摘要
利用真空蒸镀技术在碳钢基体上制备出纯Al和Al-Mn合金薄膜,并对不同厚度、蒸发速率下Al和Al-Mn薄膜的表面形貌、结构、结合力和耐蚀性进行了研究。结果表明:纯Al和Al-Mn合金薄膜表面光滑均匀;铝薄膜在3.5%NaCl溶液中的耐蚀性随膜层厚度和蒸发速率的增加而升高;薄膜与基体的结合力随薄膜厚度的增加缓慢下降,但结合力均高于60N。退火处理使铝薄膜的粗糙度增大,但薄膜与基体的结合力基本保持不变。Al-Mn合金薄膜中的Mn以Al-Mn固溶体形式存在,其耐蚀性明显优于相同厚度下的纯铝薄膜。
Pure Al and Al-Mn alloy films were deposited onto carbon steel by vacuum evaporation method. The surface morphology, structure, adhesion and corrosion resistance of Al and Al-Mn films were observed and determined. The results show that the deposited Al and Al-Mn films are smooth, compact and uniform. The corrosion resistance of Al film in 3.5%NaCl solution increases with the film thickness and evaporation rate. The adhesion force of Al and Al-Mn films decreases with the film thickness, but is larger than 60 N. Compared with as-deposited film, the annealed AI film has a coarse surface, but the adhesion force of films keeps unchanged. The component of Mn is existed in Al-Mn alloy films by Al-Mn solid solution. Under the same film thickness, Al-Mn alloy film has a higher corrosion resistance than pure Al film.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2008年第4期1-5,共5页
Ordnance Material Science and Engineering
基金
国家自然科学基金委员会与中国工程物理研究院NSAF联合基金资助项目(10376023)
关键词
蒸镀
铝
薄膜
组织
耐蚀性
vacuum evaporation
aluminum
film
microstructure
corrosion resistance
