Effects of oxidation time on microstructures and properties of micro-arc oxidation coatings of AZ91D magnesium alloy

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals

Volumn 19, Issue 8, 2009, Pages 1385-1391

  Lü, Wei Ling ^a   Ma, Ying ^a   Chen, Ti Jun ^a   Xu, Wei Jun ^a,b   Yang, Jian ^a   Hao, Yuan ^a  

^a LANZHOU UNIVERSITY OF TECHNOLOGY   (China)

^b Gansu Lianhe University   (China)

Author keywords

Corrosion resistance; Invariable small current density; Magnesium alloy AZ91D; Micro arc oxidation; Wear resistance

Indexed keywords

ANODE VOLTAGES; AZ91D ALLOY; AZ91D MAGNESIUM ALLOYS; BONDING FORCES; COATING ADHESION; COATING THICKNESS; CORROSION AND WEAR RESISTANCE; INVARIABLE SMALL CURRENT DENSITY; MAGNESIUM ALLOY AZ91D; MAO COATINGS; MAXIMUM VALUES; MEASURING INSTRUMENTS; MICRO-ARC OXIDATION; OXIDATION TIME; RECIPROCATING FRICTION; SCRATCH TEST; SEM;

ALLOYS; CAVITY RESONATORS; CERIUM ALLOYS; COATINGS; CORROSION RESISTANCE; MAGNESIUM; MAGNESIUM ALLOYS; MICROSTRUCTURE; OXIDATION; SILICATES; SURFACE ROUGHNESS; THICKNESS MEASUREMENT;

WEAR RESISTANCE;

EID: 70349261257     PISSN: 10040609     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (17)

1. GRAY J E, LUAN B. Protective coatings on magnesium and its alloys-A critical review[J]. Journal of Alloys and Compounds, 2002, 336(1/2): 88-113.
2. MORDIKE B L, EBERT T. Magnesium properties-applications-potential[J]. Materials Science and Engineering, 2001, 302(1): 37-45.
3. YEROKHIN A L, NIE X, LEYLAND A, MATTHEWS A, DOWEY S J. Plasma electrolysis for surface engineering[J]. Surf Coat Tech, 1999, 122(2): 73-93.
4. ZHANG Rong-fa, SHAN Da-yong, HAN En-hou, ZENG Zhi-liang. Status and prospect of anodization on magnesium and its alloys[J]. The Chinese Journal of Nonferrous Metals, 2006, 16(7): 1136-1148.
5. YEROKHIN A L, NIE X, LEYLAND A, MATTHEWS A, DOWEY S J. Plasma electrolysis for surface engineering[J]. Surface and Coatings Technology, 1999, 122(2/3): 75-91.
6. JIANG Bai-ling, ZHANG Shu-fen, WU Guo-jian, LEI Ting-quan. Micro-flaw and phases constitution of ceramic coating formed by micro-arc oxidation on magnesium alloys and their influence on corrosion resistance[J]. The Chinese Journal of Nonferrous Metals, 2002, 12(3): 454-457.
7. HAO Jian-min, CHEN Hong, ZHANG Rong-jun, JIANG Bai-ling. Corrosion resistance of magnesium alloys micro-arc oxidation ceramic coating[J]. The Chinese Journal of Nonferrous Metals, 2003, 13(4): 988-991.
8. HAN I, CHOI J H, ZHAO B H, BAIK H K, LEE I S. Micro-arc oxidation in various concentration of KOH and structural change by different cut off potential[J]. Current Applied Physics, 2007, 7(S1): 23-27.
9. GUO H F, AN M Z. Growth of ceramic coatings on AZ91D magnesium alloys by micro-arc oxidation in aluminate-Fluoride solutions and evaluation of corrosion resistance[J]. Applied Surface Science, 2005, 246(1/3): 229-238.
10. CHEN F, ZHOU H, YAO B, QIN Z, ZHANG Q F. Corrosion resistance property of the ceramic coating obtained through micro-arc oxidation on the AZ31 magnesium alloy surfaces[J]. Surface and Coatings Technology, 2007, 201(9/11): 4905-4908.
11. YANG Xiao-fei, LIN Wen-guang, MAO Guang-lei. State of art and development trend of Mg alloy surface treatment[J]. Automobile Technology and Material, 2007(3): 10-13.
12. Lü Wei-ling, CHEN Ti-jun, MA Ying, XU Wei-jun, WANG Wei, HAO Yuan. Invariable small current density process of micro-arc oxidation of magnesium alloy AZ91D[J]. The Chinese Journal of Nonferrous Metals, 2008, 18(9): 1-6.
13. LIANG Yong-zheng. Study on micro-arc of magnesium alloy surfaces[D]. Lanzhou: Lanzhou University of Technology, 2004: 57.
14. LI Song. Investigation on preparation, characterization and performances of micro-arc oxidation coating on magnesium alloy[D]. Jilin: Jilin University, 2007.
15. Surface roughness[EB/OL]. http://baike.baidu.com/view/55599.htm, 2006-8-9.
16. XIA Tian. Study on bonding strength and compact-ability of ceramic coatings formed by micro-arc oxidation on magnesium alloys[D]. Xi'an: Xi'an University of Technology, 2005.
17. GUO Hong-fei, AN Mao-zhong, HUO Hui-bin, XU Shen. Effect of operating condition on micro-arc oxidation of magnesium alloys[J]. Materials Science and Technology, 2006, 14(6): 616-621.