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

Abstract:

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.

• Periodical: Materials Science Forum (Volume 1035)
• Pages: 545-553
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1035.545
• Online since: June 2021
• Authors: Yan Huang, Ren Bo Song*, Huan Jun Wei, Zhe Rui Zhang, Li Fang Yang
• Keywords: Fingerprint Resistant Board, Micro Friction and Wear Test, Neutral Salt Spray Test, Pure Zinc Coating, Zn-Al-Mg Coating

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