Effects of Temperature on Preparation of Al-Ti-C Grain Refiner

Tan Dunqiang  Li Wenxian

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Effects of Temperature on Preparation of Al-Ti-C Grain Refiner
Issue 5, Pages: 4-7(2002)
Published： 2002 ，
DOI：

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[1]谭敦强,,,,,,,,,,黎文献.温度对制备Al-Ti-C晶粒细化剂的影响[J].特种铸造及有色合金,2002(05):4-7+3.

Tan Dunqiang Li Wenxian. Effects of Temperature on Preparation of Al-Ti-C Grain Refiner. [J]. Special Casting & Nonferrous Alloys (5):4-7(2002)
[1]谭敦强,,,,,,,,,,黎文献.温度对制备Al-Ti-C晶粒细化剂的影响[J].特种铸造及有色合金,2002(05):4-7+3. DOI：

Tan Dunqiang Li Wenxian. Effects of Temperature on Preparation of Al-Ti-C Grain Refiner. [J]. Special Casting & Nonferrous Alloys (5):4-7(2002) DOI：

摘要

采用石墨粉加入到Al Ti合金中的方法来制备Al Ti C晶粒细化剂。采用扫描电镜和透射电镜观察了Al Ti C合金的微观形貌

采用X射线衍射装置检测了Al Ti C合金中的相组成。结果表明

在制备Al Ti C合金过程中

温度低于 12 73K先生成TiC粒子

随着保温时间的延长TiC转变成为Al4C3 ;但温度升高到 15 73K以上时

Al4C3 会分解重生成TiC。

Abstract

Al Ti C grain refiner was prepared by adding graphite powder in Al Ti alloy. The microstructure of Al Ti C alloy was observed by means of TEM

SEM and phase constituents of the refiner was detected by X ray. The results showed that TiC particle was firstly generated below 1 273 K and then transformed into Al 4C 3 with prolonging holding time while Al 4C 3 would be decomposed into TiC again over 1 573 K.