表面技术Issue(4)：37-42,6.
LC4铝合金表面硬质阳极氧化膜制备及表征
Preparation and Characterization of Hard Anodic Oxidation Film on LC4 Aluminum Alloy Surface
摘要
Abstract
Objective The hard anodic oxidation films were prepared on the surface of the LC4 aluminum alloy and the effects of different parameters on the thickness and hardness of the films were discussed. Methods By optimizing parameters of the anodic ox-idation time, temperature, current density and the positive and negative pulse time ratio, the thickness, hardness and microstruc-ture of the films were studied by means of OM, SEM, XRD, and hardness tester. Results The optimized parameters were: a tem-perature of -2 ~ 0 ℃ , a positive pulse current density of 4 A/ dm2 , a negative pulse current density of 1 A/ dm2 , a positive and negative pulse current time ratio of 6 : 1, and an oxidation time of 50 min. The structure of the oxide film on LC4 aluminum alloy was composed of a series of tubular cells with a diameter of 50 nm, the thickness of anodic oxidation film was 36 μm, and the hard-ness was 420HV. Conclusion The anodic oxidation film had fine structure and high hardness.关键词
LC4 铝合金/阳极氧化膜/正负脉冲波形/硬度Key words
LC4 aluminum alloy/anodic oxide film/positive and negative pulse waveform/hardness分类
矿业与冶金引用本文复制引用
王英才,陈岁元,刘平平..LC4铝合金表面硬质阳极氧化膜制备及表征[J].表面技术,2014,(4):37-42,6.基金项目
辽宁省教育厅科学技术研究项目( LT2010031) （ LT2010031）
沈阳市科技工业攻关项目( F11-042-2-00)Fund：Supported by Educational Commission of Liaoning Province of China ( LT2010031) （ F11-042-2-00）
Science and technology Industrial research project of Shenyang (F11-042-2-00) （F11-042-2-00）
