采用超音速微粒轰击(SFPB)技术细化处理高速氧燃料喷涂法(HVOF)喷涂的粘结层,结果表明粘结层主要由γ'-Ni3Al相和γ-Ni相组成.高温氧化2 h,粘结层表面首先生成亚稳态的γ-Al2O3和稳态的α-Al2O3,且在Al2O3之间有少量NiO、Co3O4和尖晶石.亚稳γ-Al2O3和尖晶石倾向于借助β-(Ni,Co)Al相或r'-Ni3Al相晶体表面形核长大;稳定的α-Al2O3倾向于借助γ-Ni相晶体表面形核长大.较长时间的高温氧化后,形成了以α-Al2O3为主相的热生长氧化物层(TGO),对热障涂层系统的高温腐蚀具有良好的防护作用.
参考文献
| [1] | Alkhimov A P,Papyrin A N,Kosarev V.Gas dynamic sparying method for applying a coating[P].US patent:5302414,1994. |
| [2] | Richer P,Zú(n)iga A,Yandouzi M,et al.CoNiCrA1Y microstructural changes induced during cold gas dynamic spraying[J].Surf.Coat.Technol.,2008,203(3-4):364. |
| [3] | Parthasarathi S,Tittmann B R.Elastic properties of ceramic thin structures[A].IEEE Ultrasonics Symposium 619[C].New York:1996. |
| [4] | Sakudo N,Mizutani D,Yoshida M.Surface coating by combining double-pulse plasma with plasma-based ion implantation[A].IEEE Ultrasonics Symposium 5P05[C].New York:1996. |
| [5] | Jensen H,Sobota J,Sorensen G.A study of film growth and tribological characterization of nano-structured CN/TiNx multiplayer coatings[J].Surf.Coat.Technol.,1997,94～95:174. |
| [6] | 韩靖,盛光敏,胡国雄.金属材料表面自纳米化研究现状[J].材料导报,2007,21(专辑Ⅷ):2. |
| [7] | 熊天英,刘志文,李智超等.超音速微粒轰击金属表面纳米化新技术[J].材料导报,2003,17(3):69. |
| [8] | T(a)ck U.The influence of cobalt and rhenium on the behavior of MCrAlY coatings[D].Freiberg:Freiberg University of Technology,2004. |
| [9] | Toscano J,Gil A,Hüttel T,et al.Temperature dependence of phase relationships in different types of MCrAlYcoatings[J].Surf.Coat.Technol.,2007,202(4～7):603. |
| [10] | Naumenko D,Shemet V,Singheiser L,et al.Failure mechanisms of thermalbarrier coatings on MCrAlY-type bondcoats associated with the formation of the thermally grown oxide[J].J.Mater.Sci.,2009,44(7):1687. |
| [11] | Ogawa K,Ito K,Shoji T,et al.Effects of Ce and Si additions to CoNiCrAlY bond coat materials on oxidation behavior and crack propagation of thermal barrier coatings[J].J.Therm.Spray Technol.,2006,15(4):640. |
| [12] | Matsumoto M,Hayakawa K,Kitaoka S,et al.The effect of preoxidation atmosphere on oxidation behavior and thermal cycle life of thermal barrier coatings[J].Mater.Sci.Eng.,2006,A441(1～2):119. |
| [13] | Taniguchi S,Andoh A.Improvement in the oxidation resistance of an Al-deposited Fe-Cr-Al foil by preoxidation[J].Oxid.Met.,2002,58(5～6):545. |
| [14] | Maier R D,Scheuermann C M,Andrews C W.Degradation of a two-layer thermal barrier coating under thermal cycling[J].Am.Ceram.Soc.Bull.,1981,60(5):555. |
| [15] | Teixeira V,Andritschky M,Fischer W,et al.Effects of deposition temperature and thermal cycling on residual stress state in zirconia-based thermal barrier coatings[J].Surf.Coat.Technol.,1999,120-121:103. |
| [16] | Khor K A,Gu Y W.Thermal properties of plasma-sprayed functionally graded thermal barrier coatings[J].Thin Solid Films,2000,372(1-2):104. |
| [17] | Burtin P,Brunelle J P,Soustelle M.Influence of surface area and additives on the thermal stability of transition alumina catalyst supports.I:Kinetic data[J].Appl.Catal.,1987,34:225. |
| [18] | Burtin P,Brunelle J P,Pijolat M,et al.Influence of surface area and additives on the thermal stability of transition alumina catalyst supports.Ⅱ:Kinetic model and interpretation[J].Appl.Catal.,1987,34:239. |
| [19] | 曹学强.热障涂层材料[M].北京:科学出版社,2007. |
| [20] | 张丽娟,林晓娉,刘春阳等.高速微粒轰击对热障涂层热生长氧化物生长过程的影响[J].材料热处理学报,2009,30(3):183. |
| [21] | 韩玉君,董允,王志平等.热障涂层TGO层的残余应力分析[J].稀有金属材料与工程,2010,39(增刊1):182. |
| [22] | 刘春阳,林晓娉,王铁宝等.超音速微粒轰击粘结层对热障涂层抗氧化性能的影响[J].材料保护,2009,42(7):4. |
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%