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| Al-Ti-B-RE高效晶粒细化剂的成分优化设计 | |
| 引用本文： | 黄利光,傅高升,陈永禄.Al-Ti-B-RE高效晶粒细化剂的成分优化设计[J].特种铸造及有色合金,2007,27(7):551-553. |
| 作者姓名： | 黄利光 傅高升 陈永禄 |
| 作者单位： | 1. 福州大学机械学院,福州,350002 2. 福州大学机械学院,福州,350002;福建交通职业技术学院机械系 3. 福建工程学院机械系 |
| 摘 要： | 以K2TiF6、KBF4、Al-10RE为添加物,采用原位反应法制备了Al-Ti-B-RE中间合金,通过正交法优化出各合金元素的合理配比,即w（Ti）=5%、w（B）=1%、w（RE）=0.5%.此合金中的TiAl3相尺寸较小,以小块状为主,分布较均匀.利用该细化剂对A356铝合金进行细化处理,其晶粒尺寸仅为原始晶粒的25.7%,枝晶间距明显缩小,细化效果优于Al-5Ti-B中间合金. |
| 关 键 词： | Al-Ti-B-RE中间合金 细化剂 成分优化 晶粒细化 |
| 文章编号： | 1001-2249（2007）07-0551-03 |
| 修稿时间： | 2007-01-08 |
Composition Optimization of Al-Ti-B-RE High Efficient Grain Refiner |
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| Huang Liguang,Fu Gaosheng,Chen Yonglu.Composition Optimization of Al-Ti-B-RE High Efficient Grain Refiner[J].Special Casting & Nonferrous Alloys,2007,27(7):551-553. | |
| Authors: | Huang Liguang Fu Gaosheng Chen Yonglu |
| Abstract: | The Al-Ti-B-RE master alloy was prepared with K2TiF6,KBF4,Al-10RE by in-situ synthesis.The optimized element compositions,namely 5% Ti,1%B,0.5%RE,were optimized by an orthogonal testing.The morphology of TiAl3 phase in the master alloy exhibits blocks with small size,and uniformly distributes into the master alloy.The grain size in the A356 aluminum alloy with the master alloy treated is 25.7% of that of un-treated alloy,in which the distance from dendrites are evidently dropped,showing the refining effects of the Al-Ti-B-RE master alloy superior to that of Al-5Ti-B master alloy. |
| Keywords: | Al-Ti-B-RE Master Alloy Refiner Composition Optimization Grain Refinement |
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