Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30954
Title: Superplastic bulging of an Al-6Mg-0.3Sc alloy and its forming limits
Authors: Tong, GQ
Chan, KC 
Nieh, TG
Keywords: Bulging
Cavitation
Forming limits
Superplasticity
Issue Date: 2004
Publisher: Trans Tech Publications Ltd
Source: Materials science forum, 2004, v. 471-472, p. 385-389 How to cite?
Journal: Materials science forum 
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.
Description: 11th International Manufacturing Conference - Advances in Materials Manufacturing Science and Technology., Jinan, 18-20 September 2004
URI: http://hdl.handle.net/10397/30954
ISSN: 0255-5476
EISSN: 1662-9752
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