Combined effects of composite making, ageing and extrusion on property improvements in Al-7075-based alloy
by Rupa Dasgupta; Sudhanshu Chaturvedi; Amol Kumar Jha
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 7, No. 6, 2012

Abstract: The present paper reports attempts made at enhancing the mechanical and wear resistance properties of a commonly used aluminium alloy, the 7075 alloy by different routes. They include: 1) making composites; 2) ageing of the alloy and composite; 3) extruding the alloy and composite to rods. A comparison in the properties including microstructure, hardness, mechanical and sliding wear resistant properties attained by the different routes have been attempted. It has been found that making composites drastically increases the hardness of the alloy and extruding them further increases the value marginally. Homogenisation increases the UTS for both the alloy and composite; however, extrusion does not show any positive effect especially for the composite. The presence of dispersoid particles changes the ductile behaviour of the alloy to a brittle failure for composites. This type of an analysis and study would help find the extent to which the properties in this alloy system can be improved and the additive enhancement if any vis-à-vis only ageing, extrusion or composite making.

Online publication date: Fri, 28-Dec-2012

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 Microstructure and Materials Properties (IJMMP):
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