采用等离子喷涂(PS)方法,在GH536高温合金基材上制备了传统的双层热障涂层(TBCs)和2种含有Al2O3与ZrO2陶瓷复合层的3层热障涂层.传统TBCs结构为Ni22Cr10AlY合金连接层和8%Y2O3部分稳定的ZrO2(8YPSZ)陶瓷顶层;3层TBCs中分别采用置于8YPSZ陶瓷层内层及外层的Al2O3与8YPSZ复合层.3种类型试样的100h,1050℃静态氧化试验及1050℃热震试验结果表明:3层涂层较双层涂层的氧化阻力提高,双层涂层的热震阻力最佳,氧化阻力最差.不同复合层形式试样的热振失效方式和寿命也有差别,复合层置于陶瓷层外层热震寿命略高,但100h氧化增重有明显提高,抗氧化性降低.
参考文献
| [1] | Zhu D M;Miller R A .[J].MRS Bulletin,2000,1:43. |
| [2] | Goward G W .[J].Surface and Coatings Technology,1998,108-109:73. |
| [3] | Lellait L;Alperine S;Mevrel R .[J].Journal of Materials Science,1992,27:5. |
| [4] | 郭洪波,徐惠彬,宫声凯,刘福顺.表面强化对EB-PVD热障涂层的高温氧化性能及结合强度的影响[J].稀有金属材料与工程,2001(04):314-317. |
| [5] | Sun J H;Chang E;Chao C H;Cheng M .[J].Oxidation of Metals,1993,40:465. |
| [6] | Wu B C;Chao C H;Chang E;Chang T C .[J].Materials Science and Engineering,1990,A124:215. |
| [7] | Leushard U;Schulz U;Peters M;Kaysser W A,Robin B H .[J].Surface and Coatings Technology,1997,94-95:131. |
| [8] | Ma X Q;Rhyin Y M;Jin H W;Park C G,Kim M C .[J].Corro Eng Sect,1997,55:805. |
| [9] | Ramaswany A;Seetharamu S;Varma K B R;Rao K J .[J].Composites Science and Technology,1997,57:81. |
| [10] | Bourban S;Karapatis N;Hofmann H;Kurz W .[J].Acta Materialia,1997,45:5069. |
| [11] | Nazeri A;Qadri S B .[J].Surface and Coatings Technology,1996,86/87:166. |
| [12] | Joshi S V;Strivastava M P .[J].SURFACE ENGINEERING,1995,11:233. |
| [13] | Freborg A M;Ferguson B L;Brindley W J;Petrus W .[J].Journal of Materials Science and Technology,1998,A225:182. |
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