journal article·2015-06

A aluminum coating with chromium-free passivating film formed on AZ91D magnesium alloy

Liyuan Niu, Shiuan-Ho Chang, Yichang Su, Dong Han, Guangyu Li

Publisher page

Abstract

Abstract An aluminized layer with strong adhesion was formed on the surface of AZ91D magnesium alloy which was impregnated in chromium-free passivating agent zirconate for passivating treatment. The coatings on the samples were examined to analyze the anodic polarization behavior, the mechanism of corrosion resistance, and the brittleness. As a result, it shows that corrosion resistance of aluminized magnesium alloy compared to galvanized film has been greatly improved. Besides, when the initial corrosion began to appear in the coatings, the corrosion rate of aluminized film is much lower than that of galvanized film on magnesium alloy. In addition, since the low brittleness of aluminized layer on magnesium alloy, the plating does not produce crack after bending.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Corrosion Behavior and Inhibition · Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (27)

Show source-provided references
1. Elementary steps and mechanism of electrodeposition of Al from complex hydride ions in tetrahydrofuran baths10.1016/S0022-0728(99)00444-1 ↗
2. Electrodeposition of Co Al alloys of different composition from the AlCl3–BPC–CoCl2 room temperature molten salt10.1016/S0013-4686(96)00382-9 ↗
3. Electrodeposition of aluminium from nonaqueous organic electrolytic systems and room temperature molten salts10.1016/0013-4686(96)00080-1 ↗
4. Electrodeposition of nanocrystalline metals and alloys from ionic liquids10.1002/anie.200350912 ↗
5. Electrodeposition of Al–Ni intermetallic compounds from aluminum chloride-N-(n-butyl) pyridinium chloride melt at room temperature10.1016/S0022-0728(01)00607-6 ↗
6. Electrodeposition of aluminium from room temperature AlCl3–TMPAC molten salts10.1016/S0013-4686(96)00271-X ↗
7. The electrodeposition of Al–Nb alloys from chloroaluminate electrolytes10.1016/S1288-3255(99)80010-0 ↗
8. Elementary steps and mechanism of electrodeposition of Al from complex hydride ions in tetrahydrofuran baths10.1016/S0022-0728(99)00443-X ↗
9. 27Al NMR spectroscopy studies on speciation of Al complex ions in AlCl3+LiAlH4 solutions in tetrahydrofuran for electroplating of Al110.1016/S0022-0728(97)00073-9 ↗
10. RDE and impedance study of anodic dissolution of aluminium in organic AlCl3/dimethylsulfone electrolytes10.1016/S0013-4686(98)00065-6 ↗
11. Deposition of aluminium on magnesium by a CVD process10.1016/j.surfcoat.2003.10.065 ↗
12. Steel cathodic protection afforded by zinc, aluminium and zinc/aluminium alloy coatings in the atmosphere10.1016/j.surfcoat.2004.04.023 ↗
13. Investigation of nanocrystalline zinc–nickel alloy coatings in an alkaline zincate bath10.1016/j.surfcoat.2004.04.062 ↗
14. Analysis of characteristics of vanadate conversion coating on the surface of magnesium alloy10.1016/j.jallcom.2014.08.044 ↗
15. High corrosion-resistant Ni–P/Ni/Ni–P multilayer coatings on steel10.1016/j.surfcoat.2004.11.004 ↗
16. Microstructure and performances of nanocrystalline zinc–nickel alloy coatings
17. Electrolytic ZrO2 coatings: I. Electrochemical aspects10.1149/1.2085904 ↗
18. Assessment of a one-step intelligent selfhealing vanadia protective coatings for magnesium alloys in corrosive media10.1016/j.electacta.2010.11.103 ↗
19. Smart self-healing anti-corrosion vanadia coating for magnesium alloys10.1016/j.porgcoat.2011.05.011 ↗
20. A black phosphate coating for C1008 steel10.1016/S0257-8972(03)00736-9 ↗
21. The effect of pH and role of Ni2+ in zinc phosphating of 2024-Al alloy: Part II: Microscopic studies with SEM and SAM10.1016/j.apsusc.2005.12.105 ↗
22. Microscopic local elements in the phosphating process10.1016/S0013-4686(03)00385-2 ↗
23. An investigation of the corrosion inhibition of pure aluminum in neutral and acidic chloride solutions10.1016/0013-4686(95)00472-6 ↗
24. Current efficiency studies of the zinc electrowinning process on aluminum rotating cylinder electrode (RCE) in sulfuric acid medium: influence of different additives10.1016/j.electacta.2007.04.112 ↗
25. Developments in electrode materials and electrolytes for aluminium–air batteries10.1016/j.jpowsour.2013.01.141 ↗
26. Inhibitor-doped sol–gel coatings for corrosion protection of magnesium alloy AZ3110.1016/j.surfcoat.2009.09.067 ↗
27. Electrodeposition of high corrosion resistance Cu/Ni–P coating on AZ91D magnesium alloy10.1016/j.apsusc.2011.06.006 ↗