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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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高Si压铸Al合金ADC12的微弧氧化表面改性
, PP. 1289-1292
Keywords: 压铸Al合金ADC12,微弧氧化,陶瓷膜
Abstract:
利用恒流微弧氧化技术,在以Na2SiO3和Na3PO4为主盐的电解液中,在高硅压铸Al合金ADC12表面制备了陶瓷膜.显微硬度及耐蚀性能测试表明,陶瓷膜显微硬度(HV)高达1430,能对基体金属提供有效的防护.涡流测厚及SEM研究显示,该陶瓷膜厚度分布比较均匀,具有双层结构.EDX和XRD分析表明,该微弧氧化陶瓷膜的主要元素组成为O,Al,Si和P;主要相组成为γ-Al2O3和α-Al2O3,同时含有少量χ-Al2O3,θ-Al2O3和Al2SiO5晶体.
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