Effects of microstructural evolution on the stability of superplastic deformation

Naveen V. Thuramalla; Marwan K. Khraisheh

doi:10.1016/B978-008044046-0.50168-8

Effects of microstructural evolution on the stability of superplastic deformation

Naveen V. Thuramalla, Marwan K. Khraisheh^*

^*Corresponding author for this work

University of Kentucky

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

10 Citations (Scopus)

Abstract

In this work we propose a stability criterion for superplastic deformation based on geometrical instabilities and microstructural evolution including grain growth and void growth. An optimum strain rate-forming path is derived from the new criterion. Preliminary results are reported on the effects of microstructural evolution on the stability of deformation of the Ti6A14V superplastic alloy. It is shown that the critical strain predicted from the proposed criterion is significantly affected by microstructural evolution.

Original language	English
Title of host publication	Computational Fluid and Solid Mechanics 2003
Publisher	Elsevier Inc.
Pages	683-686
Number of pages	4
ISBN (Electronic)	9780080529479
ISBN (Print)	9780080440460
DOIs	https://doi.org/10.1016/B978-008044046-0.50168-8
Publication status	Published - 2 Jun 2003
Externally published	Yes

Keywords

Microstructural evolution
Optimum forming
Stability analysis
Superplastic forming

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10.1016/B978-008044046-0.50168-8

Cite this

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AB - In this work we propose a stability criterion for superplastic deformation based on geometrical instabilities and microstructural evolution including grain growth and void growth. An optimum strain rate-forming path is derived from the new criterion. Preliminary results are reported on the effects of microstructural evolution on the stability of deformation of the Ti6A14V superplastic alloy. It is shown that the critical strain predicted from the proposed criterion is significantly affected by microstructural evolution.

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KW - Stability analysis

KW - Superplastic forming

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BT - Computational Fluid and Solid Mechanics 2003

PB - Elsevier Inc.

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Effects of microstructural evolution on the stability of superplastic deformation

Abstract

Keywords

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