| 评价溶质元素细化晶粒能力的参数 |
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| 引用本文： | 韩青有,胡汉起.评价溶质元素细化晶粒能力的参数[J].金属学报,1988,24(5):392-396. |
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| 作者姓名： | 韩青有 胡汉起 |
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| 作者单位： | 北京钢铁学院铸造教研室，北京钢铁学院 |
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| 摘 要： | 推导了凝固界面前沿液相一侧的液相线温度梯度,并由此梯度提出了评价溶质元素细化晶粒能力大小的参数H。对铝基合金的实验结果表明:H参数数值越大,铸态晶粒尺寸越小。因此,H参数可用于指导晶粒细化剂的选择。
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| 关 键 词： | 溶质元素 晶粒细化 |
| 收稿时间： | 1988-05-18 |
| 修稿时间： | 1988-05-18 |
A PARAMETER FOR EVALUATING ABILITY OF GRAIN REFINEMENT OF SOLUTE ELEMENTS |
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| HAN Qingyou,HU Hanqi Beijing University of Iron and Steel Technology.A PARAMETER FOR EVALUATING ABILITY OF GRAIN REFINEMENT OF SOLUTE ELEMENTS[J].Acta Metallurgica Sinica,1988,24(5):392-396. |
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| Authors: | HAN Qingyou HU Hanqi Beijing University of Iron and Steel Technology |
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| Affiliation: | HAN Qingyou;HU Hanqi Beijing University of Iron and Steel Technology |
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| Abstract: | The gradient of the equilibrium melting temperature on liquid side of
advancing solid-liquid interface has been derived. From it, a parameter, H, used for
evaluating the ability of grain refinement of solute elements has been proposed.
Experiments on Al-base alloys show that the grain size of alloys decrease with
increasing H value. This indicates that parameter H can be used as an index for
selecting the grain refiners. |
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| Keywords: | Solute elements grain refinement |
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