Superplastic bulging of an Al-6Mg-0.3Sc alloy and its forming limits

G. Q. Tong, Kang Cheung Chan, T. G. Nieh

Research output: Journal article publicationConference articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

High strain rate superplastic (HSRS) bulging and cavitation behavior of a cold rolled Al-6Mg-0.3Sc sheet were investigated at the temperature of 798K and at the constant applied flow stress of 6.0MPa. The maximum effective strain of about 2.1 was obtained. The experimental results revealed that the cavity growth was essentially plastic - controlled. HSRS bulging limits of the sheet were further predicted based on the Marchiniak - Kuczynski model and a plastic damage approach. It is able to predict HSRS forming limits of the sheet in a reasonable agreement with the experimental findings even without assuming any initial geometrical defect.
Original languageEnglish
Pages (from-to)385-389
Number of pages5
JournalMaterials Science Forum
Volume471-472
Publication statusPublished - 1 Dec 2004
Event11th International Manufacturing Conference - Advances in Materials Manufacturing Science and Technology. - Jinan, China
Duration: 18 Sep 200420 Sep 2004

Keywords

  • Bulging
  • Cavitation
  • Forming limits
  • Superplasticity

ASJC Scopus subject areas

  • Materials Science(all)

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