Superplastic deformation of magnesium alloy AZ31 under biaxial loading condition

F. K. Abu-Farha*, N. A. Rawashdeh, M. K. Khraisheh

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Citations (Scopus)

Abstract

Accurate constitutive modeling of superplastic deformation is critical for successful simulation and optimization of superplastic forming. The selection of the forming pressure profiles in gas blow forming of superplastic materials is still based on trial and error due to the limited predictive capabilities of current models describing superplastic deformation. In general, these models are based on uniaxial loading condition, assuming isotropic behavior. In this work, we examine the biaxial bulge forming of AZ31 magnesium alloy using pressure profiles derived from different available analytical models. The results clearly show the need for more accurate description of superplastic deformation to improve predictive capabilities. In addition, a pressure profile that is generated using FE in conjunction with a microstructure-based constitutive model is used and the results indicate better ability to predict the height of the bulged sheet.

Original languageEnglish
Title of host publicationSuperplasticity in Advanced Materials - ICSAM 2006 - Proceedings of the 9th International Conference on Superplasticity in Advanced Materials
PublisherTrans Tech Publications Ltd
Pages219-224
Number of pages6
ISBN (Print)0878494359, 9780878494354
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event9th International Conference on Superplasticity in Advanced Materials, ICSAM 2006 - Chengdu, China
Duration: 23 Jun 200626 Jun 2006

Publication series

NameMaterials Science Forum
Volume551-552
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference9th International Conference on Superplasticity in Advanced Materials, ICSAM 2006
Country/TerritoryChina
CityChengdu
Period23/06/0626/06/06

Keywords

  • AZ31 Mg alloy
  • Biaxial stretching
  • Bulge forming
  • Superplasticity

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