The microstructural characteristics of Al processed using severe plastic deformation procedures
by Kinga Rodak, Tomasz Goryczka
International Journal of Computational Materials Science and Surface Engineering (IJCMSSE), Vol. 1, No. 5, 2007

Abstract: The structure of Al is subjected to Severe Plastic Deformation (SPD) by means of compression with oscillatory torsion and by combined method: compression and next compression with oscillatory torsion (combined method I) and compression followed by annealing at 250°C/1 min with next compression with oscillatory torsion (combined method II). Al samples were deformed at torsion frequency (f), changed from 0 Hz (compression) to 1.6 Hz under a constant torsion angle (α) ≈6° and compression speed (v) = 0.1 mm/s. For combined methods, the samples were compressed for strain ε = 0.7 and next deformed at mentioned parameters of compression with oscillatory torsion. The structural analysis shows that the processing by compression with oscillatory torsion ensures obtaining a structure (at selected parameters) with a mean grain size ≈1.6 µm. Combined methods of deformation lead to grain refinement to about ≈0.9 µm. Moreover, material with uniform Ultra-Fine Grained (UFG) microstructure was obtained. The microstructures contain high angle grain boundaries. Texture measurements reveal a weak texture after processing. [Received 11 April 2007; Accepted 26 July 2007]

Online publication date: Thu, 21-Feb-2008

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 Computational Materials Science and Surface Engineering (IJCMSSE):
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