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Lee, Ki-Suk
Creative Lab. for Advanced Spin Systems (CLASS)
Research Interests
  • Magnetism, spintronics, spin dynamics, rare-earth free magnet

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Enhanced corrosion resistance of Mg-Sn-Zn-Al alloy by Y microalloying

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Title
Enhanced corrosion resistance of Mg-Sn-Zn-Al alloy by Y microalloying
Author
Lee, DaseulKim, BeomcheolLee, SooseokBaek, Soo-MinKim, Jong ChanSon, Hyeon-TaekLee, Jung GuLee, Ki-SukPark, Sung Soo
Issue Date
2019-04
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SCRIPTA MATERIALIA, v.163, pp.125 - 129
Abstract
A significant enhancement in corrosion resistance by Y microalloying was achieved for the Mg-8Sn-1Zn-1Al (wt%) alloy in the extruded condition. Average corrosion rates obtained by immersion tests in 0.6 M NaCl solution at 25 °C were 4.2 and 12.7 mm y−1 for the alloys with and without microalloying with 0.04 wt% Y, respectively. Microstructural investigations indicated that the enhanced corrosion resistance is a result of a transition in a type of second-phase particles toward lowering the difference in electrochemical nobility between the α-Mg and these particles, thereby reducing the susceptibility of the alloy to microgalvanic corrosion.
URI
https://scholarworks.unist.ac.kr/handle/201301/25854
URL
https://www.sciencedirect.com/science/article/pii/S1359646219300326?via%3Dihub
DOI
10.1016/j.scriptamat.2019.01.015
ISSN
1359-6462
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