Development of Twin-Belt Cast AA5XXX Series Aluminum Alloy Materials for Automotive Sheet Applications

Abstract

Process routes for 5XXX series aluminum alloy sheet produced with an advanced twin-belt caster (FLEXCASTERTM) have been successfully trialed, and are now in production. The FLEXCASTTM 5XXX sheet has finer intermetallic compounds and grains compared to conventional DC processed 5XXX aluminum alloy sheet, as a consequence of the higher cooling rate during solidification. Optimization of composition and refinement of microstructure has resulted in superior dome stretchability and lower susceptibility to SCC than DC5182 sheets. Moreover, FLEXCAST 5XXX aluminum alloy sheet shows good performance in adhesive bonding and coating tests, critical for automotive structural parts.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2009
Accession Number
ADA535653

Entities

People

  • A. Goto
  • H. Kazama
  • I. Okamoto
  • K. M. Gatenby
  • K. Mizushima
  • K. Yasunaga
  • M. Gallerneault
  • N. Hayashi
  • P. Z. Zhao
  • S. Baker
  • T. Anami

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Adhesive Bonding
  • Adhesives
  • Aluminum Alloys
  • Bonding
  • Fabrication
  • Grain Boundaries
  • Grain Size
  • Intermetallic Compounds
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Metals
  • Microstructure
  • Particles
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.
  • Reinforced Composite Materials