| 新型细晶Ni3Al涂层的制备及其循环氧化行为研究 | |
| Alternative Title | Processing and cyclic oxidation of a novel fine-grained Ni_3Al coating |
| 李明菲; 彭晓; 王福会 | |
| 2011 | |
| Source Publication | 哈尔滨工程大学学报
 |
| ISSN | 1006-7043 |
| Volume | 32.0Issue:004Pages:536-540 |
| Abstract | 为提高γ＇-Ni3Al合金氧化膜与基体间的粘结力,采用Ni与Al颗粒（平均粒径为1 um）共电沉积,然后600℃真空退火2 h的方法,在普通粗晶Ni3Al合金上制备了一种平均晶粒尺寸为450 nm,孔隙率为6%的Ni3Al涂层.与普通粗晶Ni3Al合金900℃下的循环氧化行为相比,Ni3Al细晶多孔涂层表面能形成一层粘附性良好的连续Al2O3膜,抗循环氧化性能显著提高,这主要是由于涂层的细晶结构避免了氧化时空位在Al2O3膜/基材界面沉积形成大尺寸孔洞,增加了Al2O3膜/基材界面结合强度. |
| Other Abstract | To improve the adherence of the oxide scale formed on a γ＇-Ni3Al alloy,a novel Ni3Al fine-grained coating（average grain size： 450 nm） was developed by annealing an electrodeposited Ni-Al composite（average grain size of Ni and Al： 1 um） in a vacuum at 600℃ for 2h.The Ni3Al coating formed from common coarse grains had a homogeneous distribution of fine pores which gave a porosity of 6%.The cyclic oxidation resistance of the coating at 900℃ was greatly increased compared with that of a conventionally coarse-grained Ni3Al alloy（average grain size： 300 um） due to the formation of a continuous and adherent Al2O3 scale.The main reason for the increased scale adhesion lies in that the fine-grained structure improved the strength of the scale/coating interface by preventing the formation of large-sized voids. |
| Keyword | 共电沉积 退火 Ni3Al 孔洞 细晶 循环氧化 氧化膜粘附性 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:4196334 |
| Citation statistics |
Cited Times:2[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/156915 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | 李明菲,彭晓,王福会. 新型细晶Ni3Al涂层的制备及其循环氧化行为研究[J]. 哈尔滨工程大学学报,2011,32.0(004):536-540. |
| APA | 李明菲,彭晓,&王福会.(2011).新型细晶Ni3Al涂层的制备及其循环氧化行为研究.哈尔滨工程大学学报,32.0(004),536-540. |
| MLA | 李明菲,et al."新型细晶Ni3Al涂层的制备及其循环氧化行为研究".哈尔滨工程大学学报 32.0.004(2011):536-540. |
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