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材料工程  2014, Vol. 0 Issue (9): 8-13    DOI: 10.11868/j.issn.1001-4381.2014.09.002
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
铝青铜聚酯封严涂层的制备和可磨耗性能评价
杨杰1,2, 安宇龙1, 赵晓琴1, 陈杰1,2, 周惠娣1, 陈建敏1
1. 中国科学院 兰州化学物理研究所 固体润滑国家重点实验室, 兰州 730000;
2. 中国科学院大学, 北京 100049
Preparation and Abradability Evaluation of Aluminum Bronze Polyester Abradable Sealing Coating
YANG Jie1,2, AN Yu-long1, ZHAO Xiao-qin1, CHEN Jie1,2, ZHOU Hui-di1, CHEN Jian-min1
1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China
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摘要 采用机械混合的方法制备了用于可磨耗涂层的铝青铜聚酯复合粉末,并通过大气等离子喷涂制备了相应涂层。通过滑动摩擦实验,对比考察了该涂层与Metco 605NS涂层在不同温度下的可磨耗性能。结果表明:涂层组织中聚酯和孔隙分布均匀;在室温和200℃下,采用混合粉末制备的涂层与钛合金配副摩擦因数均在0.4左右,磨痕表面光滑平整,磨损体积较Metco 605NS涂层更大,表现出更优异的可磨耗性能;在400℃时,聚酯的烧蚀和涂层致密化,以及滑动摩擦实验采用的点接触产生的高接触应力,使得与两种涂层对磨的钛合金均产生黏着剥落和磨粒磨损,摩擦因数升高且存在较大波动。
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杨杰
安宇龙
赵晓琴
陈杰
周惠娣
陈建敏
关键词 大气等离子喷涂铝青铜聚酯封严可磨耗    
Abstract:CuAl-polyester composite powders were prepared by mechanical mixing fine polyester powders and CuAl alloy powders with irregular shape. This mixed powder and a commercial CuAl-polyester Metco 605NS were used for depositing abradable sealing coatings by atmosphere plasma spraying. Sliding wear tests against Ti6Al4V alloy at different temperatures were conducted on the two kinds of sealing coatings to compare their abradability. The results show that at room temperature and 200℃, the coatings obtained from the mixed powder have friction coefficients about 0.4 and smooth wear scars, as well as better abradability than the coatings deposited by the commercial powder. While at 400℃, adhesive spalling and abrasive wear are observed in Ti6Al4V, and the friction coefficients of both coatings increase and are unstable which should be attributed to the burn of polyester and the densification of the coatings, as well as the point contact mode of the wear tests which is apt to generate higher Hertzian stress.
Key wordsatmosphere plasma spray    aluminum bronze    polyester    sealing    abradable
收稿日期: 2013-03-25     
1:  V261.93+3  
基金资助:国家自然科学基金资助项目(51302272);国家重点基础研究发展计划(973计划)项目(2013CB632300)
通讯作者: 陈建敏(1959- ),男,博士生导师,主要从事表面工程与材料防护方面的研究,联系地址:甘肃省兰州市城关区天水中路中国科学院兰州化学物理研究所(730000)     E-mail: chenjm@licp.cas.cn
引用本文:   
杨杰, 安宇龙, 赵晓琴, 陈杰, 周惠娣, 陈建敏. 铝青铜聚酯封严涂层的制备和可磨耗性能评价[J]. 材料工程, 2014, 0(9): 8-13.
YANG Jie, AN Yu-long, ZHAO Xiao-qin, CHEN Jie, ZHOU Hui-di, CHEN Jian-min. Preparation and Abradability Evaluation of Aluminum Bronze Polyester Abradable Sealing Coating. Journal of Materials Engineering, 2014, 0(9): 8-13.
链接本文:  
http://jme.biam.ac.cn/jme/CN/10.11868/j.issn.1001-4381.2014.09.002      或      http://jme.biam.ac.cn/jme/CN/Y2014/V0/I9/8
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