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多孔YSZ涂层的制备和可磨耗性

丁坤英, 于建海, 高元

丁坤英, 于建海, 高元. 多孔YSZ涂层的制备和可磨耗性[J]. 焊接学报, 2017, 38(1): 56-60.
引用本文: 丁坤英, 于建海, 高元. 多孔YSZ涂层的制备和可磨耗性[J]. 焊接学报, 2017, 38(1): 56-60.
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DING Kunying, YU Jianhai, GAO Yuan. Abradable properties of porous YSZ coatings[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(1): 56-60.
Citation: DING Kunying, YU Jianhai, GAO Yuan. Abradable properties of porous YSZ coatings[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(1): 56-60.
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多孔YSZ涂层的制备和可磨耗性

  • 中国民航大学 天津市民用航空器适航与维修重点实验室, 天津 300300

基金项目: 国家自然科学基金青年基金资助项目（51501222）；中央高校基本科研业务经费中国民航大学专项基金资助项目（3122015L001）；中国民航局科技计划资助项目（MHRD20160106）

Abradable properties of porous YSZ coatings

  • Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, School of Materials Science and Engineering, Civil Aviation University of China, Tianjin 300300, China

摘要

    摘要
  • 摘要: 采用等离子喷涂方法在Ni718合金表面制备氧化钇稳定氧化锆（YSZ）涂层，通过在YSZ喷涂粉末中分别加入10%，30%和50%（质量分数，%）表面包覆TiO2的聚苯酯材料，涂层平均孔隙率从原来的2.1%分别提高到12.3%，28.5%和29.7%，孔隙的平均直径从原来的4.2 μm分别变为14.4，18.5和25.4 μm.随着孔隙的增多，涂层的表面洛氏硬度下降，同时涂层在刮磨过程中的摩擦力和摩擦系数下降.当孔隙率由2.1%上升到30%左右时，涂层在刮磨过程中的磨耗质量上升3倍左右，相对应的转动销质量损失下降约50%.结果表明，孔隙率的提高使得涂层的可磨耗性上升.
    Abstract: In order to obtain an abradable seal coating which is used in high temperature, a porous yttria-stabilized zirconia (YSZ) coating was deposited by the plasma spraying technology. The coating porosity achieved to 2.1% merely by utilizing commercial YSZ powder. A polyester powder coated by TiO2 was blend into the YSZ powder to increase the porosity of the coating. It was shown that the coating porosity increased to 12.3%, 28.5% and 29.7% when the mass percent of the coated polyester powder got up to 10%, 30% and 50%, respectively. Then the mean diameter of the pore in coatings reached to 14.4, 18.5 and 25.4 μm respectively as well. The decreasing hardness was presented with the increase of coating porosity. The higher porosity aroused lower friction force and coefficient in an abrasion condition. The weight loss of the coatings increased by about 3 times with the porosity increasing to about 30% from 2.1%, and the weight loss of the rotated pins decreased by 50%. Thus it can be seen, the abradable property of YSZ coatings can be improved through a porosity promoting process.
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    • 参考文献(9)
  • [1] Aussavy D, Bolot R, Peyraut F, et al. Thermomechanical properties of CoNiCrAlY-BN-Polyester composite coating elaborated by atmospheric plasma spraying[J]. Key Engineering Material, 2014, 606:167-170.
    [2] Cheng Xudong, Xiang Hongyu, Ye Weiping, et al. Effect of coated PHB on properties of abradable seal coating[J]. Journal of Wuhan University of Technology-Mater, 2014, 29(3):417-421.
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    [4] 黄伟, 张覃轶, 肖巍, 等. 纳米ZrO2-Al2O3基高温封严涂层的结构与性能研究[J].表面技术, 2010, 39(6):29-32. Huang Wei, Zhang Qinyi, Xiao Wei, et al. Study on structure and property of Nano ZrO2-Al2O3based seal coating[J]. Surface Technology, 2010, 39(6):29-32.
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    [6] 戴赫, 汪礼敏, 张佳萍, 等.新型高温隔热可磨耗封严涂层研究及展望[J]. 材料导报, 2008, 22(7):18-21. Dai He, Wang Limin, Zhang Jiaping, et al. Research and prospect of novel high-temperature thermal resistant abradable sealing coating[J]. Materials Review, 2008, 22(7):18-21.
    [7] Ding K Y, Wang L J. Effect of particle density on the deposition properties of WC-17Co[J]. China Welding, 2014, 23(4):44-49.
    [8] 韩志勇, 张华, 王志平. TGO界面特征对热障涂层残余应力的影响[J]. 焊接学报, 2012, 33(12):33-36. Han Zhiyong, Zhang Hua, Wang Zhiping. Effect of TGO topography on TBCs residual stresses[J]. Transactions of the China Welding Institution, 2012, 33(12):33-36.
    [9] Zhong X Z, Gu Y, Yokokawa T, et al. Mechanical properties and fracture modes of an advanced Ni-Co-base disk superalloy at elevated temperature[J]. Materials Characterization, 2012, 67(3):101-111.
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  • 收稿日期:  2016-02-23

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