Corrosion Behavior of Pure Mg Extrudate

The effect of grain size on corrosion behavior of pure Mg extrudate was evaluated via various method. The pure Mg extrudates with different grain size were prepared by indirect extrusion followed by heat treatment. With increase of average grain size, current density was slightly increased. No obvio...

Full description

Saved in:
Bibliographic Details
Published in:AIP conference proceedings 2012-03
Main Authors: Yim, Chang Dong, Kim, Young Min, Park, Sung Hyuk, Kim, Ha-Sik, Moon, Byoung-Gi, You, Bong Sun
Format: Article
Language:English
Subjects:
Cathodic polarization
Corrosion
Extrusions
Grain size
Joining
Magnesium
Meetings
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of grain size on corrosion behavior of pure Mg extrudate was evaluated via various method. The pure Mg extrudates with different grain size were prepared by indirect extrusion followed by heat treatment. With increase of average grain size, current density was slightly increased. No obvious feature was not observed on the surface of specimen during cathodic polarization. In the case of specimen with small and homogeneous grain size, corrosion occurred uniformly on the surface of specimen. But in the case of specimen with large and inhomogeneous grain size, corrosion occurred locally. It was concluded that the corrosion behavior of pure Mg extrudate was strongly dependent on grain size and smaller and more homogeneous grain size was more favorable to higher corrosion resistance of pure Mg.
ISSN:0094-243X