采用低压气相沉积法,在镍基高温合金DD32上制备铝化物涂层.涂层外层为β-NiAl,内层(扩散层)宽度接近外层,富集Re.在900℃,1000℃氧化500小时后,表面氧化膜为致密的α-Al2O3 和针状的θ-Al2O3,氧化动力学基本符合抛物线规律.氧化后的铝化物涂层外层为β-NiAl,有贫Al的Ni3Al沿晶界析出;内层(扩散层)母体为Ni3Al,并析出块状的富Re和W的化合物.
参考文献
| [1] | HARRIS K.[J].Journal of Materials Engineering and Performance,1993(02):481-502. |
| [2] | ANDERSON ALFRED B;MEHANDRU S P;SOC S J Electrochem.[J].Solid-State Science and Technology,1985(132):1695-1701. |
| [3] | ECER G M;MEIER G H.[J].Oxidation of Metals,1979(13):159-180. |
| [4] | MACKAY R A;EBERT L J .[J].Metallurgical and Materials Transactions,1985,16A:1969-1982. |
| [5] | DRAPER S;HULL D;DRESHFIELD R .[J].Metallurgical and Materials Transactions,1989,23A:683-688. |
| [6] | RYBICKI G C;SMIALED J L.[J].Oxidation of Metals,1989(31):275-304. |
| [7] | Giamei A F;ANTON D L .[J].Metallurgical and Materials Transactions,1985,16:1997-2005. |
| [8] | PIERAGGI B;RAPP R A .[J].Journal of the Electrochemical Society,1993,140:2844-2850. |
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