[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5695/JKISE.2016.49.2.141

Deposition and Characterization of Electrophoretic Paint on AZ31 Magnesium Alloy

Nguyen, Van Phuong (Surface Technology Division, Korea Institute of Materials Science)
Moon, Sungmo (Surface Technology Division, Korea Institute of Materials Science)

Publication Information

Journal of the Korean institute of surface engineering / v.49, no.2, 2016 , pp. 141-146 More about this Journal

Abstract

In this study, electrophoretic paint (E-paint) was deposited on the knife-abraded surface of AZ31 magnesium alloy (AZ31), and its adhesion and corrosion resistance were examined by tape peel-test and salt spray test, respectively. E-paint started to deposit on AZ31 Mg alloy after an inductance time and pores were found in the E-paint layer which is ascribed to hydrogen bubbles generated on the surface during the painting process. The pores disappeared after curing for 15 min at $160^{\circ}C$ . The E-paint on AZ31 exhibited good adhesion after immersion in deionized water for 500 h at $40^{\circ}C$ . The E-paint sample without scratch showed no corrosion after 1500 h of salt spray test. However, on the scratched sample, blisters were visible adjacent to the scratched sites after 500 h of salt spray test.

Keywords

Magnesium alloy; Electrophoretic paint; Adhesion; Corrosion resistance;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)

Reference
Cited By KSCI

1	H.E. Friedrich and B.L. Mordike, Magnesium Technology: Metallurgy, Design Data, Applications, Springer, Berlin (2006).
2	Y. Kojima, Platform Science and Technology for Advanced Magnesium Alloys, Mater. Sci. Forum, 350 (2000) 3-18.
3	Kainer KU. Magnesium Alloys and their Applications, Wiley-VCH Verlag GmbH (2006).
4	CRC handbook of Chemistry and Physics. 61st ed. CRC Press Inc. (1980-81).
5	J.E. Gray, B. Luan, Protective coatings on magnesium and its alloys - a critical review, J. Alloy Compd., 336 (2002) 88-113. DOI
6	L. Besra, M. Liu, A review on fundamentals and applications of electrophoretic deposition (EPD), Prog. Mater. Sci., 52 (2007) 1-61. DOI
7	F. Beck, Fundamental aspects of electrodeposition of paint, Prog. Org. Coat., 4 (1976) 1-60. DOI
8	N.V. Phuong, K.H. Lee, D. Chang, M. Kim, S. Lee, S. Moon, Zinc phosphate conversion coatings on magnesium alloys - a review, Met. Mater. Int., 19 (2013) 273-281. DOI
9	R.G. Hu, S. Zhang, J. F. Bu, C.J. Lin, G.L. Song, Recent progress in corrosion protection of magnesium alloys by organic coatings, Prog. Org. Coat., 73 (2012) 129-141. DOI
10	J. Zhang, C. Wu, Corrosion protection behavior of AZ31 magnesium alloy with cathodic electrophoretic coating pretreated by silane, Prog. Org. Coat., 66 (2009) 387-392. DOI
11	S. Moon, C. Yang, S.I. Pyun, A novel method to detect cathodic second-phase particles in Mg alloys, J. Solid State Electrochem., 19 (2015) 3491-3499. DOI
12	N.V. Phuong, S. Moon, Deposition and characterization of E-paint on magnesium alloys, Prog. Org. Coat. 89 (2015) 91-99. DOI
13	S. Moon, A blade-abrading method for surface pretreatment of Mg alloys, J. Kor. Inst. Surf. Eng., 48 (2015) 194-198. DOI
14	N.M. Acamovic, D.M. Drazic, V.B. Miskovic-Stankovic, Influence of substrate on the formation and growth kinetics of cathodic electrocoat paint, Prog. Org. Coat., 25 (1995) 293-307. DOI
15	C.M. Reddy, R.S. Gaston, C.M. Weikart, H.K. Yasuda, Influence of surface pretreatment and electrocoating parameters on the adhesion of cathodic electrocoat to the Al alloy surfaces, Prog. Org. Coat., 33 (1998) 225-231. DOI
16	ASTM standard D3359-02, ASTM International, 06.01 (2004).
17	ASTM standard B117-03, ASTM International, 03.02 (2004).