Figure 5
From: Super anticorrosion of aluminized steel by a controlled Mg supply
Results of the salt spray test for the samples with a 0.5 μm-thick Mg layer. The results of pristine aluminized steel without the Mg layer are included for comparison. (a) Optical photographs showing the appearance of red rust. (b) Enlarged optical photographs for the samples showing the first appearance of red rust. The red arrows indicate the red rust. (c) A bar graph was drawn based on the time when red rust began to appear.
