基于KGT模型的铸造Mg-6Zn合金枝晶间距计算

张诗昌; 卢姿; 吴志林; 徐烁

doi:10.15980/j.tzzz.2019.08.006

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基于KGT模型的铸造Mg-6Zn合金枝晶间距计算
A Calculation of Dendrite Arm Spacing of As-cast Mg-6Zn Magnesium Alloy Based on KGT Model
2019年39卷第8期页码：836-838
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.08.006

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[1]张诗昌,卢姿,吴志林,徐烁.基于KGT模型的铸造Mg-6Zn合金枝晶间距计算[J].特种铸造及有色合金,2019,39(08):836-838.

Zhang Shichang, Lu Zi, Wu Zhilin, et al. A Calculation of Dendrite Arm Spacing of As-cast Mg-6Zn Magnesium Alloy Based on KGT Model[J]. Special Casting & Nonferrous Alloys, 2019,39(8):836-838.
[1]张诗昌,卢姿,吴志林,徐烁.基于KGT模型的铸造Mg-6Zn合金枝晶间距计算[J].特种铸造及有色合金,2019,39(08):836-838. DOI： 10.15980/j.tzzz.2019.08.006.

Zhang Shichang, Lu Zi, Wu Zhilin, et al. A Calculation of Dendrite Arm Spacing of As-cast Mg-6Zn Magnesium Alloy Based on KGT Model[J]. Special Casting & Nonferrous Alloys, 2019,39(8):836-838. DOI： 10.15980/j.tzzz.2019.08.006.

摘要

基于KGT模型

计算了铸造Mg-6Zn合金的枝晶生长速度与生长半径

并运用Hunt模型以及Trivedi模型计算了Mg-6Zn合金的一次枝晶与二次枝晶间距

在光学显微镜下测量了合金的等轴枝晶臂间距与等轴晶内的二次枝晶间距。结果表明

计算值与实际测量的平均值在同一数量级

且数值较为接近。

Abstract

The rate and radius of dendrite growth of the as-cast Mg-6Zn alloy were calculated based on KGT model.The primary and secondary dendrite arm spacing of Mg-6Zn alloy were calculated based on Hunt model and Trivedi model

respectively.The primary arm spacing in equiaxed grains and the secondary dendrite spacing in equiaxed grains were measured with the microscope.The results reveal that the calculated and the measured average value of dendrite spacing has the same order of magnitude and is very close in value.