铝化物涂层在高温氧化过程中主要以两种方式退化，一是涂层的表面氧化退化，二是涂层的内扩散退化。DZ40M钴基高温合金铝化物涂层经900℃和1000℃两个温度下的高温氧化后的组织结构变化表明，该涂层在900℃时以氧化引起的退化为主，而在1000℃时则以内扩散引起的退化为主。通过理论分析可知，涂层以何种退化方式为主，既取决于氧化温度，也取决于涂层本身的组成和结构。
The structure change was observed and analyzed for the aluminidecoating on a representative Co-base superalloy DZ40M during high-temperatureo xidation in air. It is discovered that, this coating, which is prepared by low-p ressure chemical vapor deposition (LP-CVD), degrades mainly by oxidation on the surface of the coating at 900℃, but mainly by inner-diffusion of Al inward to the substrate at 1000℃.
参考文献
| [1] | 刘培生;孙晓峰;管恒荣 .[J].材料科学与工艺,1998,6(01):25. |
| [2] | Liu Peisheng;Xiaofeng;Jin Tao .Phase transformation of Al-Ti coatings on Co-base superalloy dz40m during High temperature oxidation[J].Transactions of Nonferrous Metals Society of China,1998(4):582-587. |
| [3] | 孙晓峰 .高温合金中几种铝化物涂层的高温腐蚀行为研究[D].中国科学院金属研究所,1999. |
| [4] | 刘培生 .[J].中国腐蚀与防护学报,1999,19(03):144-150. |
| [5] | 方互 .[J].金属学报,1975,11(01):89. |
| [6] | 刘培生,管恒荣,孙晓峰,金涛,杨克努,梁开明,顾守仁.DZ40M合金铝化物涂层的高温氧化蚀点现象[J].材料工程,2000(05):7-8,44. |
| [7] | 楼翰一 .[J].中国腐蚀与防护学报,1997(17):464. |
| [8] | 刘培生;梁开明;顾守仁 .[J].中国有色金属学报,2000(10):102. |
| [9] | S B Newcomb;M J Bennett Ed.[J].Microscopy of Oxidation,1993(02):243. |
| [10] | G C Rybicki;J L Smialek;L S James .[J].Oxidation of Metals,1989,31(3-4):275. |
| [11] | D R Sigler .[J].Oxidation of Metals,1991,36(1-2):57. |
| [12] | D Delauney;A M Huntz .[J].Journal of Materials Science,1982,17:2027. |
| [13] | M J Bennett et al.[J].Material Science and Engineering,1985,69:359. |
| [14] | J P Coad;D S Richerby;S C Oberlander .[J].Materials Science and Engineering,1985,74:93. |
| [15] | C Burman;T Ericsson;I Kvernes .[J].Surface and Coatings Technology,1988,36:1. |
| [16] | H Y Lou;F H Wang .[J].VACUUM,1992,43:757. |
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%