Effect of Nb content on the microstructure and corrosion resistance of the sputtered Cr-Nb-N coatings | |
Department | 先进润滑与防护材料研究发展中心 |
Wang DS(王德生); Fu YL(伏彦龙); Hu M(胡明); Jiang D(姜栋); Gao XM(高晓明); Wang QQ(王琴琴); Yang J(杨军); Sun JY(孙嘉奕); Weng LJ(翁立军); Hu M(胡明); Sun JY(孙嘉奕) | |
The second department | 固体润滑国家重点实验室 |
2018 | |
Source Publication | Journal of Alloys and Compounds |
ISSN | 0925-8388 |
Volume | 740Issue:0Pages:510-518 |
Abstract | Thin Cr-Nb-N films with Nb content ranging from 5.1 to 19.5 at.% were prepared onto the AISI 440C substrates by reactive magnetron sputtering of the Cr and Nb in Ar-N2 gas mixture. The effects of the Nb content on the microstructure and the corrosion behavior in 3.5 wt% NaCl solution were investigated. All the deposited films showed a typical surface feature of granular structure. The Cr-Nb-N films with 5.1 at.% and 10.9 at.% Nb showed a duplex layers consisting of a dense and coherent layer near film-substrate interface, followed by a columnar layer differed from the uniform columnar structure for pure CrN. While for Cr-Nb-N films with higher Nb content, there was no obvious dense layer but a columnar structure. The low Nb content Cr-Nb-N coated samples showed a positive shift of both corrosion potential and the pitting potential compared to the pure CrN coated sample while the pitting potential decreased for high Nb content Cr-Nb-N coated samples. The Cr-Nb-N film with Nb content of 10.9 at.% possesses the best corrosion resistance due to the high polarization resistance resulted from the modification of the microstructure by the Nb incorporation. |
Keyword | Corrosion Protection Hard Coatings Cr-nb-n Film Magnetron Sputtering |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.jallcom.2018.01.034 |
Funding Organization | the National Natural Science Foundation of China (Grant No. 51575509 ; 51575508 ; 51505463) |
Indexed By | SCI |
If | 3.779 |
Language | 英语 |
Funding Project | PVD润滑薄膜研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23732 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Hu M(胡明); Sun JY(孙嘉奕) |
Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China |
Recommended Citation GB/T 7714 | Wang DS,Fu YL,Hu M,et al. Effect of Nb content on the microstructure and corrosion resistance of the sputtered Cr-Nb-N coatings[J]. Journal of Alloys and Compounds,2018,740(0):510-518. |
APA | Wang DS.,Fu YL.,Hu M.,Jiang D.,Gao XM.,...&Sun JY.(2018).Effect of Nb content on the microstructure and corrosion resistance of the sputtered Cr-Nb-N coatings.Journal of Alloys and Compounds,740(0),510-518. |
MLA | Wang DS,et al."Effect of Nb content on the microstructure and corrosion resistance of the sputtered Cr-Nb-N coatings".Journal of Alloys and Compounds 740.0(2018):510-518. |
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