Article ID Journal Published Year Pages File Type
1498179 Scripta Materialia 2015 6 Pages PDF
Abstract

We report that microalloying with Mn substantially enhances the corrosion resistance of extruded Mg–8Sn–1Zn–1Al alloy. The corrosion rates, measured by immersion tests in 0.6 M NaCl solution at 25 °C, were 4.37 and 246.72 mm y−1 for the quaternary alloys with and without 0.1 wt% Mn, respectively. The enhanced corrosion resistance due to Mn microalloying is attributed to reduced H2 evolution rate, attained by a change in the type of Al-containing intermetallic particles, which led to a reduction of the particles’ electrochemical nobility.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (96 K)Download as PowerPoint slide

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
Authors
, , , , , , , , , , , ,