ABSTRACT
I. INTRODUCTION fhe recent progress in rapid solidification processing (RS) of crysta lline alloys has 1llowed a degree of microstructural control which has never before been achieved JY conventional ingot metallurgy methods. The microstructural refinements include ~xtended solid solubility , increased chemical homogeneity, refined grain size . and :ormation of metastable phases. These attributes o f RS have been uti lized in many llloy systems in designing alloys which exhibit improved mechanical properties. Particular examples of alloy systems which have received wide atte ntion are high-;trength co rrosion-resistant magnesium alloys, reduced-densi ty a luminum-lithium 1lloys , high-temperature aluminum a lloys, and titanium alloys. Other a lloy systems, ;uch as copper-, nickel-, iron-, niobium-, and tungsten-based alloys, which show Jotential benefits of RS are also of interest.
