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- Shin, Hyung-Joon
- Nanoscale Materials Science Lab.
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Role of alloyed Y in improving the corrosion resistance of extruded Mg-Al-Ca-based alloy
- Author(s)
- Baek, Soo-Min, Kang, Jeong Su, Shin, Hyung-Joon, Yim, Chang Dong, You, Bong Sun, Ha, Heon-Young, Park, Sung Soo
- Issued Date
- 2017-04
- Citation
- CORROSION SCIENCE, v.118, 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.
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- ISSN
- 0010-938X
- Keyword (Author)
- Alloy, Magnesium, Weight loss, Pitting corrosion
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