石墨密封材料高温摩擦磨损行为及预测

闫玉涛; 李雪娟; 胡广阳; 胡添琪; 孙志礼

doi:10.13224/j.cnki.jasp.2014.02.010

石墨密封材料高温摩擦磨损行为及预测

doi: 10.13224/j.cnki.jasp.2014.02.010

1.
东北大学机械工程与自动化学院, 沈阳 110819
2.
中国航空工业集团公司沈阳黎明航空发动机(集团)有限责任公司, 沈阳 110043
3.
中国航空工业集团公司沈阳发动机设计研究所, 沈阳 110015

基金项目: 航空科学基金（20100450001）

计量
- 文章访问数: 1565
- HTML浏览量: 1
- PDF量: 1404
- 被引次数: 0
出版历程
- 收稿日期: 2012-12-06
- 刊出日期: 2014-02-28

Friction/wear behaviors and predication of graphite seal material under high temperature

1.
School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
2.
Shenyang Liming Aero-engine Group Corporation, Aviation Industry Corporation of China, Shenyang 110043
3.
Shenyang Engine Design and Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China

摘要

摘要: 利用HT-1000型高温摩擦磨损试验机研究了石墨M210密封材料高温下摩擦磨损性能，采用扫描电子显微镜（SEM）观察分析了磨损表面形貌.基于试验数据，通过灰色理论GM（1，1）建立了摩擦因数和磨损率预测模型.结果表明：石墨M210密封材料摩擦因数呈先增大再减小，而后趋于一稳定值，试验温度为450℃时，摩擦因数最小；磨损率随着试验温度升高而增大.试验温度在低于300℃，磨损表面具有明显的黏着、撕裂和无序的塑流动痕迹，高于400℃时，塑流动痕迹具有明显的方向性，出现了剥落和断裂痕迹.温度较低时，石墨材料表面主要是水汽物理吸附膜起润滑作用，随着试验温度升高，由物理吸附膜润滑逐渐转向反应膜润滑.基于试验数据建立了精度等级均为1级的摩擦因数和磨损率的预测模型.
- 石墨M210 /
- 高温 /
- 摩擦因数 /
- 磨损率 /
- 预测模型
Abstract: The tribological properties of graphite M210 seal material under high temperature were investigated on a HT-1000 high temperature friction/wear tester.The worn surface of graphite pin was observed by scanning electronic microscope (SEM).The predication model on friction coefficient and wear rate was established by grey theory GM (1, 1) based on the test data.The results show that the friction coefficient of graphite M210 seal material gradually augmented,then gradually diminished,and reached a steady value with the test time.The value of friction coefficient was minimal when the temperature was 450℃.The wear rate increased with the temperature rise.The worn surface was characterized by obvious adhesion,laceration and unordered plastic flow under temperature 300℃.The plastic flow trace had obvious directivity,and the desquamation and the rift were found on the worn surface when the temperature was above 400℃.The lubrication action was mostly dependent of the physically absorbed film by water vapor at lower temperature.With the temperature rise,the lubrication action turned to reaction film,and the lubrication of physical adsorbed film disappeared.The predication model for friction coefficient and wear rate was established based on test data by the gray theory,and the precision grade of the model was the first grade by the grade verification.
- graphite M210 /
- high temperature /
- friction coefficient /
- wear rate /
- predication model

HTML

参考文献(16)

[1]	《航空发动机设计手册》总编委会.航空发动机设计手册:第12册[M].北京:航空工业出版社, 1998.
[2]	毕中南, 董建新, 张麦仓, 等.一种航空发动机密封用镍基合金组织稳定性的实验研究及理论计算[J].航空学报, 2010, 31(3):643-649. BI Zhongnan, DONG Jianxin, ZHANG Maicang, et al.Experimental study and theoretical calculation on structure stability of a nickel-based superalloy for seals in aeroengine[J].Acta Aeronautica et Astronautica Sinica, 2010, 31(3):643-649.(in Chinese)
[3]	林基恕, 张振波.21世纪航空发动机动力传输系统的展望[J].航空动力学报, 2001, 16(2):108-114. LIN Jishu, ZHANG Zhenbo.Prospects of aeroengine power transmission system in the 21 century[J].Journal of Aerospace Power, 2001, 16(2):108-114.(in Chinese)
[4]	Pescosolido A, Dobek L.Development of high misalignment carbon seals[R].AIAA-2001-3625, 2001.
[5]	胡广阳.航空发动机密封技术应用研究[J].航空发动机, 2012, 38(3):1-4. HU Guangyang.Application research of seal technologies for aeroengine[J].Aeroengine, 2012, 38(3):1-4.(in Chinese)
[6]	Sorokina N E, Redchitz A V, Ionov S G, et al.Different exfoliated graphite as a base of sealing materials[J].Journal of Physics and Chemistry of Solids, 2006, 67(5/6):1202-1204.
[7]	SONG Yongzhong, ZHAI Gengtai, SONG Jinren, et al.Seal and wear properties of graphite from MCMBs/pitch-based carbon/phenolic-based carbon composites[J].Carbon, 2006, 44(13):2793-2796.
[8]	高亮, 梁涛.抗氧化碳-石墨密封材料的研制[J].机械工程材料, 2004, 28(7):35-36. GAO Liang, LIANG Tao.Development of oxidation-resistant sealing material of carbon-graphite[J].Material for Mechanical Engineering, 2004, 28(7):35-36.(in Chinese)
[9]	Dilip K, Ghosh A K, Bijwe J.Analysis of load-speed sensitivity of friction composites based on various synthetic graphites[J].Wear, 2009, 266(1/2):266-274.
[10]	Hirani H, Goilkar S S.Formation of transfer layer and its effect on friction and wear of carbon-graphite face seal under dry, water and steam environments[J].Wear, 2009, 266(11/12):1141-1154.
[11]	MA Wenlin, LU Jinjun, WANG Jingbo.Sliding friction and wear of Cu-graphite against 2024, AZ91D and Ti6Al4V at different speeds[J].Wear, 2009, 266(11/12):1072-1081.
[12]	WANG Haidou, XU Binshi, LIU Jiajun, et al.Microstructures and friction-reduction performances of the graphite coatings[J].Materials Letters, 2005, 59(13):1683-1686.
[13]	ZHANG Xinrui, PEI Xianqing, WANG Qihua.Friction and wear studies of polyimide composites filled with short carbon fibers and graphite and micro SiO₂[J].Materials and Design, 2009, 30(10):4414-4420.
[14]	CAI Bin, TAN Yefa, WANG Xiaolong, et al.Tribological properties of Ni-based alloy composite coating modified by both graphite and TiC particles[J].Transaction of Nonferrous Metals Society of China, 2011, 21(11):2426-2432.
[15]	Yen B K.Roles of oxygen in lubrication and wear of graphite in dusting and ambient conditions[J].Journal of Materials Science Letters, 1995, 14(21):1481-1483.
[16]	刘思峰, 党耀国, 方志耕, 等.灰色系统理论及其应用[M].5版.北京:科学出版社, 2010.