Processing and Microstructures of Directionally Solidified Near γ -TiAl Intermetallics

摘要

In late 1997, a collaborative research project involving Carleton University, the NRC's Institute for Aerospace Research, Pratt & Whitney Canada and the University of British Columbia was initiated to investigate the potential Of directionally solidified TiAl technology for targeted Aero-engine applications. This article describes elected Results of the studies o the Bridgman processing, process Modelling an DS TiAl microstructures. The influences of Processing conditions on the microstructural features are Highlighted and the underlying mechanics are discussed.