Please wait a minute...
Acta Metall Sin  2007, Vol. 43 Issue (6): 631-636     DOI:
Research Articles Current Issue | Archive | Adv Search |
Cite this article: 

. . Acta Metall Sin, 2007, 43(6): 631-636 .

Download:  PDF(406KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  Protective coatings were fabricated on the surface of SiCw/AZ91 Mg matrix composite by microarc oxidation (MAO) surface treatment technique. Microarc oxidation behaviors of SiCw/AZ91 composite were investigated by comparing with AZ91 Mg alloy. The corrosion resistance enhancement of the composite after MAO treatment was also evaluated by electrochemical method. The results show that, microarc oxidation behaviors of the composite are different from those of the alloy because the presence of SiC whisker has influenced the formation of barrier film at the initial stage of MAO. Compared with the alloy, the composite doesn’t exhibit ideal voltage evolution trend during MAO, especially at the early stage of MAO. And that for the composite, the time corresponding to occurrence of dielectric breakdown is longer than that of the alloy. This will result in corrosion of the composite in the electrolyte before occurrence of sparking discharge. Nonetheless, corrosion resistance of the composite still is improved by the MAO coating. After the composite is coated by MAO, the corrosion current is decreased and the corrosion potential is increased.
Key words:  Mg matrix composite      Microarc oxidation      Coatings      Corrosion resistance      
Received:  20 September 2006     
ZTFLH:  TG174.45  
Service
E-mail this article
Add to citation manager
E-mail Alert
RSS
Articles by authors

URL: 

https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2007/V43/I6/631

[1]Kojima Y,Kamado S.Mater Sci Forum,2005;488-489: 9
[2]Emley E F.Principles of Magnesium Technology.Oxford: Headington Hill Hall,Pergamon Press Ltd,1966
[3]Trzaskoma P P,McCafferty E,Crowe C R.J Electrochem Soc,1983;130:1804
[4]Hihara L H,Latanision R M.Int Mater Rev,1994;39: 245
[5]Yerokhin A L,Nie X,Leyland A,Matthews A,Dowey S J.Surf Coat Technol,1999;122:73
[6]Nie X,Meletis E I,Jiang J C,Leyland A,Yerokhin A L, Matthews A.Surf Coat Technol,2002;149:245
[7]Xue W B,Deng Z W,Lai Y C,Chen R Y,Zhang T H. Heat Treat Met,2000;25(1):1 (薛文斌,邓志威,来永春,陈如意,张通和.金属热处理,2000; 25(1):1)
[8]Zha Q X.An Introduction to Electrode Kinetics.2nd, Beijing:Science Press,1987:458 (查全性.电极过程动力学导论.第2版,北京:科学出版社, 1987:458)
[9]Jiang B L,Zhang S F,Wu G J.J Chin Soc Corros Prot, 2002;22:300 (蒋百灵,张淑芬,吴国建.中国腐蚀与防护学报,2002;22: 300)
[10]Yerokhin A L,Shatrov A,Samsonov V,Shashkov P,Ley- land A,Matthews A.Surf Coat Technol,2004;182:78
[11]Wang Y M,Jiang B L,Lei T Q,Guo L X.Tribology,2003; 23:371 (王亚明,蒋百灵,雷廷权,郭立新.摩擦学学报,2003;23: 371)
[12]Krishtal M M.Met Sci Heat Treat,2004;46:378
[13]Wang Y K,Xiong R Z,Sheng L,Li B S.Ordnance Mater Sci Eng,1998;21:25 (王永康,熊仁章,盛磊,李炳生.兵器材料科学与工程,1998; 21:25)
[14]Xue W B.Acta Metall Sin,2006;42:350 (薛文斌.金属学报,2006;42:350)
[15]Xue W B,Deng Z W,Chen R Y,Zhang T H.Heat Treat Met,2000;25(2):5 (薛文斌,邓志威,陈如意,张通和.金属热处理,2000;25(2): 5)
[16]Wu K,Wang Y Q,Zheng M Y.Mater Sci Forum,2007; 546-549:543
[1] SI Yongli, XUE Jintao, WANG Xingfu, LIANG Juhua, SHI Zimu, HAN Fusheng. Effect of Cr Addition on the Corrosion Behavior of Twinning-Induced Plasticity Steel[J]. 金属学报, 2023, 59(7): 905-914.
[2] XU Linjie, LIU Hui, REN Ling, YANG Ke. Effect of Cu on In-Stent Restenosis and Corrosion Resistance of Ni-Ti Alloy[J]. 金属学报, 2023, 59(4): 577-584.
[3] ZHAO Xiaofeng, LI Ling, ZHANG Han, LU Jie. Research Progress in High-Entropy Alloy Bond Coat Material for Thermal Barrier Coatings[J]. 金属学报, 2022, 58(4): 503-512.
[4] HUANG Yichuan, WANG Qing, ZHANG Shuang, DONG Chuang, WU Aimin, LIN Guoqiang. Optimization of Stainless Steel Composition for Fuel Cell Bipolar Plates[J]. 金属学报, 2021, 57(5): 651-664.
[5] ZHU Wenting, CUI Junjun, CHEN Zhenye, FENG Yang, ZHAO Yang, CHEN Liqing. Design and Performance of 690 MPa Grade Low-Carbon Microalloyed Construction Structural Steel with High Strength and Toughness[J]. 金属学报, 2021, 57(3): 340-352.
[6] WANG Xuemei, YIN Zhengzheng, YU Xiaotong, ZOU Yuhong, ZENG Rongchang. Comparison of Corrosion Resistance of Phenylalanine, Methionine, and Asparagine-Induced Ca-P Coatings on AZ31 Magnesium Alloys[J]. 金属学报, 2021, 57(10): 1258-1271.
[7] CHEN Yongjun, BAI Yan, DONG Chuang, XIE Zhiwen, YAN Feng, WU Di. Passivation Behavior on the Surface of Stainless Steel Reinforced by Quasicrystal-Abrasive via Finite Element Simulation[J]. 金属学报, 2020, 56(6): 909-918.
[8] Lin WEI,Zhijun WANG,Qingfeng WU,Xuliang SHANG,Junjie LI,Jincheng WANG. Effect of Mo Element and Heat Treatment on Corrosion Resistance of Ni2CrFeMox High-Entropy Alloyin NaCl Solution[J]. 金属学报, 2019, 55(7): 840-848.
[9] Wenqin WANG, Zhaoman WANG, Yulong LI, De WANG, Miao LI, Qing CHEN. Wear Behavior of Fe-WC/Metal Double Layer Coatings Fabricated by Resistance Seam Weld Method[J]. 金属学报, 2019, 55(4): 537-546.
[10] Xiubing LIANG, Jianwen FAN, Zhibin ZHANG, Yongxiong CHEN. Microstructure and Corrosion Properties of Aluminum Base Amorphous and Nanocrystalline Composite Coating[J]. 金属学报, 2018, 54(8): 1193-1203.
[11] Li FAN, Haiyan CHEN, Yaohua DONG, Xueying LI, Lihua DONG, Yansheng YIN. Corrosion Behavior of Fe-Based Laser Cladding Coating in Hydrochloric Acid Solutions[J]. 金属学报, 2018, 54(7): 1019-1030.
[12] Haiou YANG, Xuliang SHANG, Lilin WANG, Zhijun WANG, Jincheng WANG, Xin LIN. Effect of Constituent Elements on the Corrosion Resistance of Single-Phase CoCrFeNi High-Entropy Alloys in NaCl Solution[J]. 金属学报, 2018, 54(6): 905-910.
[13] Ke YANG, Mengchao U, Jialong AN, Wei NG. Research and Development of Maraging Stainless Steel Used for New Generation Landing Gear[J]. 金属学报, 2018, 54(11): 1567-1585.
[14] Erlin ZHANG, Xiaoyan WANG, Yong HAN. Research Status of Biomedical Porous Ti and Its Alloy in China[J]. 金属学报, 2017, 53(12): 1555-1567.
[15] Muqin LI, Haitao YAO, Fanghong WEI, Mingda LIU, Zan WANG, Shuhao PENG. The Microstructure and in Vivo and in Vitro Property of Multi-Component Composite Films on the Biomedical Pure Magnesium Surface[J]. 金属学报, 2017, 53(10): 1337-1346.
No Suggested Reading articles found!