镁合金微弧氧化Na2CO3诱导析气反应及结构调制

doi:10.3724/SP.J.1077.2011.00721

无机材料学报 ›› 2011, Vol. 26 ›› Issue (7): 721-725.DOI: 10.3724/SP.J.1077.2011.00721

镁合金微弧氧化Na₂CO₃诱导析气反应及结构调制

王晓波, 田修波, 巩春志, 杨士勤

(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:2010-09-25 修回日期:2010-11-18 出版日期:2011-07-20 网络出版日期:2011-06-20
作者简介:王晓波(1981-), 男, 博士研究生. E-mail: yize24@163.com
基金资助:
国家自然科学基金(10775036)

Na₂CO₃-induced Gas Evolution Reaction and Morphology Modulation on Magnesium Alloy during Micro-arc Oxidation

WANG Xiao-Bo, TIAN Xiu-Bo, GONG Chun-Zhi, YANG Shi-Qin

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

Received:2010-09-25 Revised:2010-11-18 Published:2011-07-20 Online:2011-06-20
Supported by:
National Natural Science Foundation of China(10775036)

摘要/Abstract

摘要： 阳极析气能够有效调制微弧氧化膜层表面形貌. 实验提出了一种CO₂增强析气的方法. 在Na₃PO₄+KOH+NaF溶液中添加Na₂CO₃对AZ31镁合金表面进行微弧氧化处理. 利用气相质谱、扫描电镜、X射线衍射、红外光谱扫描探讨了Na₂CO₃添加剂对阳极区析气反应的影响和对膜层形貌、结构的调制作用. 结果表明: 与传统微弧氧化不同, 添加Na₂CO₃之后, 阳极区产生的气体既有O₂也有CO₂. 在含Na₂CO₃的电解液中, 微弧氧化前期的阳极氧化阶段有MgCO₃生成; 在微弧氧化后期, 膜层中不含有MgCO₃, 膜层主要相仍为MgO相. 对比发现, 经过Na₂CO₃调制之后的膜层表面大尺寸孔隙数目减少, 膜层孔隙率提高.

关键词: 微弧氧化, 析气, 镁合金, Na₂CO₃, 调制作用

Abstract: Surface morphology of the ceramic coatings can be modulated by gas evolution on anodes during micro arc oxidation (MAO) processes. A novel technique to enhance gas evolution using Na₂CO₃-containing solution was proposed. MAO ceramic coatings were fabricated on AZ31 magnesium alloy using Na₂CO₃ as a special additive in Na₃PO₄+KOH +NaF base electrolyte. The effects of Na₂CO₃ addition on the reaction of gas evolution near the anode, morphology modulation and chemical composition were investigated by using GC-MS, SEM, XRD and FTIR, respectively. The results show that both O₂and CO₂ are evolved from the anode with Na₂CO₃ addition during MAO process. MgCO₃ is found in the coating during the anodic oxidation before MAO, while only MgO is detected in the coating after MAO process. It is attributed to the decomposition of MgCO₃ to MgO and CO₂ due to local high temperature. Na₂CO₃addition has slight effect on the microstructure of the coating and MgO is the main phase no matter whether Na₂CO₃ is utilized. With the addition of Na₂CO₃ the number of larger-size pores decreases and porosity in the coatings increases.

Key words: micro-arc oxidation, gas evolution, magnesium alloy, sodium carbonate, modulation effect

中图分类号:

TG174

王晓波, 田修波, 巩春志, 杨士勤. 镁合金微弧氧化Na₂CO₃诱导析气反应及结构调制[J]. 无机材料学报, 2011, 26(7): 721-725.

WANG Xiao-Bo, TIAN Xiu-Bo, GONG Chun-Zhi, YANG Shi-Qin. Na₂CO₃-induced Gas Evolution Reaction and Morphology Modulation on Magnesium Alloy during Micro-arc Oxidation[J]. Journal of Inorganic Materials, 2011, 26(7): 721-725.

参考文献

[1] Yerokhin A L, Nie X, Leyland A, et al. Plasma electrolysis for surface engineering. Surf. Coat. Technol., 1999, 122(2/3): 73-93.

[2] 薛文斌, 金乾, 朱庆振, 等(XUE Wen-Bin, et al). SiCP/AZ31镁基复合材料微弧氧化膜结构与性能分析. 无机材料学报(Journal of Inorganic Materials), 2009, 24(3): 612-616.

[3] 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.

[4] Xue W B, Wang C, Tian H, et al. Corrosion behaviors and galvanic studies of microarc oxidation films on Al-Zn-Mg-Cu alloy. Surf. Coat.Technol., 2007, 201(21): 8695-8701.

[5] 王亚明, 蒋百灵, 雷廷权, 等(WANG Ya-Min, et al). Na2SiO3系溶液中Ti6Al4V微弧氧化陶瓷膜的结构与力学性能. 稀有金属材料与工程(Rare Metal Mat. Eng.), 2004, 33(5): 502-506.

[6] Yerokhin A L, Snizhko L O, Gurevina N L, et al. Discharge characterization in plasma electrolytic oxidation of aluminum. J. Phys. D: Appl. Phys., 2003, 36: 2110-2120

[7] 王立世, 潘春旭, 蔡启舟, 等(WANG Li-Shi, et al). 等离子体电解氧化过程中单个稳态微放电的热效应研究. 物理学报(Acta Physica Sinica), 2007, 56(9): 5341-5346.

[8] Albella J M, Moutevo I. A Theory of avalanche breakdown during anodic oxidation. Electrochemica Acta, 1987, 32(2): 255-258.

[9] Yang G L, Lü X Y, Bai Y Z, et al. The effects of current density on the phase composition and microstructure properties of micro-arc oxidation coating. J. Alloys Compd., 2002, 345(1/2): 196-200.

[10] 骆海贺, 蔡启舟, 魏伯康, 等(LUO Hai-He, et al). 添加剂浓度对微弧氧化陶瓷层结构及耐蚀性的影响. 中国有色金属学报(T. Nonferr Metal Soc.), 2008, 18 (6): 1082-1088.

[11] Li X, Yang H, Li C H, et al. Effects of additives on the morphologies of thin titania films from self-assembly of a block copolymer. Polymer, 2008, 49(5): 1376-1384.

[12] Zheng H Y, Wang Y K, Li B S, et al. The effects of Na2WO4 concentration on the properties of microarc oxidation coatings on aluminum alloy. Mater. Lett., 2005, 59(2/3): 139-142.

[13] Wang L, Chen L, Yan Z C, et al. Effect of potassium fluoride on structure and corrosion resistance of plasma electrolytic oxidation films formed on AZ31 magnesium alloy.-J. Alloys Compd., 2009, 480(2): 469-474.

[14] 郑亚君, 党利琴, 张智平, 等. 搅拌时间对水合碳酸镁形貌和组成的影响. 精细化工, 2007, 24(9): 835-837.

[15] 张世刚, 许磊, 刘红超, 等(ZHANG Shi-Gang, et al). 鸟巢状氧化镁球形材料的合成、表征及催化性能. 催化学报(Chinese J. Catal), 2009, 30(6): 514-518.

[16] Choudhary V R, Pataskar S G, Gunjikar V G, et al. Influence of preparation conditions of basic magnesium carbonate on its thermal analysis. Thermochim. Acta, 1994, 232(1): 95-110.

[17] Van T B, Brown S D, Wirtz G P, et al. Mechanism of anodic spark deposition. Am. Ceram. Soc. Bull., 1977, 56(6): 563-566.

[18] Snizhko L O, Yerokhin A L, Gurevina N L, et al. A model for galvanostatic anodising of Al in alkaline solutions. Electrochim. Acta, 2005, 50(27): 5458-5464.

[19] Snizhko L O, Yerokhin A L, Pilkington A, et al. Anodic processes in plasma electrolytic oxidation of aluminium in alkaline solutions. Electrochim. Acta, 2004, 49(13): 2085-2095.

[20] 杨巍, 蒋百灵, 鲜林云, 等. 溶质离子在镁合金微弧氧化膜形成过程中的作用. 材料热处理学报, 2009, 30(1): 157-160.

镁合金微弧氧化Na₂CO₃诱导析气反应及结构调制

Na₂CO₃-induced Gas Evolution Reaction and Morphology Modulation on Magnesium Alloy during Micro-arc Oxidation

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]	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.
[2]	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.
[3]	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.
[4]	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.
[5]	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.
[6]	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.
[7]	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.
[8]	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.
[9]	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.
[10]	喻杰, 韦东波, 王岩, 吕鹏翔, 狄士春. 激光重熔改性铝合金微弧氧化膜层的组织与性能[J]. 无机材料学报, 2013, 28(8): 859-863.
[11]	吕鹏翔, 韦东波, 郭成波, 李兆龙, 狄士春. 2024铝合金表面扫描式微弧氧化工艺研究[J]. 无机材料学报, 2013, 28(4): 381-386.
[12]	薛文斌, 鲁亮, 杜建成, 华铭, 赵衍华. 2219铝合金搅拌摩擦焊接头微观组织对微弧氧化膜生长的影响[J]. 无机材料学报, 2011, 26(9): 897-901.
[13]	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.
[14]	薛文斌,金乾,朱庆振,马跃宇. SiC_P/AZ31镁基复合材料微弧氧化膜结构与性能分析[J]. 无机材料学报, 2009, 24(3): 612-616.
[15]	李华平,柴广跃,彭文达,阳英,高敏,郭宝平,牛憨笨. 微弧熔区的淬冷过程及其对氧化铝膜微观结构的影响[J]. 无机材料学报, 2008, 23(1): 114-120.