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Explores the phase evolution relationship during rapid solidification processing (RSP) and the possible design of phase composition in rapidly solidified alloys. Alloy used in the investigation which is the most promising representative of titanium-aluminum-based alloys; Use of a vacuum arc furnace to carry out the process of melting; Transformation of the lamellar structure from primary phase alpha due to the solid transformation in the subsequent cooling process.

Describes the re-coarsening of the refined crystals in the undercooled Cu-30at.percent nickel alloy. Design of different solidification times by changing the weight of samples and the cooling condition; Use of an infrared pyrometer to supervise the temperature of samples; Rapid solidification of bulk undercooled melts under adiabatic condition; Changes of critical undercooling with solidification times; Microstructures of Cu-30at.percent nickel; Conventional solidification of single phase alloys.