Development of high strength Mg-Cu-Zn ultrafine eutectic composites with enhanced plasticity

Ki An Song, Ki Buem Kim, Jin Man Park, Jae Seol Lee, Joon Sik Park, Won Hee Lee, Do Hyang Kim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Mg-Cu-Zn ultrafine eutectic composites with different length scale heterogeneity, consisting of micrometer size dendrites and/or ultrafine scale bimodal eutectics, exhibit high yield strength as well as good plasticity at room temperature compression. Among these alloys, micron-scale α-Mg dendrites reinforced ultrafine eutectic composites exhibit high yield strength of 310 ̃ 420 MPa and large plasticity of 7 ̃ 12%. Meanwhile, a Mg 72Cu5Zn23 alloy comprising a bimodal eutectic structure without the micron-scale α-Mg dendrites shows the optimized mechanical properties the highest yield strength of 455 MPa combined with a considerable plastic strain of ̃5%.

Original languageEnglish
Pages (from-to)947-952
Number of pages6
JournalInternational Journal of Modern Physics B
Volume23
Issue number6-7
DOIs
Publication statusPublished - 2009 Mar 20

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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