采用大气等离子喷涂(APS)在高温合金表面制备一层NiCoCrAlY粘结层,然后采用阴极等离子电解沉积(CPED)制备一层弥散Pt微粒的8YSZ涂层.通过在电解液中加入陶瓷微珠,促使阴极表面发生均匀的等离子微弧放电,实现了在大面积样品上沉积8YSZ涂层.获得的涂层厚度到达120 μm,具有多孔结构,由立方相和四方相8YSZ以及Pt组成.1100℃空气中循环氧化的结果表明,随着涂层中Pt含量的的增加,涂层的抗高温氧化和抗剥落性能得到明显提高.Pt微粒对8YSZ涂层的增韧作用主要为:Pt微粒塑性变形吸收裂纹扩展的能量,钝化裂纹尖端,减小裂纹尺寸,提高涂层的临界断裂应力.
参考文献
| [1] | Bose S;De Masi-Marcin J .Thermal barrier coating experience in gasturbine engines at pratt &whitney[J].Journal of Thermal Spray Technology,1997,6(01):99-104. |
| [2] | Nitin P. Padture;Maurice Gell;Eric H. Jordan .Thermal Barrier Coatings for Gas-Turbine Engine Applications[J].Science,2002(5566):280-284. |
| [3] | 刘纯波,林锋,蒋显亮.热障涂层的研究现状与发展趋势[J].中国有色金属学报,2007(01):1-13. |
| [4] | Cao X Q;Vassen R;Stoever D .Ceramic materials for thermal barrier coatings[J].Journal of the European Ceramic Society,2004,24(01):1-10. |
| [5] | 郑蕾,郭洪波,郭磊,彭徽,宫声凯,徐惠彬.新一代超高温热障涂层研究[J].航空材料学报,2012(06):14-24. |
| [6] | Zhenhua Xu;Limin He;Rende Mu .Double-ceramic-layer thermal barrier coatings of La_2Zr_2O_7/YSZ deposited by electron beam-physical vapor deposition[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2009(1/2):509-515. |
| [7] | XIE Xiaoyun,GUO Hongbo,GONG Shengkai,XU Huibin.Hot Corrosion Behavior of Double-ceramic-layer LaTi2Al9O19/YSZ Thermal Barrier Coatings[J].中国航空学报（英文版）,2012(01):137-142. |
| [8] | Chou W B;Tuan W H .Toughening and strengthening of alumina with silver inclusions[J].Journal of the European Ceramic Society,1995,15(04):291-295. |
| [9] | MA Xiao-xu;HE Ye-dong;WANG De-ten .Preparation and high-temperature properties of Au nano-particles doped α-Al2O3 composite coating on TiAl-based alloy[J].Applied Surface Science,2011,257(23):10273-10281. |
| [10] | Junqi Yao;YedongHe;Deren Wang;Hui Peng;Hongbo Guo;Shengkai Gong .Thermal barrier coatings with (Al_2O_3-Y_2O_3)/(Pt or Pt-Au) composite bond coat and 8YSZ top coat on Ni-based superalloy[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2013(Dec.1):298-305. |
| [11] | 何业东;马晓旭;张津 等.一种弥散贵金属微粒增韧复合热障涂层及制备方法[P].中国,CN 102732883 A,2012-10-17. |
| [12] | Miller;Robert A .Current status of thermal barrier coatings-an overview[J].Surface and Coatings Technology,1987,30(01):1-11. |
| [13] | Schulz U;Schmücker M .Microstructure of ZrO2 thermal barrier coatings applied by EB-PVD[J].Materials Science and Engineering A,2000,276(1/2):1-8. |
| [14] | Krysmann W;Kurze P;Dittrich K H et al.Process characteristics and parameters of anodic oxidation by spark discharge (ANOF)[J].Crystal Research and Technology,1984,19(07):973-979. |
| [15] | Yerokhin A L;Nie X;Leyland A et al.Plasma electrolysis for surface engineering[J].Surface and Coatings Technology,1999,122:73-79. |
| [16] | Xiaozhan Yang;Yedong He;Deren Wang .Cathodic Micro-Arc Electrodeposition of Thick Ceramic Coatings[J].Electrochemical and solid-state letters,2002(3):C33-C34. |
| [17] | 何业东;杨晓战;王德仁 .一种制备氧化物陶瓷涂层的阴极微弧电沉积方法[P].中国,CN 1327091 A,2001-12-19. |
| [18] | 杨晓战,何业东,王德仁,高唯.阴极微弧电沉积钇稳定氧化锆涂层[J].科学通报,2002(07):525-529. |
| [19] | Bahadori, E.;Javadpour, S.;Shariat, M.H.;Mahzoon, F. .Preparation and properties of ceramic Al_2O_3 coating as TBCs on MCrAly layer applied on Inconel alloy by cathodic plasma electrolytic deposition[J].Surface & Coatings Technology,2013(Suppl.1):S611-S614. |
| [20] | Gupta P;Tenhundfeld G;Daigle EO;Ryabkov D .Electrolytic plasma technology: Science and engineering - An overview[J].Surface & Coatings Technology,2007(21):8746-8760. |
| [21] | 束德林.工程材料力学性能[M].北京:机械工业出版社,2007 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%