Localized deformation via multiple twinning in a Mg–Gd–Y–Zr alloy processed by high-pressure torsion

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

9 Scopus Citations
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Author(s)

  • Lingling Tang
  • Yonghao Zhao
  • Ningning Liang
  • R.K. Islamgaliev
  • R.Z. Valiev

Detail(s)

Original languageEnglish
Pages (from-to)68-75
Journal / PublicationMaterials Science and Engineering A
Volume677
Online published2 Sep 2016
Publication statusPublished - 20 Nov 2016
Externally publishedYes

Abstract

Different with common grain refinement dominated by dislocation activities, grain subdivision induced by sequential activation of multiple twinning was observed in a Mg-Gd-Y-Zr magnesium alloy via high-pressure torsion. Deformation bands were evolved from large primary twin bands, which contained refined grains through localized multiple twinning. Nanometer-scaled amorphous bands were also observed within deformation bands in Mg alloys for the first time. These observations indicate that localized deformation via multiple twinning and the consequent formation of deformation bands are potential routes to grain refinement in rare earth-magnesium alloys.

Research Area(s)

  • Alloying, Deformation bands, Deformation twinning, Grain refinement, Magnesium

Citation Format(s)

Localized deformation via multiple twinning in a Mg–Gd–Y–Zr alloy processed by high-pressure torsion. / Tang, Lingling; Zhao, Yonghao; Liang, Ningning; Islamgaliev, R.K.; Valiev, R.Z.; Zhu, Y.T.

In: Materials Science and Engineering A, Vol. 677, 20.11.2016, p. 68-75.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal