.894 北京科技大学学报 第35卷 表2ZA1S12合金基样及采用不同电解液处理后微弧氧化 (娅娅，郭锋，李鹏飞，等.铈对Z-4合金微弧氧化陶瓷膜结 膜的电化学腐蚀数据 构和性能的影响.稀有金属材料与工程，2010,39(8)：1443) Table 2 Electrochemical corrosion data of ZAlSi12 alloy [3]Zhu M H,Cai Z B,Lin X Z,et al.Fretting wear behaviour substrates and MAO films after treatment by different elec- of ceramic coating prepared by micro-arc oxidation on Al- trolytes Si alloy.Wear,2007,263(1-6):472 试样 Ecorr/V icorr/(A.cm-2) Rp/(2cm-2) [4]Zhang X,Shao Z C,Qi D.Effect of TiO2 powder on the 基样 -0.7989 6.0771×10-6 4293 performance of magnesium alloy micro-arc oxidation ce- S1 -0.8780 7.0796×10-8 368480 ramic coating.Rare Met Mater Eng,2011,40(Suppl 2): S3 -0.7390 1.2239×10-6 21315 495 S5 -0.8777 3.6157×10-7 72150 (张璇，邵忠财，齐丹.TO2粉体对镁合金微弧氧化陶瓷膜 性能的影响.稀有金属材料与工程，2011,40（增刊2）：495) 3结论 [5]Ma Y,Liu N,Wang Y S,et al.Effect of chromate additive on corrosion resistance of MAO coatings on magnesium al- (1)ZA1Si12合金在微弧氧化处理时，向电解液 loys.J Chin Ceram Soc,2011,39(9):1493 中加入Li2SO4,可增加氧化膜的厚度：当加入质量 (马颖，刘楠，王宇顺，等。铬酸盐对镁合金微弧氧化膜耐蚀 为40g时，获得氧化膜厚度可达197m,但由扫 性的影响.硅酸盐学报，2011,39(9)：1493) 描电镜像可观察到该反应过程剧烈，最终试样表面 [6]Li J F,Fang K M,Xiong R Z,et al.Wear resistance 粗糙. properties of micro-arc oxidized ceramic layer.J Univ Sci (2)电解液中加入10g的Li2S04可一定程度 Technol Beijing,2003,25(6):542 上降低微弧氧化熔融物的黏度，使得氧化膜以平面 (李金富，方克明，熊仁章，等.铝合金微弧氧化陶瓷层的耐 铺展的方式生长 磨性.北京科技大学学报，2003.25(6)：542) [7]Lu L H,Shen D J,Zhang J W,et al.Evolution of micro- (3)Li2SO4加入前，氧化膜主要由a-Al2O3相 arc oxidation behaviors of the hot-dipping aluminum coat- 和少量的莫来石相组成，同时可以检测到基体A1 ings on Q235 steel substrate.Appl Surf Sci,2011,257(9): 和Si的存在：Li2S04加入后膜层中出现Y-Al203 4144 相，并且A1和Si相的衍射峰消失. [8 Liu W H,Liu W B,Bao A L.Microstructure and proper- (4)电解液中加入Li2SO4且经微弧氧化处理 ties of ceramic coatings on 7N01 aluminum alloy by micro- 得到的试样耐腐蚀性能优于未经微弧氧化处理的 arc oxidation.Procedia Eng,2012,27:828 试样. [9]Ding H Y,Dai Z D,Skuiry S C,et al.Corrosion wear be- haviors of micro-arc oxidation coating of Al2Os on 2024Al in different aqueous environments at fretting contact.Tri- 参考文献 bol Int,2010,43(5/6):868 [10 Krishna L R,Poshal G,Sundararajan G.Influence of elec- [1]Lai X M,Kang Z X,Li YY.Duplex surface modification trolyte chemistry on morphology and corrosion resistance combined with micro-arc oxidation and polymer plating of micro arc oxidation coatings deposited on magnesium on AZ31 magnesium alloy and their functional properties. Metall Mater Trans A,2010,41(13):3499 Chin J Nonferrous Met,2011,21(6):1299 [11]Wang Y H,Liu X D,Zhang Y P,et al.Characterization of (赖晓明，康志新，李元元.AZ31镁合金微弧氧化与有机镀 micro-arc oxidation coating on surface of ZAlSi12Cu2Mgl 膜的复合表面改性及功能特性.中国有色金属学报，2011， alloy in the electrolyte containing Li2CO3.Rare Met 21(6):1299) Mater Eng,2010,39(Suppl 1):305 [2]Ya Y,Guo F,Li P F,et al.Effect of cerium on the struc- (王颖辉，刘向东，张雅萍，等.含L2CO3的电解液中形 ture and properties of micro-arc oxidation ceramic coat- 成ZA1Si12Cu2Mg1合金微弧氧化膜的表征.稀有金属材 ings of zircalloy-4.Rare Met Mater Eng,2010,39(8):1443 料与工程，2010,39（增刊1）：305)· 894 · 北 京 科 技 大 学 学 报 第 35 卷 表 2 ZAlSi12 合金基样及采用不同电解液处理后微弧氧化 膜的电化学腐蚀数据 Table 2 Electrochemical corrosion data of ZAlSi12 alloy substrates and MAO films after treatment by different elec￾trolytes 试样 Ecorr/V icorr/(A·cm−2 ) RP/(Ω·cm−2 ) 基样 −0.7989 6.0771×10−6 4293 S1 −0.8780 7.0796×10−8 368480 S3 −0.7390 1.2239×10−6 21315 S5 −0.8777 3.6157×10−7 72150 3 结论 (1) ZAlSi12 合金在微弧氧化处理时，向电解液 中加入 Li2SO4，可增加氧化膜的厚度；当加入质量 为 40 g 时，获得氧化膜厚度可达 197 µm，但由扫 描电镜像可观察到该反应过程剧烈，最终试样表面 粗糙. (2) 电解液中加入 10 g 的 Li2SO4 可一定程度 上降低微弧氧化熔融物的黏度，使得氧化膜以平面 铺展的方式生长. (3) Li2SO4 加入前，氧化膜主要由 α-Al2O3 相 和少量的莫来石相组成，同时可以检测到基体 Al 和 Si 的存在；Li2SO4 加入后膜层中出现 γ-Al2O3 相，并且 Al 和 Si 相的衍射峰消失. (4) 电解液中加入 Li2SO4 且经微弧氧化处理 得到的试样耐腐蚀性能优于未经微弧氧化处理的 试样. 参 考 文 献 [1] Lai X M, Kang Z X, Li Y Y. Duplex surface modification combined with micro-arc oxidation and polymer plating on AZ31 magnesium alloy and their functional properties. Chin J Nonferrous Met, 2011, 21(6): 1299 (赖晓明, 康志新, 李元元. AZ31 镁合金微弧氧化与有机镀 膜的复合表面改性及功能特性. 中国有色金属学报, 2011, 21(6): 1299) [2] Ya Y, Guo F, Li P F, et al. Effect of cerium on the struc￾ture and properties of micro-arc oxidation ceramic coat￾ings of zircalloy-4. Rare Met Mater Eng, 2010, 39(8): 1443 (娅娅, 郭锋, 李鹏飞, 等. 铈对 Zr-4 合金微弧氧化陶瓷膜结 构和性能的影响. 稀有金属材料与工程, 2010, 39(8): 1443) [3] Zhu M H, Cai Z B, Lin X Z, et al. Fretting wear behaviour of ceramic coating prepared by micro-arc oxidation on Al– Si alloy. Wear, 2007, 263(1-6): 472 [4] Zhang X, Shao Z C, Qi D. Effect of TiO2 powder on the performance of magnesium alloy micro-arc oxidation ce￾ramic coating. Rare Met Mater Eng, 2011, 40(Suppl 2): 495 (张璇, 邵忠财, 齐丹. TiO2 粉体对镁合金微弧氧化陶瓷膜 性能的影响. 稀有金属材料与工程, 2011, 40(增刊 2): 495) [5] Ma Y, Liu N, Wang Y S, et al. Effect of chromate additive on corrosion resistance of MAO coatings on magnesium al￾loys. J Chin Ceram Soc, 2011, 39(9): 1493 (马颖, 刘楠, 王宇顺, 等. 铬酸盐对镁合金微弧氧化膜耐蚀 性的影响. 硅酸盐学报, 2011, 39(9): 1493) [6] Li J F, Fang K M, Xiong R Z, et al. Wear resistance properties of micro-arc oxidized ceramic layer. J Univ Sci Technol Beijing, 2003, 25(6): 542 (李金富, 方克明, 熊仁章, 等. 铝合金微弧氧化陶瓷层的耐 磨性. 北京科技大学学报, 2003, 25(6): 542) [7] Lu L H, Shen D J, Zhang J W, et al. Evolution of micro￾arc oxidation behaviors of the hot-dipping aluminum coat￾ings on Q235 steel substrate. Appl Surf Sci, 2011, 257(9): 4144 [8] Liu W H, Liu W B, Bao A L. Microstructure and proper￾ties of ceramic coatings on 7N01 aluminum alloy by micro￾arc oxidation. Procedia Eng, 2012, 27: 828 [9] Ding H Y, Dai Z D, Skuiry S C, et al. Corrosion wear be￾haviors of micro-arc oxidation coating of Al2O3 on 2024Al in different aqueous environments at fretting contact. Tri￾bol Int, 2010, 43(5/6): 868 [10] Krishna L R, Poshal G, Sundararajan G. Influence of elec￾trolyte chemistry on morphology and corrosion resistance of micro arc oxidation coatings deposited on magnesium. Metall Mater Trans A, 2010, 41(13): 3499 [11] Wang Y H, Liu X D, Zhang Y P, et al. Characterization of micro-arc oxidation coating on surface of ZAlSi12Cu2Mg1 alloy in the electrolyte containing Li2CO3. Rare Met Mater Eng, 2010, 39(Suppl 1): 305 (王颖辉, 刘向东, 张雅萍, 等. 含 Li2CO3 的电解液中形 成 ZAlSi12Cu2Mg1 合金微弧氧化膜的表征. 稀有金属材 料与工程, 2010, 39(增刊 1): 305)