在实验室条件下进行了预熔精炼渣熔化特性测定及钢水深脱硫实验研究。
The melting characteristic of premelted refining slag and deep desulfurization of molten steel are experimentally studied.
结果表明，（001）面在低于其完整晶体的熔化温度出现预熔。
The results indicate that there are some quasiliquid layers on plane (001) at some temperature below the melting points of the prefect crystals.
冷却速率越大或预变形处理以后的试样在熔化过程中更容易发生二次枝晶臂之间的合并。
The more the increase of cooling rate or pre-deformation, the more the secondary dendrite arms are easy to coarsen.
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