Corrosion behaviour of zinc-nickel alloy coatings electrodeposited in additive free chloride baths

被引：9

作者：

Khan, R. ^{[1
]}

Mehmood, M. ^{[1
]}

Rizwan, R. ^{[1
]}

Ahmad, J. ^{[1
]}

Ul Hasan, M. ^{[1
]}

Iqbal, Z. ^{[1
]}

Mudassar, T. ^{[1
]}

Aslam, M. ^{[1
]}

机构：

[1] Pakistan Inst Engn & Appl Sci, Dept Chem & Mat Engn, Natl Ctr Nanotechnol, Islamabad 45650, Pakistan

来源：

CORROSION ENGINEERING SCIENCE AND TECHNOLOGY | 2011年 / 46卷 / 07期

关键词：

Zinc-nickel alloy coatings; Salt spray test; Nanocrystallinity; HETEROGENEITY; RESISTANCE; SIZE;

D O I：

10.1179/147842210X12741768645794

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion behaviour of nanocrystalline Zn-Ni alloy coatings (with 3 to 18 at-%Ni) electrodeposited on steel substrate from additive free chloride baths by DC plating has been investigated by measurement of open circuit potential with time and neutral salt spray test. The alloy coatings containing up to 16 at-%Ni exhibited an increase in resistance to the appearance of white and red rust with increasing Ni content. The resistance to the appearance of white rust and ability to protect the underlying steel substrate decreased with further increasing Ni content. This has been considered to be due to reduced passivating ability of the alloy coating with a significant rise in the grain size above 50 nm.

引用

页码：755 / 761

页数：7

共 14 条

[1] Effects of grain size on the electrochemical corrosion behaviour of electrodeposited nanocrystalline Fe coatings in alkaline solution
Afshari, Vahid
Dehghanian, Changiz
[J]. CORROSION SCIENCE, 2009, 51 (08) : 1844 - 1849
[2] RECENT STUDY ON THE MECHANISM OF THE ELECTRODEPOSITION OF IRON-GROUP METAL-ALLOYS
AKIYAMA, T
FUKUSHIMA, H
[J]. ISIJ INTERNATIONAL, 1992, 32 (07) : 787 - 798
[3] Alfantazi M., 1996, J APPL ELECTROCHEM, V26, P1225
[4] Cuilty B D, 1978, ELEMENTS XRAY DIFFRA
[5] Corrosion resistance of Zn-Ni alloy coatings in industrial production
Fratesi, R
Roventi, G
[J]. SURFACE & COATINGS TECHNOLOGY, 1996, 82 (1-2) : 158 - 164
[6] HALL DE, 1983, PLAT SURF FINISH, V70, P59
[7] Koch CC, 2007, STRUCTURAL NANOCRYSTALLINE MATERIALS: FUNDAMENTALS AND APPLICATIONS, P1, DOI 10.1017/CBO9780511618840
[8] The degradation of the corrosion resistance of sputter-deposited chromium-titanium alloys by nanoscale heterogeneity
Mehmood, M
Akiyama, E
Habazaki, H
Kawashima, A
Asami, K
Hashimoto, K
[J]. CORROSION SCIENCE, 1999, 41 (09) : 1871 - 1890
[9] Mehmood M, 1999, CORROS SCI, V41, P477, DOI 10.1016/S0010-938X(98)00130-9
[10] Experimental evidence for the critical size of heterogeneity areas for pitting corrosion of Cr-Zr alloys in 6 M HCl
Mehmood, M
Zhang, BP
Akiyama, E
Habazaki, H
Kawashima, A
Asami, K
Hashimoto, K
[J]. CORROSION SCIENCE, 1998, 40 (01) : 1 - 17

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