Rev. Met. Paris
Volume 101, Number 7-8, July-August 2004Surfaces et revêtements
|Page(s)||551 - 558|
|Section||Articles techniques commmuns "Stahl und Eisen" - "Revue de Métallurgie"|
|Published online||27 September 2004|
Selection and use of coated advanced high-strength steels for automotive applications
The hot-dip coating process faces a particular challenge with the production of high-strength steels. The backdrop to this challenge in the case of the high-strength steels is the enrichment of alloying elements necessary to control the microstructure at the steel's surface. These elements diffuse to the strip surface during the annealing treatment in the furnace and affect the wetting action of the molten zinc. The hot-dip galvanizing of high-strength steels has been tested in numerous laboratory and field trials. New methods for improving zinc coatability have been developed around the world. A focal point of the work at ThyssenKrupp Stahl AG has for this reason lain in the development of a new generation of multiphase steels that achieve an optimum surface quality also in conventional hot-dip coating lines.
© La Revue de Métallurgie, 2004
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