Corrosion resistance and adhesion properties of the chromium-free coating using an urethane-base resin for AZ91E magnesium alloy

被引：1

作者：

Chino, Y ^{[1
]}

Mori, Y

Ippongi, K

Mabuchi, M

机构：

[1] Natl Inst Adv Ind Sci & Technol, Inst Struct & Engn Mat, Nagoya, Aichi 4638560, Japan

[2] Aichu Rika Co, Ena 5097126, Japan

[3] Itochu Polymer Inc, Nagoya, Aichi 4530862, Japan

来源：

MATERIALS TRANSACTIONS | 2002年 / 43卷 / 03期

关键词：

magnesium alloy; surface treatment; chromium free; corrosion resistance property; adhesion property;

D O I：

10.2320/matertrans.43.340

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion resistance and adhesion properties of a chromium-free (poison-free) coating using an urethane-base resin for AZ91E Magnesium alloy have been investigated by salt immersion tests and thermal and humid resistance tests. As a result of the salt immersion tests, the Corrosion resistance of the chromium-free coated specimen. as almost equal to that of the Chromium-based chemical conversion. Also, the thermal and humid resistance test, showed that no changes were found in the coating with an urethane resin base layer: however. exfoliation was observed in the coating with a phenolic resin base lay I er. In the coating with an urethane resin base layer. the boundaries between the base layer and the aluminum middle layer were relatively flat and there were no pores, though a lot of pores were observed between the base layer and the aluminum middle layer in the coating with a phenolic resin base layer. Therefore. it is suggested that the good adhesion properties of the chromium-free coating are related to the strong adhesion between the urethane resin base la er and the aluminum middle layer.

引用

页码：340 / 342

页数：3

共 18 条

[1]

ANDESIAN M, 1999, MAGNESIUM MAGNESIUM, P143

[2]

ANDESIAN M, 1999, MAGNESIUM MAGNESIUM, P158

[3]

AZKARATE I, 2000, P MAGN ALL THEIR APP, P475

[4] Microstructures and corrosion resistance of magnesium implanted with nitrogen ions [J].

Fukumoto, S ;

Yamamoto, A ;

Terasawa, M ;

Mitamura, T ;

Tsubakino, H .

MATERIALS TRANSACTIONS, 2001, 42 (07) :1232-1236

[5]

HAMA S, 2001, J JAPAN I LIGHT META, V51, P514

[6]

*JAP STAND ASS, 1995, JIS H 8651 PROC CORR

[7]

LANDKOF B, 2000, P MAGN ALL THEIR APP, P168

[8]

MINO M, 1991, HYOMEN GIJUTSU, V42, P811

[9] Polymer plating of 6-substituted-1, 3, 5-triazine-2, 4-dithiols on magnesium alloys and applications of the plated alloys [J].

Mori, K ;

Hirahara, H ;

Oishi, Y ;

Sasaki, H .

MATERIALS TRANSACTIONS, 2001, 42 (07) :1219-1224

[10]

OGATA M, 1998, HYOMEN GIJUTSU, V49, P971

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