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Jeong, Hu Young
UNIST Central Research Facilities (UCRF)
Research Interests
  • Soft material characterization such as graphene using a low kV Cs-corrected TEM
  • Insitu-TEM characterization of carbon-based materials using nanofactory STM holder for Li-ion battery application
  • Structural characterization of mesoporous materials using SEM & TEM
  • Interface analysis between various oxides and metals through Cs-corrected (S)TEM
  • Resistive switching mechanism of graphene oxide thin films for RRAM application

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Improved corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy by microalloying with Mn

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Title
Improved corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy by microalloying with Mn
Author
Ha, Heon-YoungKim, Hyeon JuBaek, Soo-MinKim, BeomcheolSohn, So-DamShin, Hyung-JoonJeong, Hu YoungPark, Sung HyukYim, Chang DongYou, Bong SunLee, Jung GuPark, Sung Soo
Issue Date
2015-12
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SCRIPTA MATERIALIA, v.109, pp.38 - 43
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 degrees 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 H-2 evolution rate, attained by a change in the type of Al-containing intermetallic particles, which led to a reduction of the particles' electrcichemical nobility. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved
URI
https://scholarworks.unist.ac.kr/handle/201301/17305
URL
http://www.sciencedirect.com/science/article/pii/S1359646215002961
DOI
10.1016/j.scriptamat.2015.07.013
ISSN
1359-6462
Appears in Collections:
UCRF_Journal Papers
MSE_Journal Papers
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