| 过偏晶Cu-40%Pb合金凝固组织的深过冷细化 |
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| 引用本文： | 郝维新,杨根仓,谢辉,樊建峰,达道安,王小勇.过偏晶Cu-40%Pb合金凝固组织的深过冷细化[J].铸造技术,2004,25(4):255-258. |
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| 作者姓名： | 郝维新 杨根仓 谢辉 樊建峰 达道安 王小勇 |
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| 作者单位： | 1. 西北工业大学凝固技术国家重点实验室,陕西,西安,710072
2. 兰州物理研究所,甘肃,兰州,714000 |
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| 基金项目： | 国家自然科学基金，航空科研项目，陕西省自然科学基金 |
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| 摘 要： | 利用电磁模拟微重力设备获得S(Pb)均匀分布的过偏晶Cu-40%Pb合金实验样品,然后用熔融玻璃净化与循环过热相结合获得熔体深过冷的方法,对上述获得的均质化实验样品进行深过冷快速凝固实验和凝固组织演化规律的研究.结果表明:经过深过冷技术进行二次处理试样的凝固组织中,随着过冷度的增加弥散的S(Pb)比模拟微重力环境下得到的S(Pb)明显细化.
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| 关 键 词： | 偏晶合金 电磁模拟 微重力 深过冷 组织细化 |
| 文章编号： | 1000-8365(2004)04-0255-04 |
| 修稿时间： | 2003年12月25 |
Structural Refinement of Undercooled Cu-40%Pb Hypermonotectic Alloy |
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| HAO Wei-xin,YANG Gen-cang,XIE Hui,FAN Jian-Feng,DA Dao-an,WANG Xiao-yong University,Xi'an ,China,.Lanzhou Physics Institute,Lanzhou ,China.Structural Refinement of Undercooled Cu-40%Pb Hypermonotectic Alloy[J].Foundry Technology,2004,25(4):255-258. |
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| Authors: | HAO Wei-xin YANG Gen-cang XIE Hui FAN Jian-Feng DA Dao-an WANG Xiao-yong University Xi'an China Lanzhou Physics Institute Lanzhou China |
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| Affiliation: | HAO Wei-xin~1,YANG Gen-cang~1,XIE Hui~1,FAN Jian-Feng~1,DA Dao-an~2,WANG Xiao-yong~2 University,Xi'an 710072,China,2.Lanzhou Physics Institute,Lanzhou 714000,China) |
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| Abstract: | The solidification and microstructure evolution pattern of the homogenous sample of Cu-40%Pb hypermonotectic alloy, which was obtained by using the equipment of simulating microgravity with electro-magnetic fields, have been investigated with glass fluxing technique combined with cycling processes of superheating and cooling. Studies have shown that with the increase of undercooling, the dimension of S(Pb)in the microstructure treated again with undercooling technology is more refined than that solidified under the condition of electro-magnetic simulating microgravity. |
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| Keywords: | Hypermonotectic alloy Electrio-magnetic simulating Microgravity Undercooling Structural Refinement |
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