章凡勇,闫牧夫,何继宁

• 1:金属精密热加工国家级重点实验室哈尔滨工业大学材料科学与工程学院
• 2:河北工业大学能源装备材料技术研究院天津市材料层状复合与界面控制技术重点实验室

摘要(Abstract)：

通过镀/渗复合改性方法在5083铝合金表面原位制备出梯度复合层,利用闭合场非平衡磁控溅射离子镀在5083铝合金表面沉积厚度约为6.0μm的Ti膜,然后将镀钛5083铝合金在490℃进行等离子渗氮8 h,研究了不同渗氮气氛(微量N,N-H比为0.05∶0.3,0.2∶0.3和0.3∶0.3)对复合层组织结构和力学性能的影响。结果表明:复合层由双层结构组成,即外层TiN_(0.3)和靠近铝基体一侧的铝基金属化合物Al_(18)Ti_2Mg_3,不同渗氮气氛下表层TiN_(0.3)均出现(002)晶面择优生长,在N-H比为0.2∶0.3时,复合层的表面硬度高达880 HV,相比于未处理的基体铝合金硬度(98 HV)提高了约9倍。复合层的摩擦系数明显低于未处理态,并且磨损率显著降低。

关键词(KeyWords)： 5083铝合金;等离子渗氮;组织结构;摩擦磨损

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(U1537201)

作者(Author): 章凡勇,闫牧夫,何继宁

DOI: 10.13289/j.issn.1009-6264.2017.03.027

参考文献(References)：

• [1]Visuttipitukul P,Aizawa T.Wear of plasma-nitrided aluminum alloys[J].Wear,2005,259:482-489.
• [2]Stock H R,Jarms C,Seidel F,et al.Fundamental and applied aspects of the plasma-assisted nitriding process for aluminium and its alloys[J].Surface and Coatings Technology,1997,(94/95):237-254.
• [3]廖家轩,夏立芳,孙跃.氮和碳等离子体基离子注入铝合金表面氮化铝/类金刚石碳膜改性层的摩擦学特性[J].摩擦学学报,2001,21(5):324-328.LIAO Jia-xuan,XIA Li-fang,SUN Yue.The tribological properties of Al N/DLC modifying layer on aluminum alloy implanted with nitrogen and carbon plasma based ion implantation[J].Tribology,2001,21(5):324-328.
• [4]Figueroa R,Abreu C M,Cristóbal M J,et al.Effect of nitrogen and molybdenum ion implantation in the tribological behavior of AA7075 aluminum alloy[J].Wear,2012,276/277:53-60.
• [5]Jagielskia J,Piatkowska A,Aubert P,et al.Effects of high dose nitrogen implantation into aluminum[J].Vacuum,2003,(70):147-152.
• [6]Diesselberg M,Stock H R,Mayr P.Corrosion protection of magnetron sputtered Ti N coatings deposited on high strength aluminium alloys[J].Surface and Coatings Technology,2004,177/178:399-403.
• [7]张礼平,李剑锋,李国卿,等.2024铝合金表面镀Cr Nx多层膜的研究[J].真空科学与技术学报,2008,28(5):445-449.ZHANG Li-ping,LI Jian-feng,LI Guo-qing,et al.Cr Nx coatings by multi-arc ion plating on 2024 Al alloy substrates[J].Chinese Journal of Vacuum Science and Technology,2008,28(5):445-449.
• [8]Lugscheider E,Krimer G,Barimani C,et al.PVD coatings on aluminium substrates[J].Surface and Coatings Technology,1995,74/75:497-502.
• [9]Yang W,Jiang B L,Wang A Y,et al.Effect of negatively charged ions on the formation of microarc oxidation coating on 2024 aluminium alloy[J].J Mater Sci Technol,2012,28:707-712.
• [10]Ding H Y,Dai Z D,Skuiry S C,et al.Corrosion wear behaviors of micro-arc oxidation coating of Al2O3on 2024 Al in different aqueous environments at fretting contact[J].Tribology International,2010,43(5/6):868-875.
• [11]Daemi N,Mahboubi F,Alimadadi H.Effect of plasma nitriding on electrodeposited Ni-Al composite coating[J].Mater Des,2011,32:971-975.
• [12]Liu Z D,Zhang X C,Xuan F Z,et al.In situ synthesis of Ti N/Ti3Al intermetallic matrix composite coatings on Ti6Al4V alloy[J].Mater Des,2012,37:268-273.
• [13]Zhang F Y,Yan M F.Microstructure and mechanical properties of multiphase coating produced by plasma nitriding Ti coated GB-5083 aluminum alloy[J].Surface and Coatings Technology,2014,253(9):268-276.

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