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Tailoring the microstructure,mechanical and tribocorrosion performance of (CrNbTiAlV)N_(x) high-entropy nitride films by controlling nitrogen flow

查看全文 作  者:Cunxiu [1,2]Zhang;Xiaolong [1,4]Lu;Cong [1,3]Wang;Xudong [1,3,4]Sui;Yanfang [2]Wang;Haibin [1,4]Zhou;Junying [1,3]Hao 高影响力作者 机构地区:[1]State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China;[2]School of Materials Science and Engineering,China University of Petroleum(East China),Qingdao 266580,China;[3]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;[4]Qingdao Center of Resource Chemistry and New Materials,Qingdao 266000,China高影响力机构 出  处:《Journal of Materials Science & Technology》索引2022年第12期,共11页高影响力期刊 基  金:the financial support of the National Natural Science Foundation of China(Nos.51835012 and 51975554);the National Key R&D Plan of China(No.2018YFB0703803);the program of“Science&Technology International Cooperation Demonstrative Base of Metal Surface Engineering along the Silk Road(No.2017D01003)”;CAS“Light of West China”。 摘  要:The(CrNbTiAlV)N_(x)high-entropy nitride films were fabricated by adjusting nitrogen flow via magnetron sputtering.The microstructure,mechanical,electrochemical and tribocorrosion performances of the films were studied.The results show that the films transform from amorphous to nanocrystalline structure as nitrogen flow increased.The nanocrystalline films show super hardness(>40 GPa)and adhesion strength(>50 N).The amorphous film has a pretty anti-corrosion in static corrosion,while not in tribocorrosion condition.The film deposited at nitrogen flow of 38 sccm exhibits the optimal tribocorrosion performance in artificial seawater,with the highest open circuit potential(∼−0.1 V vs.Ag/AgCl),the lowest friction coefficient(∼0.162)and wear rate(∼7.48×10^(−7)mm^(3)N^(−1)m^(−1)). 关 键 词:High-entropy nitride films Nitrogen flow Tribocorrosion performance Magnetron sputtering
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