| Al-Ti-C晶粒细化剂的连续铸挤组织与细化性能 |
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| 引用本文： | 李英龙,冯海阔,曹富荣.Al-Ti-C晶粒细化剂的连续铸挤组织与细化性能[J].轻合金加工技术,2006,34(9):18-21. |
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| 作者姓名： | 李英龙 冯海阔 曹富荣 |
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| 作者单位： | 1. 东北大学,材料与冶金学院,辽宁,沈阳,110004
2. 吉林大学,吉林,长春,130000 |
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| 摘 要： | 采用液固反应法制备了Al-Ti-C中间合金,由常规铸造及连续铸挤成形,获得了不同组织形态的晶粒细化剂,并通过细化纯铝试验,研究了晶粒细化剂的组织形态与其细化效果间的关系。结果表明:熔体连续铸挤成形过程,对熔体的强烈剪切与热扰动作用,可分散细化TiAl3,使TiC粒子呈弥散分布,显著提高AlTi5C 0.25合金的组织细化活性,经连续铸挤成形的Al-Ti-C晶粒细化剂,特别适于对铝箔制品的细化处理。
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| 关 键 词： | Al-Ti-C晶粒细化剂 液固反应法 连续铸挤 |
| 文章编号： | 1007-7235（2006）09-0018-04 |
| 收稿时间： | 2006-06-03 |
| 修稿时间： | 2006年6月3日 |
CASTEX microstructure and refining property of Al-Ti-C grain refiner |
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| LI Ying-long,FENG Hai-kuo,CHAO Fu-rong.CASTEX microstructure and refining property of Al-Ti-C grain refiner[J].Light Alloy Fabrication Technology,2006,34(9):18-21. |
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| Authors: | LI Ying-long FENG Hai-kuo CHAO Fu-rong |
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| Affiliation: | 1. School of Materials and Metallurgy,Northeastern University, Shenyang 110004, China; 2. Jilin University, Changchun 130000, China |
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| Abstract: | Al-Ti-C master alloy was prepared by liquid-solid reaction method.The grain refiner alloy in different microstructural states was obtained through conventional casting and CASTEX(continuous casting and extrusion).The relationship between the microstructural state of grain refiner alloy and its refining effect was studied through the experiment of refining pure aluminum.The experimental results show that TiAl_3 phase can be dispersed and refined due to the intense shear and thermal disturbance of melt during CASTEX and TiC particles distribute dispersedly.Therefore,the microstructural refining activity of AlTi5C(0.25) was improved significantly.The Al-Ti-C grain refiner that obtained by CASTEX is especially suitable for the refining processing of aluminum foil. |
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| Keywords: | Al-Ti-C grain refiner liquid-solid reaction method CASTEX |
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