Finite element modeling of superplastic forming in the presence of back pressure

M. Nazzal, M. Khraisheh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

It is established that some superplastic materials undergo significant cavitation during deformation. Cavitation not only limits the superplastic ductility of the material, but also reduces the service properties and the fatigue performance of the formed parts. Experimental results have shown that an effective method to eliminate cavitation is the application of hydrostatic pressure during deformation. In this work, finite element simulations are carried out to study the effects of hydrostatic pressure on damage evolution during SPF. The analysis is conducted for the superplastic copper based alloy Coronze-638 at 550°C The results clearly demonstrate the effectiveness of the superimposition of hydrostatic pressure in reducing the amount of cavities generated during SPF and improving the integrity of the formed part.

Original languageEnglish
Title of host publicationSuperplasticity in Advanced Materials - ICSAM 2006 - Proceedings of the 9th International Conference on Superplasticity in Advanced Materials
Pages257-262
Number of pages6
Publication statusPublished - 1 Dec 2007
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

Other

Other9th International Conference on Superplasticity in Advanced Materials, ICSAM 2006
CountryChina
CityChengdu
Period23/6/0626/6/06

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Keywords

  • Cavitation
  • Finite element modeling
  • Hydrostatic pressure
  • Superplastic forming

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Nazzal, M., & Khraisheh, M. (2007). Finite element modeling of superplastic forming in the presence of back pressure. In Superplasticity in Advanced Materials - ICSAM 2006 - Proceedings of the 9th International Conference on Superplasticity in Advanced Materials (pp. 257-262). (Materials Science Forum; Vol. 551-552).