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Neck formation and cavitation in the superplastic Zn-22% Al eutectoid

Neck formation and cavitation in the superplastic Zn-22% Al eutectoid
Neck formation and cavitation in the superplastic Zn-22% Al eutectoid
The mechanical behaviour of the superplastic Zn-22% Al eutectoid is divisible into three distinct regions. Experiments show the deformation is quasi-uniform at intermediate strain rates in region II, but neck formation is important at low strain rates in region I. Extensive cavitation occurs in regions I and II, but fracture in region I is due to necking. The results provide strong evidence for a decrease in the true value of the strain rate sensitivity in region I.
0022-2461
2913-2918
Ahmed, Mohamed M.I.
32cd56f3-0dfe-487a-8f4a-fc5c46ea9c42
Mohamed, Farghalli A.
0d8f02a9-fb40-4e5a-9222-3aecf3e4a460
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Ahmed, Mohamed M.I.
32cd56f3-0dfe-487a-8f4a-fc5c46ea9c42
Mohamed, Farghalli A.
0d8f02a9-fb40-4e5a-9222-3aecf3e4a460
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Ahmed, Mohamed M.I., Mohamed, Farghalli A. and Langdon, Terence G (1979) Neck formation and cavitation in the superplastic Zn-22% Al eutectoid. Journal of Materials Science, 14, 2913-2918. (doi:10.1007/BF00611474).

Record type: Article

Abstract

The mechanical behaviour of the superplastic Zn-22% Al eutectoid is divisible into three distinct regions. Experiments show the deformation is quasi-uniform at intermediate strain rates in region II, but neck formation is important at low strain rates in region I. Extensive cavitation occurs in regions I and II, but fracture in region I is due to necking. The results provide strong evidence for a decrease in the true value of the strain rate sensitivity in region I.

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Published date: 1 December 1979

Identifiers

Local EPrints ID: 497777
URI: http://eprints.soton.ac.uk/id/eprint/497777
DOI: doi:10.1007/BF00611474
ISSN: 0022-2461
PURE UUID: a0554dcd-7f56-479d-b4ea-3d25abd0fe51
ORCID for Terence G Langdon: ORCID iD orcid.org/0000-0003-3541-9250

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Date deposited: 31 Jan 2025 17:30
Last modified: 01 Feb 2025 02:40

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Contributors

Author: Mohamed M.I. Ahmed
Author: Farghalli A. Mohamed
Author: Terence G Langdon ORCID iD

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