J.F. Sun
,
J. Shen
,
Z. Y. Li
,
J. Jia and Q.C. Li National Key Laboratory of Metal Precision Hot Processing
,
Harbin Institute of Technology
,
Harbin 150001
,
China
金属学报(英文版)
Based on the Newtonian heat transfer formulation and classical heterogeneous nucleation theory, a mathematical model has been established to predict the profile of flight velocity, heat transfer coefficient, temperature, solid fraction and cooling rate of atomizing droplets for a superalloy. The results indicated that above parameters change with different droplet size and flight distance. The changing trend as well as the mechanism for the change are described and discussed.
关键词:
spray forming
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