Trends in the Formation of Supersaturated Solid Solutions at High Crystal Growth Rates

Abstract

In recent years, there has been increased interest in the crystallization of metals at high growth rates on account of the need to produce materials with properties substantially different from those of equilibrium alloys. Extensive studies have been made on the crystallization and structure of alloys cooled at very high rates (of the order of 107 deg/sec). Although about 100 such systems have been examined, little is known about the crystallization conditions on quenching from the liquid state, and the same applies for the mechanisms of the corresponding phenomena. The results reported here serve to elucidate some characteristic features of alloy crystalization under nonequilibrium conditions.