Role of surface functionalization on corrosion resistance and thermal stability of epoxy/glass flake composite coating on cold rolled steel

2018 ◽  
Vol 122 ◽  
pp. 180-188 ◽  
Author(s):  
H. Alhumade ◽  
R.P. Nogueira ◽  
A. Yu ◽  
A. Elkamel ◽  
L. Simon ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Corrosion Resistance ◽  
Composite Coating ◽  
Surface Functionalization ◽  
Rolled Steel ◽  
Cold Rolled Steel ◽  
Cold Rolled ◽  
Glass Flake ◽  
Thermal Stability Of

Abrasion Resistance and Corrosion Resistance of Chromium-Free Fingerprint-Resistant Zn and Zn-Al-Mg Coating Cold-Rolled Steel Sheets

2021 ◽  
Vol 1035 ◽  
pp. 545-553
Author(s):  
Yan Huang ◽  
Ren Bo Song ◽  
Huan Jun Wei ◽  
Zhe Rui Zhang ◽  
Li Fang Yang
Keyword(s):  
Corrosion Resistance ◽  
Salt Spray ◽  
Zinc Coating ◽  
Neutral Salt ◽  
Rolled Steel ◽  
Pure Zinc ◽  
Cold Rolled Steel ◽  
Steel Sheets ◽  
Long Time ◽  
Cold Rolled

The wear resistance and corrosion resistance of chromium-free fingerprint-resistant pure zinc and Zn-Al-Mg coated cold-rolled steel sheets were studied by micro-friction wear experiments and neutral salt spray experiments. Two products are worn for a long time with a large load (5N load, 50 times abrasion), the depth of wear zone of Zn-Al-Mg coating product is 9% shallower than that of pure zinc coating product, and the width of wear zone is 15.4% smaller. Both products still meet the requirements of use after corrosion. The corrosion resistance of two products after degreasing treatment was significantly reduced. The Mg and Al in the Zn-Al-Mg coating can hinder the progress of corrosion, so it has better corrosion resistance.

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