AL5252铝合金阳极氧化及封孔处理后的性能
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摘要
AL5252铝合金在使用中易遭受腐蚀。先对AL5252铝合金阳极氧化再作封孔处理,对比分析了其封孔前后的表面与截面形貌、膜基结合强度和表面粗糙度等。结果表明:AL5252铝合金阳极氧化后表面形成了形状、大小不规则的多孔型氧化膜,封孔后膜表面呈蜂窝状,生成勃姆石和镍的氢氧化物沉淀并封闭了氧化膜的多孔层,使之具有较好抗腐蚀能力;阳极氧化膜与基体结合强度较高,但封孔后膜基结合强度略微降低,膜表面粗糙度增高。
In this work,AL5252 aluminum alloy was treated by anodic oxidation first and then followed by sealing treatment. The section morphology,bonding strength and surface roughness of the oxide film before and after sealing treatment were compared and analyzed. Results showed that after anodization the porous oxide film with irregular shape and size formed on the surface of aviation aluminum. After sealing treatment,the surface of the oxide film was honeycomb-like and boehmite,and nicke hydroxide formed and deposited,sealing the porous layer of the oxide film,and therefore,the oxide film had better corrosion resistance. Moreover,the anodic oxide film-base binding strength was better,however after the sealing treatment it was slightly reduced and meanwhile the surface roughness of the oxide film was increased.
In this work,AL5252 aluminum alloy was treated by anodic oxidation first and then followed by sealing treatment. The section morphology,bonding strength and surface roughness of the oxide film before and after sealing treatment were compared and analyzed. Results showed that after anodization the porous oxide film with irregular shape and size formed on the surface of aviation aluminum. After sealing treatment,the surface of the oxide film was honeycomb-like and boehmite,and nicke hydroxide formed and deposited,sealing the porous layer of the oxide film,and therefore,the oxide film had better corrosion resistance. Moreover,the anodic oxide film-base binding strength was better,however after the sealing treatment it was slightly reduced and meanwhile the surface roughness of the oxide film was increased.
引文
[1]吴小源,刘志铭.铝合金和型材表面处理技术[M].北京:冶金工业出版社,2009:3-4.
[2]郭鹤桐,王为.铝阳极氧化的回顾与展望[J].材料保护,2000,33(1):43-45.
[3]侯春阳,陈静,程党国,等.阳极氧化氧化铝膜研究进展[J].化工进展,2010(S2):222-227.
[4]孙晓麟,赵霞,金权祖,等.草酸阳极氧化制备铝合金氧化膜及其防腐蚀性能[J].材料保护,2018,51(2):5-9.
[5] WEMICK S O B E,PINNER R.The Surface treatment and finishing of aluminum and its alloys(4th ed)[M].[s. l]:[s.n.],1972:668-730.
[6] SCHOENER,HESS,NALLOY,WICMUND.Low temperature seal for anodized aluminum surfaces:0193964[P]. 1986-09-10.
[7]刘军,戴贤斌.铝阳极氧化常温封孔剂GYS-3的研制及应用[J].广东有色金属学报,1999(1):55-60.
[8]张永光.铝阳极氧化膜无镍常温封孔[J].矿冶工程,2001,21(4):61-63.
[9]李共发,张永光,高赢. 2007铝型材技术(国际)论坛论文集[C].广州:中国有色金属学会,2007:630-633.
[10]刘传烨,欧阳贵,王本英,等. 2007年第七届全国转化膜会议暨技术研讨会论文集[C].武汉:武汉材料保护研究所,2007:113-115.
[11]徐荣正,宋刚,刘黎明.铝合金表面电弧喷涂铝涂层工艺与性能[J].焊接学报,2008,29(6):109-112.
[12] DEBUYCK F,MOORS M. The influence of the anodization temperature and voltage on the porosity onthe anodization layer on aluminum[J]. Materials Chemistry and Physics,1993,36(1/2):146-149.
[13] HAO L,CHENG B R. Sealing processes of anodic coatingspast,present,and future[J]. Metal Finish,2000,12(8):8-18.
[2]郭鹤桐,王为.铝阳极氧化的回顾与展望[J].材料保护,2000,33(1):43-45.
[3]侯春阳,陈静,程党国,等.阳极氧化氧化铝膜研究进展[J].化工进展,2010(S2):222-227.
[4]孙晓麟,赵霞,金权祖,等.草酸阳极氧化制备铝合金氧化膜及其防腐蚀性能[J].材料保护,2018,51(2):5-9.
[5] WEMICK S O B E,PINNER R.The Surface treatment and finishing of aluminum and its alloys(4th ed)[M].[s. l]:[s.n.],1972:668-730.
[6] SCHOENER,HESS,NALLOY,WICMUND.Low temperature seal for anodized aluminum surfaces:0193964[P]. 1986-09-10.
[7]刘军,戴贤斌.铝阳极氧化常温封孔剂GYS-3的研制及应用[J].广东有色金属学报,1999(1):55-60.
[8]张永光.铝阳极氧化膜无镍常温封孔[J].矿冶工程,2001,21(4):61-63.
[9]李共发,张永光,高赢. 2007铝型材技术(国际)论坛论文集[C].广州:中国有色金属学会,2007:630-633.
[10]刘传烨,欧阳贵,王本英,等. 2007年第七届全国转化膜会议暨技术研讨会论文集[C].武汉:武汉材料保护研究所,2007:113-115.
[11]徐荣正,宋刚,刘黎明.铝合金表面电弧喷涂铝涂层工艺与性能[J].焊接学报,2008,29(6):109-112.
[12] DEBUYCK F,MOORS M. The influence of the anodization temperature and voltage on the porosity onthe anodization layer on aluminum[J]. Materials Chemistry and Physics,1993,36(1/2):146-149.
[13] HAO L,CHENG B R. Sealing processes of anodic coatingspast,present,and future[J]. Metal Finish,2000,12(8):8-18.