摘要
在硫酸中对3003铝合金进行低温硬质阳极氧化,研究了硫酸的质量浓度、电流密度、温度、时间等工艺参数对氧化膜厚度、显微硬度、耐蚀性和微观形貌的影响,得到最佳工艺参数为:硫酸180 g/L,温度0℃,电流密度2.5 A/dm^2,氧化时间60 min,95℃热水封孔时间30 min。在最佳条件下所得阳极氧化膜均匀、致密,厚度为40.05μm,显微硬度为394.9 HV,耐蚀性好。
Hard anodization of3003aluminum alloy was conducted in sulfuric acid solution at low temperature.The effects of process parameters including mass concentration of sulfuric acid,current density,temperature,and time on the thickness,microhardness,corrosion resistance and micro-morphology of oxide film were studied.The optimal process parameters were obtained as follows:sulfuric acid180g/L,temperature0°C,current density2.5A/dm2,anodization time60min,and sealing time30min.The oxide film obtained under the optimal conditions is uniform and compact with a thickness of40.05μm,a microhardness of394.9HV and good corrosion resistance.
作者
张丽
付国燕
陆江银
魏连启
崔彦斌
ZHANG Li;FU Guo-yan;LU Jiang-yin;WEI Lian-qi;CUI Yan-bin(Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China)
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2018年第3期113-121,共9页
Electroplating & Finishing
基金
中国科学院过程工程研究所介尺度科学中心创新基金(COM2016A003)
多相复杂系统国家重点实验室自主研究课题(MPCS-2017-A-11).
关键词
铝合金
硬质阳极氧化
低温
硫酸
厚度
显微硬度
耐蚀性
aluminum alloy
hard anodization
low temperature
sulfuric acid
thickness
microhardness
corrosion resistance
