(1. 云南大學(xué) 材料科學(xué)與工程系， 昆明 650091;
2. 昆明理工大學(xué) 冶金系， 昆明 650093)
摘 要: 對(duì)用低價(jià)硫化鋁的歧化反應(yīng)進(jìn)行鋼基鍍膜作了定性研究。 用兩種蒸發(fā)源(2Al2O3+6C+Al2S3)和(4Al+Al2S3)分別進(jìn)行反應(yīng)蒸發(fā)鍍膜，系統(tǒng)真空度為5Pa左右， 基材溫度為1100℃。 研究結(jié)果表明： 以(2Al2O3+6C+Al2S3)為蒸發(fā)源的鋼基鍍膜層為α-Fe及Al13Fe4相， 對(duì)硝酸酒精溶液具有抗蝕性好的特點(diǎn)， 但其平整性稍差， 擴(kuò)散層薄； 以(4Al+Al2S3)為蒸發(fā)源的鍍膜層為Fe3Al及AlFe相， 其鍍膜層表面光滑， 平整， 擴(kuò)散層厚等特點(diǎn)。
關(guān)鍵字: 低價(jià)硫化鋁； 鋁； 鍍膜
（WU Guo-yuan1, DAI Yong-nian2）
Abstract:The filming on steel using the disproportionation reaction of sub-sulphide of Al was studied. The chemical vaporization depositions were realized using(2Al2O3+6C+Al2S3) or (4Al+Al2S3) as reaction mixture at 1100℃ and the pressure of 5Pa. It is indicated that the coat formed by evaporation of (2Al2O3+6C+Al2S3) consists of α-Fe and Al13Fe4, possesses thin diffusion layer and dark rough surface, and is resistant to solution of nitric acid with alcohol; But the coat formed by evaporation of (4Al+Al2S3) consists of Fe3Al and AlFe, and possesses thick diffusion layer and bright smooth surface.
Key words: sub-sulphide; aluminum; film
