Elevated-temperature impact toughness of Mg-(Gd, Y)-Zr alloy

Y. L. Mu, Q. D. Wang, M. L. Hu, V. Janik, D. D. Yin

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The Charpy impact results for Mg-10Gd-3Y-0.5Zr and Mg-11Y-5Gd-2Zn-0.5Zr alloys at various temperatures showed that Mg-10Gd-3Y-0.5Zr was more sensitive to temperature. The increase in impact toughness with temperature was related to the blunt crack-tip at high temperatures. The delamination and local melt of matrix were responsible for the brittle-to-ductile transition of GW103 alloy. The branch and bridging of cracks resulting from ordered phases played an import role in the change in fracture mode from cleavage fracture to quasi-cleavage and dimple-fracture for WGZ1152 alloy.

Original languageEnglish
Pages (from-to)885-888
Number of pages4
JournalScripta Materialia
Volume68
Issue number11
DOIs
Publication statusPublished - Jun 2013
Externally publishedYes

Keywords

  • Fracture
  • Impact behaviour
  • Long-period stacking ordered
  • Magnesium alloys
  • Toughness

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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