这些原则包括：传热及温度回升，亚稳及非平衡凝固热力学，生长动力学及溶质分布。
These principles in elude heat transfer and recalescence, thermodynamics of metastable and non-equilibrium solidification, growth kinetics and solute redistribution.
温度梯度对亚快速凝固组织影响很大。
The temperature gradient has a great effect on the microstructure in hyporapid solidification.
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