Volume 35 Issue 5
May  2020
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CHEN Feifei, LU Wenzhuang, CHEN Meng. Electric field and flow field of LPES surface strengthening of titanium alloy gear[J]. Journal of Aerospace Power, 2020, 35(5): 928-937. doi: 10.13224/j.cnki.jasp.2020.05.004
Citation: CHEN Feifei, LU Wenzhuang, CHEN Meng. Electric field and flow field of LPES surface strengthening of titanium alloy gear[J]. Journal of Aerospace Power, 2020, 35(5): 928-937. doi: 10.13224/j.cnki.jasp.2020.05.004

Electric field and flow field of LPES surface strengthening of titanium alloy gear

doi: 10.13224/j.cnki.jasp.2020.05.004
  • Received Date: 2019-10-25
  • Publish Date: 2020-05-28
  • For the problem of forming stable arc discharge on the complex surface of the TC4 titanium alloy gears treated by liquid plasma electrolytic saturation (LPES), a simulation model of the gear surface strengthening system was established, the electric field and flow field were simulated based on simulation analysis and experimental verification methods. The discharge mechanism on the complex surface of the gear was determined. The effects of electrode system parameters and inlet velocity on the formation of the strengthening layer were studied. Results indicated that the fundamental reason for the difficulty of effective discharge on the gear surface was attributable to the uneven electric field. The uniformity of the electric field and the strengthening layer were better when the meshing anode was used. Too small electrode distance was likely to cause short circuit of strengthening system, and too large electrode distance could reduce uniformity and thickness of strengthening layer. Appropriate electrolyte flow rate is important for both the stability of the discharge and the thickness of the strengthening layer. Compared with the untreated substrate, the surface wear resistance of the strengthened titanium alloy gear has been significantly improved.

     

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  • [1]
    刘奇先,刘杨,高凯.钛合金的研究进展与应用[J].航天制造技术,2011(4):45-55. LIU Qixian,LIU Yang,GAO Kai.Research progress and application of titanium alloys[J].Aerospace Manufacturing Technology,2011(4):45-55.(in Chinese)
    [2]
    BOYER R R.An overview on the use of titanium in the aerospace industry[J].Materials Science and Engineering A,1996,213(1/2):103-114.
    [3]
    PANG J,LU W Z,LIU W,et al.Diffusion of carbon and nitrogen in TC4 titanium alloy plasma electrolytic saturation[J].Chemical Physics,2018,505:12-18.
    [4]
    罗秋生,李世峰,裴会平.航空发动机钛火预防技术研究的进展[J].航空动力学报,2012,27(12):2763-2768. LUO Qiusheng,LI Shifeng,PEI Huiping.Progress in titanium fire resistant technology for aero-engine[J].Journal of Aerospace Power,2012,27(12):2763-2768.(in Chinese)
    [5]
    陈纪民.不同材质的齿轮发展现状[J].热加工工艺,2013,42(12):36-40. CHEN Jimin.Research status of gear made with different material[J].Hot Working Technology,2013,42(12):36-40.(in Chinese)
    [6]
    WEI Y,LI H,GAO H.Gear failure forms and processing technology improvement[J].Applied Mechanics and Materials,2013,340:17-20.
    [7]
    CHEN F F,YU S X,LU W Z,et al.Effect of rare earth elements on plasma electrolytic carbonitriding of Ti-6Al-4V alloy[J].Materials Science and Technology,2019,35(18):2275-2283.
    [8]
    DONG H,BLOYCE A,MORTON P H,et al.Surface engineering to improve tribological performance of Ti-6Al-4V[J].Surface Engineering,1997,13(5):402-406.
    [9]
    BELKIN P N,BORISOV A M,KUSMANOV S A.Plasma electrolytic saturation of titanium and its alloys with light elements[J].Journal of Surface Investigation:X-ray,Synchrotron and Neutron Techniques,2016,10(3):516-535.
    [10]
    李杰,沈德久,王玉林,等.液相等离子体电解渗透技术[J].金属热处理,2005,30(9):63-67. LI Jie,SHEN Dejiu,WANG Yulin,et al.Plasma electrolytic saturation technique in solution[J].Heat Treatment of Metals,2005,30(9):63-67.(in Chinese)
    [11]
    SKAKOV M,KURBANBEKOV S,SCHEFFLER M,et al.Modification of stainless steels surface layers by nitriding and carbonitriding[J].Advanced Materials Research,2013,712/713/714/715(1):12-16.
    [12]
    田占军,李杰,沈德久,等.液相等离子体电解渗碳、渗氮及其碳氮共渗技术[J].电镀与涂饰,2006,25(2):53-56. TIAN Zhanjun,LI Jie,SHEN Dejiu,et al.Liquid phase plasma electrolytic carburizing,nitriding,carbonitriding technique[J].Electroplating and Finishing,2006,25(2):53-56.(in Chinese)
    [13]
    LI X M,HAN Y.Mechanical properties of Ti(C0.7N0.3) film produced by plasma electrolytic carbonitriding of Ti6Al4V alloy[J].Applied Surface Science,2008,254(20):6350-6357.
    [14]
    DONG Y X,CHEN Y S,CHEN Q,et al.Characterization and blood compatibility of TiCxN1-x hard coating prepared by plasma electrolytic carbonitriding[J].Surface and Coatings Technology,2007,201(21):8789-8795.
    [15]
    武立胜,吕新生,张晔,等.基于Fluent连杆模具电解加工过程的三维流场分析[J].机械科学与技术,2011,30(9):1443-1445. WU Lisheng,L Xinsheng,ZHANG Ye,et al.Fluent based numerical simulation of three-dimensional flow fieldof electrochemical machining for a connecting rod mold[J].Mechanical Science and Technology for Aerospace Engineering,2011,30(9):1443-1445.(in Chinese)
    [16]
    崔庆忠,邵文英,王风云.不同温度下水-甲酰胺体系的密度与粘度[J].华东工学院学报,1992,65(5):88-91. CUI Qingzhong,SHAO Wenying,WANG Fengyun.Densities and viscosities of H2O-HCONH2 mixtures at different temperatures[J].Journal of East China Institute of Technology,1992,65(5):88-91.(in Chinese)
    [17]
    YEROKHIN A L,NIE X,LEYLAND A,et al.Plasma electrolysis for surface engineering[J].Surface and Coatings Technology,1999,122(2/3):73-93.
    [18]
    SHADRIN S Y,ZHIROV A V,BELKIN P N.Formation regularities of gaseous vapour plasma envelope in electrolyzer[J].Surface Engineering and Applied Electrochemistry,2016,52(1):110-116.
    [19]
    乔宝蓉,黄洁雯,樊新民,等.等离子体电解处理中工件表面温度计算与测量[J].材料热处理学报,2015,36(7):241-244.
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