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Shin, Hyung-Joon
Nanoscale Materials Science Lab (NMSL)
Research Interests
  • Scanning tunneling microscopy, surface science, interface science, nanomaterials

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Role of alloyed Y in improving the corrosion resistance of extruded Mg-Al-Ca-based alloy

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Title
Role of alloyed Y in improving the corrosion resistance of extruded Mg-Al-Ca-based alloy
Author
Baek, Soo-MinKang, Jeong SuShin, Hyung-JoonYim, Chang DongYou, Bong SunHa, Heon-YoungPark, Sung Soo
Keywords
A. Alloy; A. Magnesium; B. Weight loss; C. Pitting corrosion
Issue Date
201704
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CORROSION SCIENCE, v.118, no., pp.227 - 232
Abstract
We report that alloying with Y remarkably enhances the corrosion resistance of extruded Mg-Al-Ca-based alloy. The corrosion rates, measured by immersion tests in 0.6M NaCl solution at 25°C, were 0.31 and 1.84mmy-1 for the Mg-6Al-1Zn-0.5Ca-0.3Mn (wt.%) alloys with and without 0.25wt.% Y, respectively. The improved corrosion resistance is mainly attributed to a change in the type of Al-containing intermetallic particles toward reducing their electrochemical nobility, resulting in reduced H2 evolution rate during corrosion.
URI
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DOI
http://dx.doi.org/10.1016/j.corsci.2017.01.022
ISSN
0010-938X
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