Paper Title:
The Study on the Corrosion Resistance for Polyurethane Epoxy Resin Coating of AZ91D Magnesium Alloy
  Abstract

Magnesium alloys are more and more researched and used as engineering materials in recent years. In the paper, the AZ91D casting magnesium alloy was as basic material by the proper chemical pre-treatment and then was coated with epoxy resin (EP) coatings modified with polyurethane (PU) for protection. The coatings’ adhesion strength, hardness, and corrosion resistance were studied by electronic universal tester, pencil scratch hardness tester, immersion test and electrochemical test. The effect of polyurethane addition on the properties of the coating was ales investigated. The results show that PU / EP ratio of 20% mass fraction can make the basic alloy good mechanical properties and excellent corrosion resistance. The interpenetrating network formed between the epoxy resin modified with polyurethane is of more excellent mechanical and corrosion resistance than pure epoxy resin to protect the magnesium alloy matrix.

  Info
Periodical
Advanced Materials Research (Volumes 160-162)
Edited by
Guojun Zhang and Jessica Xu
Pages
661-665
DOI
10.4028/www.scientific.net/AMR.160-162.661
Citation
B. Y. Lou, L. Y. Dong, X. Li, "The Study on the Corrosion Resistance for Polyurethane Epoxy Resin Coating of AZ91D Magnesium Alloy", Advanced Materials Research, Vols. 160-162, pp. 661-665, 2011
Online since
November 2010
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Price
$32.00
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