Corrosion Protection of Joining Areas in Magnesium Die-Cast and Sheet Products

Wen Yue Zheng; C. Derushie; Jason Lo; Elhachmi Essadiqi

doi:10.4028/www.scientific.net/MSF.546-549.523

Paper Titles

Microstructure and Mechanical Properties of New Particle-Disperse-Reinforced Mg Composite Mg- 6Al- 3B₂O₃- 1NaCl- 1CaCl₂
p.503

Measurement of Press Creep Stress Exponent of ZM6 Alloy at Room Temperature
p.509

Surface Modification of AZ91 Magnesium Alloy
p.513

Magnesium Films Deposited on Different Substrates via Arc PVD Method
p.519

Corrosion Protection of Joining Areas in Magnesium Die-Cast and Sheet Products
p.523

Effects of Post Heat Treatment on the Interfacial Characteristics of Aluminum Coated AZ91D Magnesium Alloy
p.529

Effect of Aging on Electrochemical Behavior of T6-Treated WE54 Mg Alloy
p.533

In Situ Observation of Initial Corrosion of AZ91 Alloy with Residual Stress in Wet-Dry Conditions Using Environmental Scanning Electron Microscope
p.537

Growth and Microstructure of Microarc Oxidation Coating on Al₁₈B₄w/AZ91 Mg Matrix Composite
p.543

HomeMaterials Science ForumMaterials Science Forum Vols. 546-549Corrosion Protection of Joining Areas in Magnesium...

Corrosion Protection of Joining Areas in Magnesium Die-Cast and Sheet Products

Abstract:

The common joining techniques for Mg sheet and die cast alloys such as riveting, friction-stir welding and adhesive bonding all introduce additional challenges for protection in the joining areas. First of all, the sheet products are prone to high rate of corrosion due to surface contamination. Introduction of iron-rich contaminants can be encountered from the friction-stir welding process. Although powder coating on top of conversion pre-treatments is practical for mitigating corrosion, the lap-shear adhesion of such surfaces can be negatively impacted when the adhesively bonded joints are exposed to a corrosion environment. Anodized surfaces are better in terms of their ability to retain adhesion strength, but their resistance to galvanic corrosion is an issue. Development of galvanically compatible coatings for steel rivets will benefit the adaptation of riveting as a joining technology for magnesium.

You might also be interested in these eBooks

Progress in Light Metals, Aerospace Materials and Superconductors

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 546-549)

Pages:

523-528

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.546-549.523

Citation:

Cite this paper

Online since:

May 2007

Authors:

Wen Yue Zheng, C. Derushie, Jason Lo, Elhachmi Essadiqi

Keywords:

Adhesive Bonding, Coating, Die Casting, Fastening, Friction Stir Welding (FSW), Galvanic Compatibility, Galvanic Corrosion, Mg Sheet, Riveting

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] S. Logan et al, Lightweight Magnesium Intensive Body Structure, SAE paper # 2006-01-0523.

Google Scholar

[2] J. Aragones, Development of the 2006 Corvette Z06 Structural Cast Magnesium Crossmember, SAE 2005-01-0340.

DOI: 10.4271/2005-01-0340

Google Scholar

[3] J. H. W. De wit, Inorganic and organic coatings", in , Corrosion Mechanisms in Theory and Practice, Eds. P. Marcus and J. Oudar, Copy right @Marcel Dekker Inc, (1995).

Google Scholar

[4] P. Su, A. Gerlich, M. Yamamoto And Th North, Friction stir spot welding of a range of Mg-alloys, paper to be published in the Proceedings of COM/CIM, (2006).

Google Scholar

[5] W. Zheng, C. Derushie, R. Zhang and J. Lo, Protection of Mg Alloys for Structural Applications in Automobiles, SAE Paper # 2004-01-0133, Detroit, USA. SAE, April, (2004).

DOI: 10.4271/2004-01-0133

Google Scholar

[6] Wenyue Zheng, R. Osborne , C. Derushie and Jason Lo , Corrosion Protection of Structural Magnesium Alloys: Recent Development, SAE paper #2005-01-0732, SAE (2005).

DOI: 10.4271/2005-01-0732

Google Scholar

[7] Su Xu, G. Williams, G. Shen, Mahi Sahoo, Richard Osborne, Bolt-load Retention Testing of Magnesium Alloys for Automotive Applications, 2006 paper #: 2006-01-0072, SAE, Detroit, MI, USA.

DOI: 10.4271/2006-01-0072

Google Scholar