Speaker
Dongdong Qu
(The University of Queensland)
Description
The 55Al-Zn-1.6Si alloy is widely used in hot-dip galvanizing to coat steel and displays a multilayered microstructure (steel substrate/intermetallic compound (IMC) layer/coating overlay) that offers protection from corrosion. Trace level (less than a few tens of ppm) V and Cr are hypothesized to influence the corrosion performance of the coated steel via localized segregation. This work investigates the distribution of trace V and Cr using synchrotron X-ray fluorescence microscopy (XFM) and scanning transmission electron microscopy (STEM), and discusses the mechanism of trace V and Cr distribution during coating formation.
Primary authors
Dongdong Qu
(The University of Queensland)
Matthew Gear
(University of Queenslnd)
Dr
Nega Setargew
(Product Innovation and Technology, Bluescope Ltd)
Dr
Wayne Renshaw
(Product Innovation and Technology, Bluescope Ltd)
Dr
Stuart McDonald
(The University of Queensland)
Prof.
David StJohn
(The University of Queensland)
Dr
David Paterson
(The Australian Synchrotron, Clayton, Victoria 3168, Australia )
Kazuhiro Nogita
(The University of Queensland)
