Melting Precess of the TiC<sub>p</sub>/Al Billet in Mg Alloy  Chen Xiao（Central China University,Chansha,China）

Fu Gaosheng  Qian Kaungwu

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Melting Precess of the TiC_p/Al Billet in Mg Alloy Chen Xiao（Central China University,Chansha,China）
Issue 5, Pages: 4-6(2004)
Published： 2004 ，
DOI：

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[1]陈晓,,,,,,,,,傅高升,,,,,,,,,钱匡武.TiC_p/Al预制块在Mg中熔化过程研究[J].特种铸造及有色合金,2004(05):4-6+1.

Fu Gaosheng Qian Kaungwu. Melting Precess of the TiC_p/Al Billet in Mg Alloy Chen Xiao（Central China University,Chansha,China）. [J]. Special Casting & Nonferrous Alloys (5):4-6(2004)
[1]陈晓,,,,,,,,,傅高升,,,,,,,,,钱匡武.TiC_p/Al预制块在Mg中熔化过程研究[J].特种铸造及有色合金,2004(05):4-6+1. DOI：

Fu Gaosheng Qian Kaungwu. Melting Precess of the TiC_p/Al Billet in Mg Alloy Chen Xiao（Central China University,Chansha,China）. [J]. Special Casting & Nonferrous Alloys (5):4-6(2004) DOI：

摘要

将TiC

/Al预制块以不同的工艺加入到Mg液中进行熔化试验。结果表明

未搅拌时TiC

/Al预制块在 80 0℃的Mg液中保温 60min后仍不熔化

采用合适的搅拌工艺可使TiC)

/Al预制块熔化

并且使TiC粒子在熔体中均匀分布。TiC

/Al预制块在Mg液中的熔化过程机理为 :基体Al通过熔化和对流扩散进入到Mg液中

TiC粒子间的结合力需通过搅拌产生的剪切力才能破坏

并随Mg液流动进入到Mg液中。机械搅拌可使TiC粒子在Mg液中均匀分布。

Abstract

The TiC p/Al billet is melted in molten Mg with different processing technologies. The results showed that TiC p/Al billet can not be melted in liquid Mg during holding time for 60 min at 800 ℃ without stirring while TiC p/Al billet can be melted in Mg melt with uniformly distributed TiC particle by mechanical stirring. The melting mechanism can be expounded as follows: molten Al matrix in the TiC p/Al billet diffuses into liquid Mg through convection and TiC particle bond is destroyed with uniform distribution in Mg melt by shearing during mechanical stirring.