【摘要】 通过电沉积－反应烧结方法在Ｆｅ３Ａｌ表面制得了均匀致密无鼓泡等缺陷的Ｃｒ３Ｏ２薄膜，这种薄膜在室温下呈非晶态，本文用ＴＥＭ，ＥＤＡＸ，ＳＥＭ和ＸＲＤ等手段研究了这种薄膜对Ｆｅ３Ａｌ在９００℃空气中氧化行为的影响，发现表面沉积这种薄膜可以使氧化层晶粒细化并促进Ａｌ的选择性氧化，从而提高了的抗高温氧化性能。更多还原

【Abstract】 A uniform, dense and defect free Cr2O3 thin film, which is amorphous at ambient temperature, was applied on the surface of intermetallic Fe3Al by electrodeposition reaction sintering, and the effect of this film on the oxidation of Fe3Al at 900 ℃ in air was studied. The films and the oxide scales were analyzed by TEM, EDAX,SEM and XRD.It is proved that, by surface applied Cr2O3 thin film,a continuous, protective,fine grained α-Al2O3 scale was formed on Fe3Al. As a result, the adherence of the scale and oxidation resistance of Fe3Al were improved.更多还原