C. Feng ; Y. Liang |
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2000 |
| 卷号 | 10期号:1页码:92-93 |
| 关键词 | laser cladding thermal barrier coatings formation mechanisms |
| ISSN号 | 1003-6326 |
| 中文摘要 | The stratified gradient thermal barrier coatings (TBCs) were obtained by laser cladding of ZrO2 and NiCoCrAlY mixture powder. The coatings were four-layer structure: cellular dendritic ZrO2, dense ZrO2, Ni-based alloy bonding coating and substrate. The formation of the stratified TBCs was attributed to the insolubility of ZrO2 in the Ni-based alloy and the lower density of ZrO2 than that of Ni-based alloy when both of them were in melted condition. The formation of two-layered ZrO2 was related to the presence of Al in the Ni-based alloy, i) Al could be preoxidized into Al2O3 that could be segregated in the grain boundaries of ZrO2 during solidification process; ii) Al could be partially preoxidized into Al2O3, then Al and Al2O3 could be segregated simultaneously at the grain boundaries of ZrO2 during solidification process. Two formation processes were presented. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36979]  |
| 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 | G. F. Chen,Z. C. Feng,Y. Liang. Formation mechanism of laser-clad gradient thermal barrier coatings[J]. Transactions of Nonferrous Metals Society of China,2000,10(1):92-93. |
| APA | G. F. Chen,Z. C. Feng,&Y. Liang.(2000).Formation mechanism of laser-clad gradient thermal barrier coatings.Transactions of Nonferrous Metals Society of China,10(1),92-93. |
| MLA | G. F. Chen,et al."Formation mechanism of laser-clad gradient thermal barrier coatings".Transactions of Nonferrous Metals Society of China 10.1(2000):92-93. |
入库方式： OAI收割
来源：金属研究所
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