超音速等离子喷涂抗冲蚀7YSZ热障涂层
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摘要
针对热障涂层在航空发动机低压涡轮导向叶片上应用时易发生冲蚀的问题,使用超音速等离子喷涂(SAPS)方法制备了7%氧化钇稳定氧化锆(7YSZ)热障涂层,对比普通等离子喷涂7YSZ涂层进行了研究。结果表明SAPS涂层熔化效果更好、微观结构更致密且呈小孔隙弥散分布。涂层的结合力、显微硬度、抗热震性能和抗高温冲蚀效果更好。两种涂层的隔热性能在薄涂层时(厚度<150μm)相差不大,在厚度达到200μm时SAPS涂层会有降低。
When used in aircraft engine low pressure turbine guide vane, thermal barrier coating is prone to erosion. In view of above problem, 7 wt% Yttria partially stabilized zirconia(7 YSZ) thermal barrier coating prepared by using supersonic air plasma spraying(SAPS), and compared to7 YSZ coating by air plasma spray(APS) was studied. The results show that SAPS coating had better melt effect, more compact microstructure, and dispersion distribution of smaller pore. The adhesion strength, micro-hardness, thermal shock resistance and high temperature erosion resistance of the coating were better than APS coating. Heat insulation performance of two kinds of coatings were similar when they were thin coatings(thickness < 150μm), but which of SAPS coating was slightly less than APS when coating thickness reached 200 μm.
When used in aircraft engine low pressure turbine guide vane, thermal barrier coating is prone to erosion. In view of above problem, 7 wt% Yttria partially stabilized zirconia(7 YSZ) thermal barrier coating prepared by using supersonic air plasma spraying(SAPS), and compared to7 YSZ coating by air plasma spray(APS) was studied. The results show that SAPS coating had better melt effect, more compact microstructure, and dispersion distribution of smaller pore. The adhesion strength, micro-hardness, thermal shock resistance and high temperature erosion resistance of the coating were better than APS coating. Heat insulation performance of two kinds of coatings were similar when they were thin coatings(thickness < 150μm), but which of SAPS coating was slightly less than APS when coating thickness reached 200 μm.
引文
[1]郭洪波,宫声凯,徐惠彬.先进航空发动机热障涂层技术研究进展[J].中国材料进展,2009,28(9/10):18-26.
[2]徐庆泽,梁春华,孙广华等.国外航空涡扇发动机涡轮叶片热障涂层技术发展[J].航空发动机,2008,34(03):52-56.
[3]Masakazu Okazaki.The potential for the improvement of high performance thermal barrier coatings[J].Journal of the Society of Materials Science.2003,52:3-8.
[4]黄红卫,于月光,冀晓鹃,等.Si O2对YSZ热障涂层热震性能的影响[J].热喷涂技术,2016,8(1):5-10.
[5]Vijay Kumar,K.Balasubramanian.Progress update on failure mechanisms of advanced thermal barrier coatings:A review[J].Progress in Organic Coatings,2016,90:54-82.
[6]R.G.Wellman,J.R.Nicholls,A review of the erosion of thermal barrier coatings[J].Journal of Physics D:Applied Physics,2007,40:293-305.
[7]F.Cernuschi,C.Guardamagna,S.Capelli,et al.Solid particle erosion of standard and advanced thermal barrier coatings[J].Wear,2016,(348/349):43-51.
[8]X.Chen,R.Wang,N.Yao,et al.Foreign object damage in a thermal barrier system:mechanisms and simulations[J].Materials Science and Engineering,2003,A352:221-231.
[9]李其连,刘怀菲.等离子喷涂Sc2O3-Y2O3-Zr O2热障涂层组织结构和性能研究[J].热喷涂技术,2016,8(1):17-24.
[10]Masakazu Okazaki,Satoshi Yamagishi,Yasuhiro Yamazaki,et al.Adhesion strength of ceramic top coat in thermal barrier coatings subjected to thermal cycles:Effects of thermal cycle testing method and environment[J].International Journal of Fatigue,2013,53:33-39.
[11]Reza Ghasemi,Hamideh Vakilifard.Plasma-sprayed nanostructured YSZ thermal barrier coatings:Thermal insulation capability and adhesion strength[J].Ceramics International,2017.
[12]Jinshuang Wang,Junbin Sun,Hao zhang,et al.Effect of spraying power on microstructure and property of nanostructured YSZ thermal barrier coatings[J].Journal of Alloys and Compounds,2017,730:471-482.
[13]N.A.Fleck,A.C.F.Cocks,S.Lampenscherf.Thermal shock resistance of air plasma sprayed thermal barrier coatings[J].Journal of the European Ceramic Society,2014,34(11):2687-2694.
[14]姚娟娟,王全胜,柳彦博,等.等离子喷涂热障涂层组织结构与抗热震性能关系研究[J].有色金属(冶炼部分),2017增刊:63-66.
[2]徐庆泽,梁春华,孙广华等.国外航空涡扇发动机涡轮叶片热障涂层技术发展[J].航空发动机,2008,34(03):52-56.
[3]Masakazu Okazaki.The potential for the improvement of high performance thermal barrier coatings[J].Journal of the Society of Materials Science.2003,52:3-8.
[4]黄红卫,于月光,冀晓鹃,等.Si O2对YSZ热障涂层热震性能的影响[J].热喷涂技术,2016,8(1):5-10.
[5]Vijay Kumar,K.Balasubramanian.Progress update on failure mechanisms of advanced thermal barrier coatings:A review[J].Progress in Organic Coatings,2016,90:54-82.
[6]R.G.Wellman,J.R.Nicholls,A review of the erosion of thermal barrier coatings[J].Journal of Physics D:Applied Physics,2007,40:293-305.
[7]F.Cernuschi,C.Guardamagna,S.Capelli,et al.Solid particle erosion of standard and advanced thermal barrier coatings[J].Wear,2016,(348/349):43-51.
[8]X.Chen,R.Wang,N.Yao,et al.Foreign object damage in a thermal barrier system:mechanisms and simulations[J].Materials Science and Engineering,2003,A352:221-231.
[9]李其连,刘怀菲.等离子喷涂Sc2O3-Y2O3-Zr O2热障涂层组织结构和性能研究[J].热喷涂技术,2016,8(1):17-24.
[10]Masakazu Okazaki,Satoshi Yamagishi,Yasuhiro Yamazaki,et al.Adhesion strength of ceramic top coat in thermal barrier coatings subjected to thermal cycles:Effects of thermal cycle testing method and environment[J].International Journal of Fatigue,2013,53:33-39.
[11]Reza Ghasemi,Hamideh Vakilifard.Plasma-sprayed nanostructured YSZ thermal barrier coatings:Thermal insulation capability and adhesion strength[J].Ceramics International,2017.
[12]Jinshuang Wang,Junbin Sun,Hao zhang,et al.Effect of spraying power on microstructure and property of nanostructured YSZ thermal barrier coatings[J].Journal of Alloys and Compounds,2017,730:471-482.
[13]N.A.Fleck,A.C.F.Cocks,S.Lampenscherf.Thermal shock resistance of air plasma sprayed thermal barrier coatings[J].Journal of the European Ceramic Society,2014,34(11):2687-2694.
[14]姚娟娟,王全胜,柳彦博,等.等离子喷涂热障涂层组织结构与抗热震性能关系研究[J].有色金属(冶炼部分),2017增刊:63-66.