The influence of external factors on superplastic deformation of Al–Al₄C₃ composites
by Michal Besterci, Frantisek Lofaj, Oksana Velgosova
International Journal of Materials and Product Technology (IJMPT), Vol. 22, No. 4, 2005

Abstract: Deformation of the Al–Al₄C₃ composites with different volume fraction of Al₄C₃ phase was investigated at different temperatures (293–723 K) and different strain rates (2.5 × 10^-5 s^-1 – 1 × 10^-1 s^-1). At temperatures 673–723 K and at the highest strain rate of 10^-1 s^-1, a significant ductility increase was observed. TEM analysis suggests that it is the result of dynamic grain polygonisation, grain slip and rotation, partial recrystallisation and dislocation creep in the tested system, which is known as strain induced dynamic recovery. Increase of the volume fraction of secondary phase in the studied composite resulted in a shift in the deformation mechanism from more slip on grain boundaries to more grain rotation.

Online publication date: Thu, 10-Mar-2005

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Materials and Product Technology (IJMPT):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com