| 超重力对铅锡共晶凝固组织的影响 |
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| 引用本文： | 赵志龙,鲁德洋,裴崇斌. 超重力对铅锡共晶凝固组织的影响[J]. 材料研究学报, 1998, 0(4) |
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| 作者姓名： | 赵志龙 鲁德洋 裴崇斌 |
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| 作者单位： | 西北工业大学!西安市，710072，西北工业大学，西北工业大学 |
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| 摘 要： | 采用臂长为1．3m的离心机实现1、5、10、15g（1g=9．8m·s-2）四个重力水平；利用Bridgman法使Ph－Sn共晶单向凝固，以观察重力对凝固组织的影响结果表明，随重力水平的提高，共晶晶团尺寸减小，而共晶相间距不变，表明浮力才流不影响并晶相间的溶质交换
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| 关 键 词： | 超重力 浮力对流 共晶晶团 共晶相间距 |
THE EFFECT OF EXTRAGRMITY ON THE SOLIDIFICATION MORPHOLOGY OF Pb-Sn EUTECTIC |
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| ZHAO Zhilong,LU Deyang,PEI Chongbin. THE EFFECT OF EXTRAGRMITY ON THE SOLIDIFICATION MORPHOLOGY OF Pb-Sn EUTECTIC[J]. Chinese Journal of Materials Research, 1998, 0(4) |
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| Authors: | ZHAO Zhilong LU Deyang PEI Chongbin |
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| Abstract: | A centrifuge with of radius 1.3m is used to achieve four gravity levels (1g, 5g, 10g and 15g, 1g=9.8m.s-2). For observing and analyzing the difference of solidification morphology in various gravity levels, the eutectic Pb-Sn is directionaIly solidified in high gravity using Bridgman technique.Experimental results show that the size of eutectic cell in high-gravity is smaller than that of 1g, and that the Pb-Sn eutectic interphase spacing at the various gravity levels has little partial difference,which indicate that the buoyancy convection don't influent the exchange of solute between the eutectic phases. |
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| Keywords: | extragravify buoyancy convection eutectic cell eutectic interphase spacing |
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