Initial stages of corrosion within Mg-Zn-Y-Zr alloy in 1 g/l NaCl solution

Corrosion behavior of as-cast and heat treated Mg-Zn-Zr-Y alloy was studied in 1 g/l NaCl solution. The as-cast alloy was the least resistant to pitting corrosion. Its Mg-Zn solid solution matrix was the structural constituent responsible for corrosion susceptibility due to the presence of Zn-lean r...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science 2000, Vol.35 (1), p.1-8
Main Authors: POPOV, I, STAROSVETSKY, D, SHECHTMAN, D
Format: Article
Language:English
Subjects:
Applied sciences
Casting alloys
Corrosion
Corrosion environments
Corrosion resistance
Corrosion resistant alloys
Exact sciences and technology
Grain boundaries
Heat treatment
Intermetallic phases
Magnesium
Materials science
Metals. Metallurgy
Pitting (corrosion)
Sodium chloride
Solid solutions
Zinc
Zirconium base alloys
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Corrosion behavior of as-cast and heat treated Mg-Zn-Zr-Y alloy was studied in 1 g/l NaCl solution. The as-cast alloy was the least resistant to pitting corrosion. Its Mg-Zn solid solution matrix was the structural constituent responsible for corrosion susceptibility due to the presence of Zn-lean regions. Homogenization of the Zn distribution within the matrix significantly increased the corrosion resistance of the alloy. Grain boundaries, which contain intermetallic phases, were resistant to corrosion attack, thus impeding corrosion propagation.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1004734725783