乔家科,孙波,丁坤英,张鹏,廖智豪,王继恒.铝硅聚苯酯封严涂层全尺寸刮磨实验[J].表面技术,2017,46(7):65-69.
QIAO Jia-ke,SUN Bo,DING Kun-ying,ZHANG Peng,LIAO Zhi-hao,WANG Ji-heng.Full-scale Bench Test of AlSi-Polyester Seal Coating[J].Surface Technology,2017,46(7):65-69 |
| 铝硅聚苯酯封严涂层全尺寸刮磨实验 |
| Full-scale Bench Test of AlSi-Polyester Seal Coating |
| 投稿时间：2017-02-25 修订日期：2017-07-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2017.07.011 |
| 中文关键词: 刮磨材料 可磨耗性 封严涂层 刮磨机理 AlSi-ployster 摩擦磨损 |
| 英文关键词:abradable material abradability seal coating scraping mechanism AlSi-Polyester friction and wear |
| 基金项目:中国民航大学大学生创新创业训练项目（201610059054） |
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| Author | Institution |
| QIAO Jia-ke | Civil Aviation University of China, Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Tianjin 300300, China |
| SUN Bo | Civil Aviation University of China, Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Tianjin 300300, China |
| DING Kun-ying | Civil Aviation University of China, Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Tianjin 300300, China |
| ZHANG Peng | Civil Aviation University of China, Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Tianjin 300300, China |
| LIAO Zhi-hao | Civil Aviation University of China, Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Tianjin 300300, China |
| WANG Ji-heng | Civil Aviation University of China, Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Tianjin 300300, China |
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| 中文摘要: |
| 目的 研究航空发动机气路密封配副中铝硅聚苯酯封严涂层的摩擦磨损性能。方法 利用等离子喷涂技术制备铝硅聚苯酯封严涂层试样，采用特定台架刮磨实验装置，对低温封严涂层的可磨耗性能的失效机理进行研究，利用3D激光共聚焦显微镜和扫描电镜，分别观察了低硬度、中间硬度、高硬度的封严涂层在低、高刮磨转速条件下的刮痕表面形貌及表面粗糙度。结果 低刮磨速度下，3种硬度涂层的刮痕截面轮廓深度分别为150、350、360 μm，表面粗糙度依次为16.236、22.155、47.300 μm；高速刮磨下，涂层的刮磨深度均明显增加，依次为280、570、570 μm。结论 不同硬度涂层展现出不同的刮磨机理，低硬度涂层（HR15Y 45）的刮磨机理主要是粘着磨损，中间硬度涂层（HR15Y 60）以微观切削为主，高硬度涂层（HR15Y 75）展现出腐蚀磨损和磨粒磨损机理。相较硬度对涂层性能的影响，叶尖线速度对刮痕深度起主导作用，高刮磨速度时，刮痕深度明显增加。刮痕表面粗糙度和轮廓深度是衡量涂层性能好坏的重要指标。 |
| 英文摘要: |
| The work aims to study friction and wear properties of AlSi-ployster seal coating in aero engine gas path seal pair. AlSi-ployster seal coating sample was prepared by taking advantage of plasma spraying technology. A full-scale bench test apparatus was utilized to study failure mechanism of low-temperature seal coating abradability. Seal coatings of low hardness, medium hardness and high hardness, scratch morphology and surface roughness at low and high scraping speed were observed using 3D laser scanning confocal microscope and SEM (scanning electron microscopy), respectively. Scratch section profile depth of coatings of different hardness was 150 μm, 350 μm and 360 μm, respectively, and surface roughness 16.236, 22.155 and 47.300 μm; scrape depth of the coatings increased significantly at high scraping speed (280 μm, 570 μm and 570 μm). Coatings of different hardness exhibit different scraping mechanisms, scraping mechanism of low-hardness coating (HR15Y 45) is mainly adhesive wear, medium-hardness coating (HR15Y 60) micro cutting and high-hardness coating (HR15Y 75) corrosive wear and abrasive wear. Compared with effects of hardness on coating performance, blade tip velocity has significant influence on scratch depth. The scratch depth increases obviously at high scraping speed. Scratch surface roughness and profile depth are important indicators of measuring coating performance. |
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