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Application of Hot-Dip Zn-6%Al-3%Mg Alloy Coated Steel Sheet to Automotive Body
Technical Paper
2005-01-1330
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Nisshin steel has succeeded in the commercial production of a hot dip Zn-6%Al-3%Mg alloy coated steel sheet (ZAM) produced by continuous galvanizing. ZAM has a coating layer containing high content of Mg and so it has good bare corrosion resistance. The purpose of this paper is to show results from investigations aimed at evaluating ZAM for application in automotive body panels. Through tests for paintability, corrosion resistance, spot weldability and press formability, it is confirmed that ZAM shows good performance. This is especially true in terms of cosmetic and perforation corrosion resistance, when its performance is compared with that of galvanized (GI), electrogalvanized (EG) and galvanneal (GA) which are currently used in automotive bodies.
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Authors
- Takeshi Shimizu - Steel & Technology Development Labs., Nisshin Steel Co., Ltd.
- Atsushi Andoh - Steel & Technology Development Labs., Nisshin Steel Co., Ltd.
- Hiroshi Asada - Steel & Technology Development Labs., Nisshin Steel Co., Ltd.
- Shigeru Morikawa - Steel & Technology Development Labs., Nisshin Steel Co., Ltd.
Citation
Shimizu, T., Andoh, A., Asada, H., and Morikawa, S., "Application of Hot-Dip Zn-6%Al-3%Mg Alloy Coated Steel Sheet to Automotive Body," SAE Technical Paper 2005-01-1330, 2005, https://doi.org/10.4271/2005-01-1330.Also In
References
- Tiburcio A.C. Yergin, M.J. “U. S. Automotive Corrosion Trends: 1998 SAE (ACAP) Automotive Body Corrosion Survey Results,” SAE- 2003-01-1244
- Nagata K. et al “Nisshin Steel's Toyo Works Starts Up a State-of-the-Art Galvanizing Line,” Galvatech '04 6 th International Conference on Zinc and Zinc Alloy Coated Steel Sheet Chicago, IL 2004 185 196
- Tsujimura T. et al “Influence of Mg Content in Coating Layer and Coating Structure on Corrosion Resistance of Hot-dip Zn-Al-Mg Alloy Coated Steel Sheet,” Galvatech '01 5 th International Conference on Zinc and Zinc Alloy Coated Steel Sheet Brussels, Belgium 2001 145 152
- Yoshizaki F. et al “Atmospheric Corrosion Resistance of Hot Dip Zn-6%Al-3%Mg Alloy Coated Steel Sheets,” Galvatech '04 6 th International Conference on Zinc and Zinc Alloy Coated Steel Sheet Chicago, IL 2004 1025 1034
- Shimizu T. et al “Corrosion Protection Mechanism of Hot-dip Zn-6%Al-3%Mg Coated Steel Sheets,” 13 th Asian-Pacific Corrosion Control Conference Osaka, Japan 2003
- Davidson D. et al “Perforation Corrosion Performance of Autobody Steel Sheet in On-Vehicle and Accelerated Tests,” SAE 2003-01-1238