High Temperature Deformation Behavior of 8090 Al-Li Alloy

Joint Authors

Ha, Tae Kwon
Jung, Woo Young

Source

Advances in Materials Science and Engineering

Issue

Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2013-07-29

Country of Publication

Egypt

No. of Pages

9

Main Subjects

Engineering Sciences and Information Technology

Abstract EN

High temperature deformation behavior, especially the superplasticity of an 8090 Al-Li alloy, was studied within the recent framework of the internal variable theory of structural superplasticity.

In this study, a series of load relaxation tests were conducted at various temperatures ranging from 200°C to 530°C to obtain the flow curves of log ε˙ versus log ε.

The effect of grain size was also examined by varying the grain sizes through a proper thermomechanical treatment.

The flow curves were found to be composite curves consisting of contributions from grain boundary sliding (GBS) and grain matrix deformation (GMD) at superplastic temperatures.

The activation energy obtained for GMD was 124.9 kJ/mole in the temperature range from 470°C to 530°C, very similar to that for self-diffusion in pure Al.

American Psychological Association (APA)

Jung, Woo Young& Ha, Tae Kwon. 2013. High Temperature Deformation Behavior of 8090 Al-Li Alloy. Advances in Materials Science and Engineering،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-477512

Modern Language Association (MLA)

Jung, Woo Young& Ha, Tae Kwon. High Temperature Deformation Behavior of 8090 Al-Li Alloy. Advances in Materials Science and Engineering No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-477512

American Medical Association (AMA)

Jung, Woo Young& Ha, Tae Kwon. High Temperature Deformation Behavior of 8090 Al-Li Alloy. Advances in Materials Science and Engineering. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-477512

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-477512