Enhanced damping capacity of magnesium alloys by tensile twin boundaries

Yujie Cui, Yunping Li, Shihai Sun, Huakang Bian, Hua Huang, Zhongchang Wang, Yuichiro Koizumi, Akihiko Chiba

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)

Abstract

We propose a novel method to fabricate Mg alloys with enhanced damping capacity without sacrificing mechanical properties by introducing {10-12} twin boundaries. We find that the twin boundaries and their reciprocating movements play a significant role in remarkably enhancing the damping capacity of Mg alloys at high vibration strain amplitude. Such enhancement is especially pronounced in a slightly hot-forged sample with a subsequent annealing at 250 °C for a short period, where incoherent twinning boundaries can be reorganized into coherent ones.

Original languageEnglish
Pages (from-to)8-11
Number of pages4
JournalScripta Materialia
Volume101
DOIs
Publication statusPublished - 2015 May 1

Keywords

  • Damping capacity
  • Mg alloys
  • Plastic deformation
  • Twin boundary

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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