添加K2ZrF6对LY12铝合金微弧氧化膜层结构调制及隔热性能影响

doi:10.3724/SP.J.1077.2010.00865

无机材料学报 ›› 2010, Vol. 25 ›› Issue (8): 865-870.DOI: 10.3724/SP.J.1077.2010.00865 CSTR: 32189.14.SP.J.1077.2010.00865

添加K₂ZrF₆对LY12铝合金微弧氧化膜层结构调制及隔热性能影响

张欣盟, 陈东方, 巩春志, 杨士勤, 田修波

(哈尔滨工业大学现代焊接生产技术国家重点实验室, 哈尔滨 150001)

收稿日期:2009-11-02 修回日期:2010-01-05 出版日期:2010-08-20 网络出版日期:2010-07-19
基金资助:
国家自然科学基金(50773015)

Modulation Effects of K₂ZrF₆ Additive on Microstructure and Heat Resistance of Micro-arc Oxide Coatings Fabricated on LY12 Aluminum Alloy

ZHANG Xin-Meng, CHEN Dong-Fang, GONG Chun-Zhi , YANG Shi-Qin, TIAN Xiu-Bo

(State Key Laboratory of Advanced Welding Production and Technology, Harbin Institute of Technology, Harbin 150001, China)

Received:2009-11-02 Revised:2010-01-05 Published:2010-08-20 Online:2010-07-19

摘要/Abstract

摘要：

基于K₂ZrF₆在碱性溶液中形成负电 Zr(OH)₄ 颗粒的作用机理, 在添加K₂ZrF₆的Na₂SiO₃-KOH溶液中, 对LY12铝合金表面进行微弧氧化处理. 利用扫描电镜(SEM)、能谱(EDX)和X射线衍射仪(XRD)探讨了K₂ZrF₆添加剂对成膜速率、膜层形貌及结构的调制作用, 并借助热阻隔性能测试评价了不同溶液中所形成膜层的热阻隔效果. 结果表明, 溶液中添加K₂ZrF₆增大了微弧氧化的成膜速率, 使膜层的内外表面较为平整, 且膜层中大尺寸缺陷减少. EDX线扫描分析表明, 添加K₂ZrF₆后形成的膜层中出现大量Zr元素, 且其含量随距膜/基界面距离的增加而增加. XRD结果显示, 未添加K2ZrF6溶液制得的膜层主要由γ-Al₂O₃和α-Al₂O₃相组成; 添加K₂ZrF₆后, 膜层中晶态氧化物含量降低、非晶态物质增多. 隔热性能测试显示, 经K₂ZrF₆调制后的膜层具有更加优良的热阻隔性能.

关键词: 铝合金, 微弧氧化, 组织结构, 调制作用

Abstract:

Zr(OH)₄ particle can be formed and negatively charged in alkaline solution with K₂ZrF₆addition. Based on this mechanism, Zr-containing ceramic coatings were fabricated on LY12 aluminum alloy by microarc oxidation (MAO) using K₂ZrF₆as a special additive in Na₂SiO₃-KOH base electrolyte. The modulation effects of K₂ZrF₆ addition on micro-microstructure, element distribution and phase composition were analyzed by SEM, EDS and XRD, respectively. Heat resistance of MAO coatings formed on LY12 aluminum alloy in different electrolyte was investigated. The results show that the K₂ZrF₆addition can increase the micro-arc oxidation rate and significantly alter the structure of MAO coatings. Both the top surface and inner surface of MAO coatings fabricated in Zr-containing electrolyte become relatively smooth. Compared with the coating formed in Zr-free electrolyte, a large amount of Zr element is found in the coating formed in electrolyte with K₂ZrF₆ addition. Two main phases, γ-Al₂O₃and α-Al₂O₃, are contained in Zr-free coating. In contrast, more amorphous phase is found in Zr-containing coating with reduced amount of crystalline alumina. Experimental results also demonstrate that Zr-containing coating exhibits higher heat resistance.

Key words: aluminum alloy, microarc oxidation, micro-structure, modulation effect

中图分类号:

TG174

张欣盟, 陈东方, 巩春志, 杨士勤, 田修波. 添加K₂ZrF₆对LY12铝合金微弧氧化膜层结构调制及隔热性能影响[J]. 无机材料学报, 2010, 25(8): 865-870.

ZHANG Xin-Meng, CHEN Dong-Fang, GONG Chun-Zhi , YANG Shi-Qin, TIAN Xiu-Bo. Modulation Effects of K₂ZrF₆ Additive on Microstructure and Heat Resistance of Micro-arc Oxide Coatings Fabricated on LY12 Aluminum Alloy[J]. Journal of Inorganic Materials, 2010, 25(8): 865-870.

参考文献

[1]刘萝威, 曹运红. 高温树脂基复合材料在超音速导弹弹体上的应用. 宇航材料工艺, 2002, (5): 15-19.
[2]Yerokhin A L, Nie X, Leyland A, et al. Plasma electrolysis for surface engineering.Surf. Coat. Technol,1999, 122(2/3):73-93
[3]Current J A, Clyne T W. Porosity in plasma electrolytic oxide coatings.Acta Mater,2006, 54(7):1985-1993
[4]蒋百灵, 白力静, 蒋永锋.(JIANG Bai-Lin, et al) LY12铝合金表面氧化铝陶瓷层的生长过程. 中国有色金属学报(J. Nonferr. Metal Soc.), 2001, 11(S2): 186-189.
[5]吴汉华, 于凤荣, 李俊杰, 等 (WU Han-Hua et al). 铝合金微弧氧化陶瓷膜形成过程中的特性研究. 无机材料学报 (Journal of Inorganic Materials), 2004, 19(3): 617-622.
[6]Current J A, Clyne T W. The thermal conductivity of plasma electrolytic oxide coatings on aluminium and magnesium.Surf. Coat. Technol,2005, 199(2/3):177-183
[7]Curran J A, Kalkanc- H, Magurova Y, et al. Mullite-rich plasma electrolytic oxide coatings for thermal barrier applications.Surf. Coat. Technol,2007, 201(21):8683-8687
[8]Shen D J, Wang Y L, Nash P, et al. Microstructure, temperature estimation and thermal shock resistance of PEO ceramic coatings on aluminum.J. Mater. Process. Technol,2008, 205(1/2/3):477-481
[9]Xin S G, Song L X, Zhao R G, et al. Composition and thermal properties of the coating containing mullite and alumina.Mater. Chem. Phys,2006, 97(1):132-136
[10]Butyagin P I, Khokhryakov Y V, Mamaev A I. Microplasma systems for creating coatings on aluminium alloys.Mater. Lett,2003, 57(11):1748-1751
[11]魏涛, 雷廷权, 周玉, 等. 陶瓷热障涂层的研究进展. 宇航材料工艺, 1997(3): 1-4.
[12]Matykina E, Arrabal R, Monfort F, et al. Incorporation of zirconia into coatings formed by DC plasma electrolytic oxidation of aluminium in nanoparticle suspensions.Appl. Surf. Sci,2008, 255(5):2830-2839
[13]Matykina E, Arrabal R, Monfort F, et al. Incorporation of zirconia nanoparticles into coatings formed on aluminum by AC plasma electrolytic oxidation. Appl. Surf. Sci., 2008, 38(10): 1375-1383.
[14]Shang W, Chen B Z, Shi X C, et al. Electrochemical corrosion behavior of composite MAO/sol–gel coatings on magnesium alloy AZ91D using combined micro-arc oxidation and sol–gel technique.J. Alloys Compd,2009, 474(1/2):541-545
[15]Wu Z D, Yao Z P, Jiang Z H. Preparation and structure of microarc oxidation ceramic coatings containing ZrO2 grown on LY12 alloy.Rare Metals,2008, 27(1):55-58
[16]Luo H H, Cai Q Z, Wei B K, et al. Study on the microstructure and corrosion resistance of ZrO2-containing ceramic coatings formed on magnesium alloy by plasma electrolytic oxidation.J. Alloys Compd,2009, 474(1/2):551-556
[17]Nedozorov P M, Kilin K N, Yarovaya T P, et al. Optical properties of ZrO2–containing anodic coatings on aluminum.J. Appl. Spectrosc,2001, 68(4):670-674
[18]辛世刚, 赵荣根, 都徽, 等(XIN Shi-Gang et al). 铝合金表面氧化锆等离子体电解氧化涂层的制备及形成机理研究. 无机材料学报 (Journal of Inorganic Materials), 2009, 24(1): 107-110.
[19]许煜汾, 范文元. 陶瓷微滤膜分离Zr(OH)4悬浮液的研究. 中国粉体技术, 2000, 6(S1): 251-253
[20]Monfort F, Berkani A, Matykina E, et al. Development of anodic coatings on aluminium under sparking conditions in silicate electrolyte.Corros. Sci,2007, 49(2):672-693
[21]Sundararajan G, Krishna L R. Mechanisms underlying the formation of thick alumina coatings through the MAO coating technology.Surf. Coat. Technol,2003, 167 (2/3):269-277
[22]辛世刚, 宋力昕, 赵荣根, 等 (XIN Shi-Gang, et al). 微弧氧化Al-Si-O陶瓷涂层的结构与结合强度. 无机材料学报 (Journal of Inorganic Materials), 2006, 21(2): 493-498.
[23]Xue W B, Deng Z W, Chen R Y, et al. Growth regularity of ceramic coatings formed by microarc oxidation on Al–Cu–Mg alloy.Thin Solid Films,2000, 372(1/2):114-117
[24]Matykina E, Arrabal R, Mohamed A, et al. Plasma electrolytic oxidation of pre-anodized aluminium.Corros. Sci,2009, 51(12):2897-2905

添加K₂ZrF₆对LY12铝合金微弧氧化膜层结构调制及隔热性能影响

Modulation Effects of K₂ZrF₆ Additive on Microstructure and Heat Resistance of Micro-arc Oxide Coatings Fabricated on LY12 Aluminum Alloy

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	杜佳恒, 范鑫丽, 肖东琴, 尹一然, 李忠, 贺葵, 段可. 电泳沉积制备微弧氧化钛表面氧化镁涂层及其生物学性能[J]. 无机材料学报, 2023, 38(12): 1441-1448.
[2]	王志虎,张菊梅,白力静,张国君. AZ31镁合金微弧氧化陶瓷层表面Mg(OH)₂膜层的制备及耐蚀性[J]. 无机材料学报, 2020, 35(6): 709-716.
[3]	杨少辉, 闫淑芳, 李世江, 陈伟东, 杜培, 马文. 阶段占空比对ZrH_1.8表面微弧氧化陶瓷层性能的影响[J]. 无机材料学报, 2020, 35(10): 1112-1116.
[4]	张晓晨, 王雪梅, 王春雷. 烧结方式对(K,Na,Li)(Nb,Sb,Ta)O₃压电陶瓷的微观结构和物理性能的影响[J]. 无机材料学报, 2019, 34(7): 721-726.
[5]	谢晓, 隋颖, 黄晓昱, 朱晨光. 镁铝合金直接燃烧法合成AlN晶体[J]. 无机材料学报, 2019, 34(4): 439-443.
[6]	杜培, 闫淑芳, 陈伟东, 李世江, 马文. 石墨烯浓度对ZrH_1.8表面微弧氧化陶瓷层的影响[J]. 无机材料学报, 2019, 34(11): 1175-1180.
[7]	刘小元, 刘宝丹, 姜亚南, 王柯, 周洋, 杨兵, 张兴来, 姜辛. 形貌可控及光学吸收性能可调的钙钛矿型SrTiO₃纳米结构的原位生长[J]. 无机材料学报, 2019, 34(1): 65-71.
[8]	张鹏飞, 闫淑芳, 陈伟东, 李世江, 耿艳花, 王宏兴. 正向电压对氢化锆微弧氧化阻氢膜层性能的影响[J]. 无机材料学报, 2018, 33(7): 793-797.
[9]	张鹏飞, 闫淑芳, 陈伟东, 李世江, 赵丽, 王宏兴. 铝酸盐体系下反应时间对ZrH_1.8表面阻氢膜层制备的影响[J]. 无机材料学报, 2018, 33(3): 284-288.
[10]	古毓康, 曹磊, 万勇, 高建国. 铝合金基底微碳球作为润滑油添加剂的摩擦学性能及其润滑机理[J]. 无机材料学报, 2017, 32(6): 625-630.
[11]	罗军明, 吴小红, 徐吉林. 电解液组分对TiC_P/Ti6Al4V复合材料微弧氧化膜耐蚀性及耐磨性影响[J]. 无机材料学报, 2017, 32(4): 418-424.
[12]	李航, 卢松涛, 秦伟, 吴晓宏. 电流密度对MgO-ZnO陶瓷薄膜结构和热控性能的影响[J]. 无机材料学报, 2017, 32(12): 1292-1298.
[13]	李轩, 田进, 田伟, 谢文玲, 李秀兰. TC4合金表面Zr增效硅化物涂层的组织及高温摩擦磨损性能[J]. 无机材料学报, 2017, 32(10): 1102-1108.
[14]	姚铮, 仇鹏飞, 李小亚, 陈立东. n型填充方钴矿热电材料的快速制备研究[J]. 无机材料学报, 2016, 31(12): 1375-1382.
[15]	叶作彦, 刘道新, 李重阳, 张晓化, 张小明, 雷明霞. 封闭对铝合金微弧氧化膜在酸性溶液中耐蚀性的影响[J]. 无机材料学报, 2015, 30(6): 627-632.