Anisotropy and transient effects in superplastic deformation

K. Zhang*, M. K. Khraisheh, A. E. Bayoumi, C. H. Hamilton, H. M. Zbib

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

The tendency for anisotropy and transient effects with deformation of the superplastic Pb-Sn eutectic alloy are explored by using tension/torsion and the tensile test. The development of anisotropy has been sensed in the torsion test and in tension followed by torsion test where an axial stress is detected during torsion deformation. Computation of stress vs non-elastic strain rate during tensile deformation under conditions of non-zero loading rate clearly show transient behavior, and results which are generally different from steady-state deformation conditions. These results imply that the constitutive models representing superplastic flow need further development to account for these complexities.

Original languageEnglish
Pages (from-to)583-588
Number of pages6
JournalMaterials Science Forum
Volume170-172
DOIs
Publication statusPublished - 1994
Externally publishedYes
EventProceedings of the 1994 International Conference on Superplasticity in Advanced Materials (ICSAM-94) - Moscow, Russia
Duration: 24 May 199426 May 1994

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