Evaluation of the mechanical properties of Zn-Mg alloys with composition of Mg

Ji Min Yu, Jong Min Byun, Tae Yeob Kim, Woo Sung Jung, Young Do Kim

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In this study, Zn-Mg alloys with various Mg contents were manufactured by the casting method using an induction melting furnace. Then microstructure analysis and mechanical property tests were carried out. In the Zn-Mg alloy with a content of less than 7 wt%Mg, the hardness of the Zn-Mg alloys gradually increased as the Mg content increased but in the alloy with more than Zn-7 wt%Mg, the hardness was almost the same. Enhanced hardness is induced by the intermetallic compounds phase of Mg2Z1 and MgZn 2. In the compression test, Zn-3 wt%Mg had the best compression strength at 610 MPa, but Zn-7 wt%Mg and Zn-10 wt%Mg had a low compression strength at 343 Mpa and 111 MPa, respectively, although these alloys have excellent hardness. This study verified that Zn-Mg alloys containing a Zn phase have more toughness than those composed of only intermetallic compounds such as Mg2Znn and MgZn2.

Original languageEnglish
Pages (from-to)393-398
Number of pages6
JournalJournal of Korean Institute of Metals and Materials
Issue number6
StatePublished - 2013 Jun 1


  • Alloys
  • Casting
  • Compression test
  • Hardness test
  • Microstructure

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