Speaker
HEUNG YUN KIM
(POSCO / Technical Research Laboratories)
Description
ZnAlMg-based alloy hot-dip galvanized steel sheet, as known, has high corrosion resistance. Also, several types of composition systems are commercially produced and applied to various fields. However, these steel sheets characteristically contain up to 3% magnesium. The improvement of corrosion resistance is the attractive point of the product and the goal to pursue forever. In recent years, there is a demand for higher corrosion resistance in harsh corrosive environments. Therefore, the effects of corrosion resistance on the variation of Mg and Al contents were investigated, and main properties and performances were evaluated. New alloy coated steel with ultra high corrosion resistance was developed.
Keywords
Zn-Al-Mg alloy coatings, hot-dip galvanized, ultra high corrosion resistance
Author
HEUNG YUN KIM
(POSCO / Technical Research Laboratories)
Co-authors
Dr
MYUNGSOO KIM
(POSCO)
Dr
SUNGJOO KIM
(POSCO)