High Temperature Oxidation Behavior And Alloying Reaction Of Hot-Dip Zn-Al Coating
Journal
10th International Conference on Zinc and Zinc Alloy Coated Steel Sheet, Galvatech 2015
Start Page
876
End Page
883
ISBN (of the container)
9781935117513
ISBN
9781935117513
Date Issued
2015-01-01
Author(s)
Abstract
High temperature oxidation and liquid-metal-induced embrittlement (LMIE) are commonly seen for galvanized steels during the hot stamping process. The high temperature oxidation behavior and alloying reaction of hot-dip Zn-Al coating on Mn-B steels during hot stamping was investigated in detail. The results show that the oxidation behavior depends on the atomic ratio of Al/(Zn + Fe) around the surface of the coating. Furthermore, a preheating treatment at 550°C can increase the atomic ratio of Al/(Zn + Fe) on the top surface due to the high affinity between aluminum and oxygen, which, in turn, improves the high temperature oxidation resistance.
Event(s)
10th International Conference on Zinc and Zinc Alloy Coated Steel Sheet, Galvatech, 2015, Toronto 31 May 2015 through 4 June 2015, Code 200461
Subjects
hot stamping
hot-dip Zn-Al coating
LMIE
oxidation
Type
conference paper