LY12CZ铝合金的己二酸硫酸阳极氧化

于美; 陈高红; 刘建华; 李松梅

LY12CZ铝合金的己二酸硫酸阳极氧化

北京航空航天大学材料科学与工程学院, 北京 100191

基金项目: 国家自然科学基金资助项目(51001007)

详细信息

中图分类号: TG 174.42
计量
- 文章访问数: 2784
- HTML全文浏览量: 40
- PDF下载量: 505
- 被引次数: 0
出版历程
- 收稿日期: 2010-11-25
- 网络出版日期: 2012-03-30

Adipic-sulfuric acid anodizing for LY12CZ aluminum alloy

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 通过向硫酸阳极氧化槽液中添加己二酸,研究了LY12CZ铝合金的己二酸硫酸阳极氧化,并与传统硫酸阳极氧化进行了对比.采用场发射扫描电子显微镜(FE-SEM)对两种阳极氧化膜的微观形貌进行了观察,用电化学阻抗谱(EIS)对比研究了两种氧化膜的电化学特性参数及耐腐蚀性能,采用万能力学实验机对阳极氧化后LY12CZ板材试样进行疲劳寿命测试比较.结果表明,与传统硫酸阳极氧化膜相比,己二酸硫酸阳极氧化膜具有更小的孔洞结构和更少的缺陷,在腐蚀环境中有更好的稳定性和耐腐蚀性能,对铝合金试样的疲劳损伤也大大减弱,并对机理进行了初步探讨.
- 铝合金 /
- 阳极氧化 /
- 己二酸 /
- 疲劳寿命
Abstract: Adipic-sulfuric acid anodic oxidation was improved by adding hexane diacid into sulfur acid anodic bath solutions for LY12CZ aluminum alloy, and compared to conventional sulfur acid anodic oxidation. The morphology of two kinds of oxide films was observed by using filed emission-scanning electron microscope (FE-SEM). The corrosion resistance and electrochemical character of oxide film were investigated with electrochemical impedance spectroscope (EIS). Tensile fatigue test of anodic LY12CZ plates was carried out. It is found that adipic-sulfuric acid oxide film has smaller pore structure and fewer defects, and it has better stability and corrosion resistance in corrosive environment. The influence of anodic oxidation on the fatigue properties decreases. The mechanism of adipic-sulfuric acid anodic oxidation was also discussed.
- aluminum alloy /
- anodic oxidation /
- hexane diacid /
- fatigue life-cycle

HTML全文

参考文献(20)

[1]	王祝堂,田荣璋.铝合金及其加工手册[M].长沙:中南大学出版社,2000 Wang Zhutang,Tian Rongzhang.Manual process of aluminum alloys[M].Changsha:Central South University Press,2000 (in Chinese)
[2]	周育红,韩喜江,周德瑞,等.铝及铝合金阳极氧化膜的封闭技术[J].哈尔滨工业大学学报,2003,35(11):1325-1327 Zhou Yuhong,Han Xijiang,Zhou Derui,et al.Techniques used for sealing of anodized aluminum and aluminum alloys[J].Journal of Harbin Institute of Technology,2003,35(11):1325-1327(in Chinese)
[3]	蔡健平,李斌,刘明辉,等.阳极化对航空铝合金疲劳性能的影响[J].航空材料学报,2007,27(2):25 Cai Jianping,Li Bin,Liu Minghui,et al.Effect of anodizing on fatigue performance of aeronautic aluminum alloys[J].Journal of Aeronautical Materials,2007,27(2):25(in Chinese)
[4]	文斯雄.铝和铝合金宽温快速阳极氧化[J].航空制造技术,2005,1:108 Wen Sixiong.Wide temperature range and rapid anodic oxidation of Al and Al alloy[J].Aeronautical Manufacturing Technology,2005,1:108(in Chinese)
[5]	Dattilo A.Anodizing process with low environmental impact for a workpiece of aluminum or aluminum alloy:Italy,EP1233084 A2[P].2002-08-21
[6]	Kubota,Shizuoka,Inukai,et al.Method for anodizing aluminum materials:United States,5851373 A1[P].1998-12-22
[7]	Domingues L,Fernandes J C S,Ferreira M G S,et al.Anodising of Al 2024-T3 in a modified sulphuric acid/boric acid bath for aeronautical applications[J].Corrosion Science,2003,45(3):149-160
[8]	Thomspon G E,Zhang L,Smith C J E,et al.Boricy sulfuric acid anodizing of aluminum alloys 2024 and 7075:film growth and corrosion resistance[J].Corrosion Science Section,1999,55(3):11-20
[9]	Curioni M,Skeldon P,Koroleva E.Role of tartaric acid on the anodizing and corrosion behavior of AA2024 T3 aluminum alloy[J].Journal of the Electrochemical Society,2009,156(4):147-153
[10]	Gregory B,Nadine P,Catherine D.FESEM and EIS study of sealed AA2024 T3 anodized in sulfuric acid electrolytes:influence of tartaric acid[J].Journal of the Electrochemical Society,2008,155(11):521-529
[11]	刘建华,李明,李松梅,等.挤压成型对LC4CS铝合金棒材阳极氧化膜结构的影响[J].航空材料学报,2009,30(2):368-373 Liu Jianhua,Li Ming,Li Songmei,et al.Effect of extrusion on microstructure of anodic oxide films formed on LC4CS aluminium alloy bars[J].Acta Aeronautical Materials,2009,30(2):368-373(in Chinese)
[12]	Liu Jianhua,Li Ming,Li Songmei,et al.Effect of microstructure of anodic oxide formation in sulfuricacid[J].International Journal of Mineals,Metallurgy and Materials,2009,16(4):432-438
[13]	HB5287-96 金属材料轴向加载疲劳试验方法[S] HB5287-96 Axial load fatigue testing of metal materials[S] (in Chinese)
[14]	Habazaki H,Zhou X,Shimizu K,et al.Mobility of copper ions in anodic alumina films[J].Electrochimica Acta,1997,42:2627-2635
[15]	Moutarlier V,Gigandet M P,Pagetti J.Charactetisation of pitting corrosion in sealed anodic films formed in sulphuric,sulphuric/molybdate and chromic media[J].Applied Surface Science,2003,206(6):237-249
[16]	Fanny S,Christine B,Georges M,et al.Characterisation of sealed anodic films on 7050 T74 and 2214 T6 aluminium alloys[J].Surface and Coatings Technology,2002,154(2):94
[17]	Ali M,Graeme E.Determination of fatigue related discontinuity state of 7000 series of aeroapace aluminum alloys[J].Engineering Fatigue Analysis,2007,14(8):673-685
[18]	Suay J J,Gimenez E,Rodriguez T,et al.Characterization of anodized and sealed aluminium by EIS[J].Corrosion Science,2003,45(21):611-624
[19]	赵军,朱建龙,薛花娟,等.阳极氧化对7075铝合金疲劳性能的影响[J].南京航空航天大学学报,2008,40(3):412 Zhao Jun,Zhu Jianlong,Xue Huajuan,et al.Effects of anodizing methods on behavior of 7075 aluminum alloy[J].Journal of Nanjing University of Aeronautics and Astronautics,2008,40(3):412(in Chinese)
[20]	Al-Rubaie K S,Del Grande M A,Travessa D N,et al.Effects of pre-strain on the fatigue life of 7050-T7451 aluminum alloy[J].Materials Science and Engineering A,2007,464(3):141-150