Geometrical criterion for the activation of prismatic slip in AZ61 Mg alloy sheets deformed at room temperature

J. Koike, R. Ohyama

Research output: Contribution to journalArticle

204 Citations (Scopus)

Abstract

AZ61 Mg alloy was hot-forged and subsequently hot-rolled to a thickness of 1 mm. Tensile anisotropy was investigated at room temperature within the plane of the rolled sheets. When the basal planes were tilted by more than 16.5° towards the tensile axis, basal 〈a〉 slip was a dominant deformation mechanism and a small elongation of 8% was obtained. Otherwise, prismatic 〈a〉 slip became a dominant deformation mechanism and a large elongation of more than 20% was obtained. The basal-plane tilt angle was considered as a geometrical criterion for the activation of the prismatic 〈a〉 slip at room temperature. The corresponding Schmid factor ratio, or equivalently the critical resolved shear stress ratio of prismatic to basal slip, was found to be 1.5-2.0.

Original languageEnglish
Pages (from-to)1963-1972
Number of pages10
JournalActa Materialia
Volume53
Issue number7
DOIs
Publication statusPublished - 2005 Apr 1

Keywords

  • Anisotropy
  • Deformation
  • Magnesium
  • Texture

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Fingerprint Dive into the research topics of 'Geometrical criterion for the activation of prismatic slip in AZ61 Mg alloy sheets deformed at room temperature'. Together they form a unique fingerprint.

  • Cite this