Authors: RKW Marceau N Tsafnat D Haley SP Ringer
Publish Date: 2010/05/26
Volume: 41, Issue: 8, Pages: 1887-1890
Abstract
The heattransfer characteristics of a rapid hardening Al11Cu17Mg at pct alloy during the early stages of age hardening have been tested both by experiment and finite element modeling for a typical laboratoryscale sample and subsequently a maximum diffusion distance by random walk has been calculated for the solute atom species It is found that due to small diffusion distances compared to the average dislocation loop interspacing the dislocationlocking hardness mechanism is not likely and rather the cluster hardening model is more accurateFunding from the Australian Research Council is gratefully acknowledged One of the authors RKWM also acknowledges support from the CSIRO Light Metals Flagship postgraduate scholarship scheme The authors are grateful for scientific and technical input and support from the Australian Microscopy Microanalysis Research Facility AMMRF node at The University of Sydney particularly Mr Peter Liddicoat and Dr Tomoyuki Honma The authors also thank Dr Chris Hutchinson Monash University for fruitful discussions
Keywords: