Interview : Women on the line

Radio Interview with Tanya Arman, on Melbourne Radio 3CR, national current affairs program focused on women, 'Women On The Line', discussing the role of gendered language in the media and sexism in Australia.

Deformation field variations in equal channel angular extrusion due to back pressure

Flow lines were analysed in aluminium alloy 6061 during equal channel angular extrusion (ECAE) in a 90° die with and without the application of back pressure during pressing. The lines appeared much more rounded when a back pressure was applied compared to the case of conventional ECAE testing. With the help of an analytic flow function, the deformation field was obtained. It is shown that back pressure slightly lowers the total strain, strongly increases the size of the plastic zone and significantly reduces the plastic strain rate.

Non-equal channel angular pressing of aluminum alloy

Strain history, microstructure and texture were studied in an aluminum alloy processed by the recently proposed process of non-equal channel angular pressing (NECAP). Comparison with alloy processed by equal channel angular pressing (ECAP) has been performed. A much finer microstructure was obtained in NECAP, showing that in this modified ECAP test the grain-refinement process was more efficient. The results indicate that the NECAP test has some interesting features that may be of interest for further research.