6xxx series al alloy sheets with high formability produced by twin-roll strip casting and asymmetric rolling

Hong Kyu Kim, Jae Hyung Cho, Hyoung Wook Kim, Jae-chul Lee

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report on the feasibility of producing 6xxx series Al alloy sheets using a combination of twinroll strip casting and asymmetric rolling. The Al alloy sheets produced in this study exhibited an excellent formability (r=1.2, Δr=0.17) and mechanical properties (σ Ts∼260MPa, δ>30%), which cannot be feasibly obtained via the conventional technique based on ingot casting and conventional rolling. The enhanced formability as evaluated in terms of r and Δr was clarified by examining the evolution of textures associated with strip casting and subsequent thermo-mechanical treatments. The evaluation of the formability leads us to conclude that the combined technique based on strip casting and asymmetric rolling is a feasible process for enhancing the formability of Al alloy sheets to a level beyond which the conventional technique can reach.

Original languageEnglish
Pages (from-to)503-509
Number of pages7
JournalJournal of Korean Institute of Metals and Materials
Volume50
Issue number7
DOIs
Publication statusPublished - 2012 Jul 1

    Fingerprint

Keywords

  • Al alloy
  • Al-Mg-Si
  • Asymmetric rolling
  • Mechanical properties
  • Strip casting
  • Textures

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Modelling and Simulation

Cite this