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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


Factors affecting the grain refinement of extruded Mg-6Zn-0.5Zr alloy by Ca addition

DC Field Value Language Kim, Beomcheol ko Hong, Chang Hee ko Kim, Jong Chan ko Lee, Si-Young ko Baek, Soo-Min ko Jeong, Hu Young ko Park, Sung Soo ko 2020-08-21T00:52:35Z - 2020-08-10 ko 2020-10 ko
dc.identifier.citation SCRIPTA MATERIALIA, v.187, pp.24 - 29 ko
dc.identifier.issn 1359-6462 ko
dc.identifier.uri -
dc.description.abstract We report that the grain size of an extruded Mg-6Zn-0.5Zr alloy is significantly reduced by the addition of Ca. The grain size was reduced from 4.2 to 1.6 mu m by the addition of 0.2 wt% Ca, leading to an increase in the yield strength to as high as 65 MPa. Microstructural analysis indicated that adding Ca to the alloy results in the co-presence of MgZn2 and Ca2Mg6Zn3 particles within the alpha-Mg matrix and the co-segregation of Zn and Ca at the grain boundaries. The factors responsible for such remarkable changes in the microstructure and tensile properties are also discussed. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. ko
dc.language 영어 ko
dc.title Factors affecting the grain refinement of extruded Mg-6Zn-0.5Zr alloy by Ca addition ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85086375323 ko
dc.identifier.wosid 000551272900006 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.scriptamat.2020.06.001 ko
dc.identifier.url ko
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