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

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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. © 2004 Trans Tech Publications, Switzerland.
Original languageEnglish
Pages (from-to)385-389
JournalMaterials Science Forum
Volume471-472
DOIs
Publication statusPublished - 2004
Externally publishedYes
Event11th International Manufacturing Conference - Advances in Materials Manufacturing Science and Technology. - Jinan, China
Duration: 18 Sept 200420 Sept 2004

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

  • Bulging
  • Cavitation
  • Forming limits
  • Superplasticity

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