研究了等离子喷涂过程中,不同基体预热温度下NiCrCoAlY金属与ZrO2陶瓷颗粒的变形规律.结果表明: 基体无预热时,NiCrCoAlY金属颗粒沉积形貌呈盘形,并伴随边缘堆积和飞溅碎块等不规则现象,影响后续颗粒的顺利铺展; 基体预热至200℃时,不规则现象减少,后续颗粒铺展良好.ZrO2颗粒在基体无预热条件下凝固后呈圆盘状,并产生龟裂纹和条束状溅射,随着基体预热温度的升高,龟裂和溅射现象减少.基体预热对NiCrCoAlY涂层孔隙率影响不大,而ZrO2涂层在基体预热至200℃时孔隙率明显降低.
参考文献
| [1] | 陈炳贻.航空发动机用热障涂层(TBC)的发展[J].材料保护,1997,30(2):19-21.Cheng Bingyi.The development of thermal barrier coating(TBC) for aeroengine[J].Material Protection,1997,30(2):19-21. |
| [2] | 向兴华,陈康年,刘正义.等离子喷涂ZrO2-NiCoCrAlY梯度涂层的成分分布与力学性能[J].复合材料学报,2000,17(1):89-92.Xiang Xinghua,Chen Kangnian,Liu Zhengyi.Compositional distribution and mechanical properties of plasma sprayed ZrO2-NiCoCrAlY graded coating[J].Acta Materiae Compositae Sinica,2000,17(1):89-92. |
| [3] | 邓世均.热障陶瓷涂层的最新发展[J].材料保护,2003,36(3):5-7.Deng Shijun.Evolution of thermal barrier ceramic coatings[J].Material Protection,2003,36(3):5-7. |
| [4] | 范群波,王鲁,王富耻.等离子喷涂金属/陶瓷颗粒的瞬态碰撞压力研究[J].北京理工大学学报,2003,23(2):168-193.Fan Qunbo,Wang Lu,Wang Fuchi.A study on the transient pressure of plasma sprayed metal/ceramic particles[J].Transactions of Beijing Institute of Technology,2003,23(2):168-193. |
| [5] | 许杨健,涂代惠.对流换热边界下变物性梯度功能材料板瞬态温度场有限元分析[J].复合材料学报,2003,20(2):94-99.Xu Yangjian,Tu Daihui.Transient temperature field analysis of functionally gradient material plate with temperature-dependent material properties under convective heat transfer boundary by finite element method[J].Acta Materiae Compositae Sinica,2003,20(2):94-99. |
| [6] | 杨定富,韩树,袁伟.基体预热温度对热障涂层热残余应力影响的研究[J].表面技术,2004,33(2):22-23.Yang Dingfu,Han Shu,Yuan Wei.Study on the influences of the substrate preheating temperature on the thermal residual stress of the thermal barrier coating[J].Surface Technology,2004,33(2):22-23. |
| [7] | 陈煌,周霞明,黄民辉.纳米ZrO2等离子涂层的结构、性能和工艺特点[J].无机材料学报,2003,18(4):911-916.Chen Huang,Zhou Xiaming,Huang Minhui.Structure,property and processing characterization of plasma sprayed nanostructured zirconia coating[J].Journal of Inorganic Materials,2003,18(4):911-916. |
| [8] | Sampath S,Jiang X Y,Marejicek J.Substrate temperature effects on splat formation,microstructure development and properties of plasma sprayed coatings,Part Ⅰ:Case study for partially stabilized zirconia[J].Materials Science & Engineering A,1999,272:181-188. |
| [9] | 刘建军,李铁虎,郝志彪.炭/炭复合材料表面等离子喷涂钨涂层结构与性能研究[J].表面技术,2003,32(3):28-30.Liu Jianjun,Li Tiehu,Hao Zhibiao.Study on structure and performance of plasma-spraying tungsten coatings on carbon-carbon composites[J].Surface Technology,2003,32(3):28-30. |
| [10] | Fukumo M,Katoh S,Kanc O I.Splat behavior of plasma sprayed particles on flat substrate surface[C]∥ Ohmori A.14th International Conference on Thermal Spraying.Kobe:High Temperature Society of Japan,1995:353-358. |
| [11] | Ianchi B L,Grimaud A,Lein B F,et al.Comparison of plasma sprayed alumina coating by RF and DC plasma spraying[J].Thermal Spray Technology,1995,4(1):59-66. |
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%