引用本文:邹慧,孙铭阳,王璐璐,董仲伸,丁坤英.基于刮磨温度的封严涂层刮磨形貌和黏附形态分析*[J].中国表面工程,2022,35(1):155~161
ZOU Hui,SUN Mingyang,WANG Lulu,DONG Zhongshen,DING Kunying.Scraping Morphology and Adhesion Morphology Analysis of Sealing Coating Based on Scraping Temperature[J].China Surface Engineering,2022,35(1):155~161
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基于刮磨温度的封严涂层刮磨形貌和黏附形态分析*
邹慧1, 孙铭阳1, 王璐璐2, 董仲伸1,2, 丁坤英1
1.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;2.中国南方航空股份有限公司工程技术分公司 沈阳 110170
摘要:
为了探究航空发动机可磨耗封严涂层与叶片在高速刮磨过程中磨损和黏附情况,使用大气等离子喷涂方法制备 AlSi-PHB 中低温封严涂层,对其进行高速刮磨试验,并对涂层和叶尖形貌和黏附形态进行研究。通过高速转子试验台测得刮磨过程中径向力和切向力并拟合刮磨温度曲线。采用共聚焦显微镜和扫描电镜设备获取涂层和叶尖表截面形貌、EDS 面扫描能谱以及涂层表面粗糙度,采用高精度电子秤测得涂层和叶尖失重量并计算失重速率,进一步佐证刮磨温度变化趋势。结果表明:高速刮磨时的单次切削量影响涂层失重速率,且产生不同的刮磨温度,刮磨温度影响叶尖黏附物状态;叶尖黏附物形态进一步影响刮磨后的涂层表面形貌,最终影响涂层封严性能。对高速刮磨过程中涂层刮磨形貌和叶尖黏附形态进行定性和定量分析,可为判断不同刮磨形态对涂层使用性能影响提供参考。
关键词:  封严涂层  高速刮磨  黏附转移  刮磨温度
DOI:10.11933/j.issn.1007-9289.20210824001
分类号:TG174
基金项目:中央高校基本科研业务费重点资助项目(3122019189)
Scraping Morphology and Adhesion Morphology Analysis of Sealing Coating Based on Scraping Temperature
ZOU Hui1, SUN Mingyang1, WANG Lulu2, DONG Zhongshen1,2, DING Kunying1
1.Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance,Civil Aviation University of China, Tianjin 300300 , China;2.Shenyang Base of China Southern Airlines Corporation Engineering & Technology Branch,Shenyang 110170 , China
Abstract:
In order to investigate the wear and adhesion of the abrasion-sealing coating and blade blade in the process of high-speed scraping, the atmospheric plasma spraying method is used to prepare AlSi-PHB sealing coating, and the high-speed scraping test is carried out. The radial force and tangential force in the process of scraping are measured by high-speed rotor test bench and the temperature curve of scraping is fitted. The scraping and adhesion morphology of the coating and blade tip are studied. The curves of radial and tangential force are measured,and the temperature curve of scraping is calculated. The surface of the coating and blade tip, EDS surface scanning and surface roughness are obtained. The weight loss of the coating and blade tip is measured and the rate is calculated to further support the trend of scraping temperature. The results show that the occurrence of adhesion transfer affects the surface morphology of the coating after scraping, and then affects the application efficiency of the coating. The scraping temperature indirectly affects the blade tip adhesion state by affecting the weight loss rate of the coating, and affects the safety of the coating, which is an important factor affecting the adhesion transfer. The weight loss rate of blade tip adhesion was low, but the weight loss rate of flake was high. This paper presents a qualitative and quantitative analysis of the coating scraping morphology and tip adhesion patterns during high-speed scraping, which provides a data reference for determining the effect of different scraping patterns on the coating performance.
Key words:  sealing coating  high speed scraping  scraping mechanism  scraping temperature
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