High-formability Al alloy sheet produced by asymmetric rolling of strip-cast sheet

Hong Kyu Kim, Hyung Wook Kim, Jae Hyung Cho, Jae Chul Lee

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The feasibility of producing high-strength/high-formability Al alloy sheets using a technique that combines twin-roll strip casting and asymmetric rolling is reported. An Al alloy sheet with the nominal composition of Al-1.0Si-0.6Mg (in wt%) produced in this study exhibited an excellent formability (r=1.20, and δr=0.17) and mechanical properties (σTS~265MPa, ε~35%), which cannot be feasibly obtained via the conventional technique based on direct-chill (DC) casting and repetitive rolling. The structural origin of the enhanced formability was explored by examining the evolution of textures associated with the strip casting and subsequent thermo-mechanical treatments and interpreted using the viscoplastic self-consistent (VPSC) model.

Original languageEnglish
Pages (from-to)31-36
Number of pages6
JournalMaterials Science and Engineering A
Volume574
DOIs
Publication statusPublished - 2013 Jul 1

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Keywords

  • Aluminum alloys
  • Casting
  • Deformation
  • Rolling
  • Texture

ASJC Scopus subject areas

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

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