Formation of self-repairing anodized film on ACM522 magnesium alloy by plasma electrolytic oxidation

Corrosion Science

Volumn 73, Issue , 2013, Pages 188-195

  Yagi, Shunsuke ^a   Kuwabara, Kosuke ^b   Fukuta, Yuko ^b   Kubota, Kohei ^c   Matsubara, Eiichiro ^b  

^a Osaka Prefecture University   (Japan)

^b KYOTO UNIVERSITY   (Japan)

^c Alconix Diecast Suzhou Co Ltd   (China)

Author keywords

A. Alloy; A. Magnesium; B. Polarization; C. Anodic films

Indexed keywords

ANODIC FILMS; ANODIZED FILM; CORROSION BEHAVIOR; PHOSPHATE SOLUTIONS; PLASMA ELECTROLYTIC OXIDATION; SALT SPRAY TEST; SELF REPAIRING; THERMODYNAMIC EQUILIBRIUM CONSTANT;

ALLOYS; ELECTROLYSIS; EQUILIBRIUM CONSTANTS; MAGNESIUM ALLOYS; MAGNESIUM CASTINGS; OXIDATION; SILICATES;

REPAIR;

EID: 84878356934     PISSN: 0010938X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.corsci.2013.03.035     Document Type: Article

References (38)

1. Gray J.E., Luan B. Protective coatings on magnesium and its alloys - a critical review. J. Alloy. Compd. 2002, 336:88.
2. Yagi S., Sengoku A., Kubota K., Matsubara E. Surface modification of ACM522 magnesium alloy by plasma electrolytic oxidation in phosphate electrolyte. Corros. Sci. 2012, 57:74.
3. Song G., Atrens A., Wu X., Zhang B. Corrosion behaviour of AZ21 AZ501 and AZ91 in sodium chloride. Corros. Sci. 1998, 40(10):1769.
4. Hara N., Kobayashi Y., Kagaya D., Akao N. Formation and breakdown of surface films on magnesium and its alloys in aqueous solution. Corros. Sci. 2007, 49:166.
5. Zhao M.-C., Schmutz P., Brunner S., Liu M., Song G.-L., Atrens A. An exploratory study of the corrosion of Mg alloys during interrupted salt spray testing. Corros. Sci. 2009, 51:1277.
6. Latimer W.M. The Oxidation States of the Elements and Their Potentials in Aqueous Solutions 1959, Prentice-hall, Inc., Englewood Cliffs, NJ. second ed.
7. M. Pourbaix, Atlas of Electrochemical Equilibria in Aqueous Solutions, Cebelcor, Brüssel, 1966.
8. Wang Y., Wang J., Zhang J., Zhang Z. Characteristics of anodic coatings oxidized to different voltage on AZ91D Mg alloy by micro-arc oxidization technique. Mater. Corros. 2005, 56(2):88.
9. Ghasemi A., Raja V.S., Blawert C., Dietzel W., Kainer K.U. Study of the structure and corrosion behavior of PEO coatings on AM50 magnesium alloy by electrochemical impedance spectroscopy. Surf. Coat. Technol. 2008, 202:3513.
10. Hawke D., Albright D.L. A phosphate-permanganate conversion coating for magnesium. Met. Finish. 1995, 93:34.
11. Murakami K., Hino M., Nakai K., Kobayashi S., Saijo A., Kanadani T. Mechanism of corrosion protection of anodized magnesium alloys. Mater. Trans. 2008, 49(5):1057.
12. Arrabal R., Matykina E., Viejo F., Skeldon P., Thompson G.E. Corrosion resistance of WE43 and AZ91D magnesium alloys with phosphate PEO coatings. Corros. Sci. 2008, 50:1744.
13. Arrabal R., Pardo A., Merino M.C., Mohedano M., Casajús P., Matykina E., Skeldon P., Thompson G.E. Corrosion behaviour of a magnesium matrix composite with a silicate plasma electrolytic oxidation coating. Corros. Sci. 2010, 52:3738.
14. Srinivasan P.B., Blawert C., Dietzel W. Effect of plasma electrolytic oxidation coating on the stress corrosion cracking behaviour of wrought AZ61 magnesium alloy. Corros. Sci. 2008, 50:2415.
15. Liang J., Srinivasan P.B., Blawert C., Störmer M., Dietzel W. Electrochemical corrosion behaviour of plasma electrolytic oxidation coatings on AM50 magnesium alloy formed in silicate and phosphate based electrolytes. Electrochim. Acta 2009, 54:3842.
16. Liang J., Srinivasan P.B., Blawert C., Dietzel W. Influence of pH on the deterioration of plasma electrolytic oxidation coated AM50 magnesium alloy in NaCl solutions. Corros. Sci. 2010, 52:540.
17. Bonilla F.A., Berkani A., Liu Y., Skeldon P., Thompson G.E., Habazaki H., Shimizu K., John C., Stevens K. Formation of anodic films on magnesium alloys in an alkaline phosphate electrolyte. J. Electrochem. Soc. 2002, 149(1):B4.
18. Zhang R.F., Xiong G.Y., Hu C.Y. Comparison of coating properties obtained by MAO on magnesium alloys in silicate and phytic acid electrolytes. Curr. Appl. Phys. 2010, 10:255.
19. Verdier S., Boinet M., Maximovitch S., Dalard F. Formation, structure and composition of anodic films on AM60 magnesium alloy obtained by DC plasma anodising. Corros. Sci. 2005, 47:1429.
20. Hsiao H.-Y., Tsung H.-C., Tsai W.-T. Anodization of AZ91D magnesium alloy in silicate-containing electrolytes. Surf. Coat. Technol. 2005, 199:127.
21. Yerokhin A.L., Nie X., Leyland A., Matthews A., Dowey S.J. Plasma electrolysis for surface engineering. Surf. Coat. Technol. 1999, 122:73.
22. Liu F., Shan D., Song Y., Han E.-H., Ke W. Corrosion behavior of the composite ceramic coating containing zirconium oxides on AM30 magnesium alloy by plasma electrolytic oxidation. Corros. Sci. 2011, 53:3845.
23. 2-containing coatings on AZ31 magnesium alloys prepared by plasma electrolytic oxidation. Corros. Sci. 2012, 62:104.
24. Li Z., Jing X., Yuan Y., Zhang M. Composite coatings on a Mg-Li alloy prepared by combined plasma electrolytic oxidation and sol-gel techniques. Corros. Sci. 2012, 63:358.
25. Guo X., Du K., Guo Q., Wang Y., Wang F. Experimental study of corrosion protection of a three-layer film on AZ31B Mg alloy. Corros. Sci. 2012, 65:367.
26. Bockris J.O'M., Reddy A.K.N. Modern Electrochemistry 2B Electronics in Chemistry, Engineering, Biology, and Environmental Science 2001, Kluwer Academic/Plenum Publishers, New York, p. 1661. second ed.
27. Wranglén G. An Introduction to Corrosion and Protection of Metals 1985, vol. 247. Chapman and Hall, London.
28. Song G., Atrens A., St John D., Wu X., Nairn J. The anodic dissolution of magnesium in chloride and sulphate solutions. Corros. Sci. 1997, 39:1981.
29. Song G., Atrens A. Recent insights into the mechanism of magnesium corrosion and research suggestions. Adv. Eng. Mater. 2007, 9(3):177.
30. Gulbrandsen E. Anodic behaviour of Mg in HCO3-/CO32- buffer solutions. Quasi-steady measurements. Electrochim. Acta 1992, 37:1403.
31. Bender S., Goellner J., Heyn A., Schmigalla S. A new theory for the negative difference effect in magnesium corrosion. Mater. Corros. 2011, 62(9999):1.
32. Marshall W.L. Amorphous silica solubilities-I. Behavior in aqueous sodium nitrate solutions; 25-300°C, 0-6 molal. Geochim. Cosmochim. Acta 1980, 44:907.
33. Marshall W.L., Warakomski J.M. Amorphous silica solubilities-II. Effect of aqueous salt solutions at 25°C. Geochim. Cosmochim. Acta 1980, 44:915.
34. Fournier R.O., Marshall W.L. Amorphous silica solubilities at 25-300°C and apparent cation hydration numbers in aqueous salt solutions using the concept of effective density of water. Geochim. Cosmochim. Acta 1983, 47:587.
35. Faust S.D., Aly O.M. Chemistry of Water Treatment 1998, Ann Arbor Press, Chelsea, Mich. second ed.
36. Nordstrom D.K., Munoz J.L. Geochemical Thermodynamics 1994, Blackwell Scientific Publications, Boston.
37. Parks J.L., Edwards M. Boron removal via formation of magnesium silicate solids during precipitative softening. J. Environ. Eng. 2007, 133(2):149.
38. Critical Stability Constants 1976, Plenum Press, New York. R.M. Smith, A.E. Martell (Eds.).