摘要
以6061铝合金为研究对象,对其在弱酸性介质中的微弧氧化膜的成分及性能进行了分析,探讨瓷质氧化预处理对微弧氧化膜的影响。结果表明:在弱酸性介质中,6061铝合金瓷质氧化预处理+微弧氧化膜的主要成分是γ-Al_(2)O_(3)和α-Al_(2)O_(3),同时由于残留的瓷质氧化膜,无定型的Al_(2)O_(3)也存在于氧化膜中;其厚度和硬度分别为25.3μm、1690 HV0.1,对比未预处理的微弧氧化膜,瓷质氧化预处理可显著提高氧化膜的厚度、硬度及耐腐蚀性。
Taking 6061 aluminum alloy as the research object,the composition and performance of its micro-arc oxidation(MAO)film in weak-acid electrolyte were analyzed,and the influence of ceramic anodizing pretreatment on the MAO film was discussed.The results show that in weak-acid electrolyte,the 6061 aluminum alloy MAO film with ceramic anodizing pretreatment is mainly composed ofγ-Al_(2)O_(3) andα-Al_(2)O_(3),while amorphous Al_(2)O_(3) also exists due to the residual ceramic anodizing film.Compared with the non-pretreated MAO film,the ceramic anodizing pretreatment can significantly increase the thickness,hardness and corrosion resistance of the oxidation film,of which the thickness and hardness after the pretreatment are 25.3μm and 1690 HV0.1,respectively.
作者
伍宇昊
魏晓伟
谢晓伟
Wu Yuhao;Wei Xiaowei;Xie Xiaowei(School of Materials Science and Engineering,Xihua University,Chengdu Sichuan 610039,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2021年第3期28-32,共5页
Heat Treatment of Metals
基金
四川省重点学科材料加工工程项目(SZD0502-09)
四川省重点学科平台项目(SZD1112-1)。
关键词
微弧氧化
6061铝合金
瓷质氧化预处理
micro-arc oxidation
6061 aluminum alloy
ceramic anodizing pretreatment
