Fabrication of a nanocrystalline ni-co/coo functionally graded layer with excellent electrochemical corrosion and tribological performance | |
Wang, Liping; Zhang, Junyan; Zeng, Zhixiang; Lin, Yiming; Hu, Litian; Xue, Qunji | |
刊名 | Nanotechnology |
2006-09-28 | |
卷号 | 17期号:18页码:4614-4623 |
ISSN号 | 0957-4484 |
DOI | 10.1088/0957-4484/17/18/014 |
通讯作者 | Xue, qunji(qjxue@ns.lzb.ac.cn) |
英文摘要 | Nanocrystalline (nc) ni-co/coo functionally graded materials with excellent lubricating, high anti-corrosion and anti-wear performance were fabricated by electrodeposition and subsequent cyclic thermal oxidation and quenching. transmission electron microscopy and energy dispersive x-ray spectroscopy investigations show that bulk ni-co gradient deposits with an average grain size in the range of 13-40 nm demonstrated a graded structure transition from face-centred cubic to hexagonal close packed and graded composition changes from ni-rich to co-rich regions with the increase in deposit thickness. x-ray diffraction and x-ray photoelectron spectroscopy analysis indicated the surface layer of nc ni-co graded materials to be mainly composed of dense and ultrafine coo with a (i 11) preferred orientation. the nc ni-co/coo functionally graded materials exhibited significantly enhanced corrosion resistance in both naoh and nacl solutions and remarkably improved wear resistance and dry self-lubricating performance when compared with the nc ni and ni-co graded deposits under dry sliding wear conditions. the higher corrosion and tribological performance of nc ni-co/coo graded materials can be attributed to the graded microstructure within the deposits, the anti-corrosion barrier of a dense oxide layer and the solid lubrication effect of coo-rich tribo-surface films. |
WOS关键词 | GRAIN-SIZE ; SLIDING WEAR ; BEHAVIOR ; COATINGS ; SURFACE ; ALLOYS ; ELECTRODEPOSITION ; SULFATE ; DIAMOND ; METALS |
WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000241157000014 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2379424 |
专题 | 中国科学院大学 |
通讯作者 | Xue, Qunji |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Liping,Zhang, Junyan,Zeng, Zhixiang,et al. Fabrication of a nanocrystalline ni-co/coo functionally graded layer with excellent electrochemical corrosion and tribological performance[J]. Nanotechnology,2006,17(18):4614-4623. |
APA | Wang, Liping,Zhang, Junyan,Zeng, Zhixiang,Lin, Yiming,Hu, Litian,&Xue, Qunji.(2006).Fabrication of a nanocrystalline ni-co/coo functionally graded layer with excellent electrochemical corrosion and tribological performance.Nanotechnology,17(18),4614-4623. |
MLA | Wang, Liping,et al."Fabrication of a nanocrystalline ni-co/coo functionally graded layer with excellent electrochemical corrosion and tribological performance".Nanotechnology 17.18(2006):4614-4623. |
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