A Novel Approach to Grain Refinement of Cast Metals (2010-2012)
Abstract
Grain refinement is one of the most important technologies for producing high performance metallic materials. However, the lack of full understanding of the mechanism considerably limits the research progress. This project aims to use advanced technologies electron microscopy, atom probe, synchrotron and etc. to obtain direct experimental evidence and then to establish a comprehensive theory that incorporates a novel constituent mechanism for grain refinement. As a consequence, new grain refiners will be developed for Ti, Cu and Zn cast alloys. These new grain refiners and the new theory will significantly contribute to materials science and engineering and benefit to Australia.
