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THE ROLE OF “CRATERING” IN THE PROCESSING AND PROPERTIES OF GALVANNEALED STEEL SHEET
Technical Paper
2001-01-0084
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
Craters in galvannealed coatings on steel sheet are depressions caused by non-uniform diffusive growth. Correlations have been sought between “crater” densities in galvannealed sheet steel and friction, powdering, and paint adherence, as relevant to the appearance, corrosion resistance and processing of auto body panels. Crater densities were established on a series of samplings from major producers, and related to frictional measurements from a binder-radius simulator, powdering levels from bend testing, and paint adherence assessments from a stone-chipping test. Results suggest that increased crater density decreases powdering, but does not aid in lubrication. In fact, decreased powdering could be correlated with increased friction levels. A strong correlation was found between increased crater density and increased paint adherence.
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Citation
Hale, P., Wright, R., and Goodwin, F., "THE ROLE OF “CRATERING” IN THE PROCESSING AND PROPERTIES OF GALVANNEALED STEEL SHEET," SAE Technical Paper 2001-01-0084, 2001, https://doi.org/10.4271/2001-01-0084.Also In
References
- Attwood, Brian “Development of Coated Flat Rolled Products for Automotive End Use” IISI Twenty-Eighth Annual Meetings and Conference Colorado Springs USA 1994
- van der Heiden, A. Burghardt, A.J.C. van Koesveld, W. van Perlstein, E.B. Spanjers, M.G.J. “Galvanneal Microstructure and Anti-Powdering Process Windows.” The Physical Metallurgy of Zinc Coated Steel TMS/AIME Conf. Proc. SanFrancisco Feb. 27 Mar. 3 1994
- van Koesveld, W. Lamberigts, M. van der Heiden, A. Bordignon, L. “Coating Microstructure Assessment and Control for Advanced Product Properties of Galvannealed IF Steels” Galvatech'95 Conference Proceedings 1995
- Nine, H.D. “Drawbead Forces in Sheet Metal Forming” Mechanics of Sheet Metal Forming Behavior and Deformation Analysis Plenum New York 1978
- Schurman, Theodore S. Wright, Roger N. “Micro-Mechanistic Interpretation of Tool/Workpiece Interactions” SAE World Conference Detroit Feb. 24-28 1992