Title

Carbonation of Mg powder to enhance the corrosion resistance of Mg-rich primers

Document Type

Article

Publication Date

11-1-2010

Department

Polymers and High Performance Materials

Abstract

This paper is a continuation of our investigation into the characteristic dichotomy of Mg-rich primers between accelerated salt-fog testing and natural weathering. Our earlier study suggested that magnesium powder reacted with atmospheric CO(2) to form a protective carbonate layer on its surface. In this study, magnesium powder was treated with aqueous carbonic acid to accelerate magnesium carbonate development. The treated magnesium powder was formulated into a Mg-rich primer and evaluated for its corrosion resistance. The Mg-rich primer formulated with the treated Mg powder performed better in the salt-fog test than the control primer based on untreated Mg powder. (C) 2010 Elsevier Ltd. All rights reserved.

Publication Title

Corrosion Science

Volume

52

Issue

11

First Page

3782

Last Page

3792