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首页> 外文期刊>ISIJ international >Dispersion behavior of MgO, ZrO_2, Al_2O_3, CaO-Al_2O_3 and MnO-SiO_2 deoxidation particles during solidification of Fe-10mass percent Ni alloy
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Dispersion behavior of MgO, ZrO_2, Al_2O_3, CaO-Al_2O_3 and MnO-SiO_2 deoxidation particles during solidification of Fe-10mass percent Ni alloy

机译：Fe-10质量％Ni合金凝固过程中MgO，ZrO_2，Al_2O_3，CaO-Al_2O_3和MnO-SiO_2脱氧颗粒的分散行为

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摘要

The growth mechanism of deoxidation particles during solidification and dispersion behavior in mircoseg-regation domain have been studied in the experiments where an Fe-10mass percent Ni alloy deoxidized with Mg, Zr, Al, Ca or Mn/Si was cooled from 1 873 to 1 673 K at 50 K centre dot min~(-1), followed by rapid quenching. In a plot of the mean particle size versus time elapsed in liquid state and a plot of the number of particles per unit area versus time, the particle growth during cooling and subsequent solidification can be explained by Ostwald ripening. The Al_2O_3 particles are pushed to the region of final solidification at lower cooling rate, but the MgO and ZrO_2 particles are engulfed. Engulfment and pushing of particles are discussed based on the wet-ting/interfacial energy model and the critical velocity of particle engulfment and pushing transition.
机译：在将Mg，Zr，Al，Ca或Mn / Si脱氧的Fe-10质量百分比Ni合金从1873冷却到1的实验中，研究了在mircoseg调节域中凝固和分散行为期间脱氧颗粒的生长机理。在50 K中心点min〜（-1）下673 K，然后快速淬火。在液体状态下平均粒径与时间的关系图以及每单位面积的颗粒数与时间的关系图中，冷却和后续固化过程中的颗粒生长可以通过奥斯特瓦尔德熟化来解释。 Al_2O_3颗粒在较低的冷却速率下被推至最终凝固区域，但MgO和ZrO_2颗粒被吞没。基于湿-廷/界面能模型，讨论了粒子的吞没和推挤的临界速度。

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