The University of Southampton
University of Southampton Institutional Repository

Microstructure development and superplasticity in Inconel 718 sheet

Microstructure development and superplasticity in Inconel 718 sheet
Microstructure development and superplasticity in Inconel 718 sheet
Within the range of temperatures and strain rates investigated, mechanical testing identified the optimum forming condition for Inconel 718 sheet as being 965°C with a strain rate of 10-4 s-1. A detailed investigation of the microstructural behaviour under these deformation conditions was carried out and is reported here. Typically superplastic deformation would generate an enhanced rate of grain growth. This was not the case with the present material; instead it was found that a slight apparent grain size reduction occurred and there was evidence of substantial dislocation activity. It was concluded that the material was deforming on the borderline between 'true' superplasticity and normal slip based deformation.
0267-0836
461-466
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Blackwell, Paul L.
1f011a1a-541c-45fa-8ce9-0c7cb780fead
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Blackwell, Paul L.
1f011a1a-541c-45fa-8ce9-0c7cb780fead

Huang, Yi and Blackwell, Paul L. (2003) Microstructure development and superplasticity in Inconel 718 sheet. Materials Science and Technology, 19 (4), 461-466. (doi:10.1179/026708303225002000).

Record type: Article

Abstract

Within the range of temperatures and strain rates investigated, mechanical testing identified the optimum forming condition for Inconel 718 sheet as being 965°C with a strain rate of 10-4 s-1. A detailed investigation of the microstructural behaviour under these deformation conditions was carried out and is reported here. Typically superplastic deformation would generate an enhanced rate of grain growth. This was not the case with the present material; instead it was found that a slight apparent grain size reduction occurred and there was evidence of substantial dislocation activity. It was concluded that the material was deforming on the borderline between 'true' superplasticity and normal slip based deformation.

This record has no associated files available for download.

More information

Published date: April 2003
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 196279
URI: http://eprints.soton.ac.uk/id/eprint/196279
ISSN: 0267-0836
PURE UUID: c3f03c54-ad3f-48b7-80c7-539202c30abb
ORCID for Yi Huang: ORCID iD orcid.org/0000-0001-9259-8123

Catalogue record

Date deposited: 06 Sep 2011 08:22
Last modified: 15 Mar 2024 03:39

Export record

Altmetrics

Contributors

Author: Yi Huang ORCID iD
Author: Paul L. Blackwell

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×