A united refinement technology for commercial pure Al by Al-10Ti and Al-Ti-C master alloys

Ma Xiao-guang; Liu Xiang-fa; Din Hai-min

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A united refinement technology for commercial pure Al by Al-10Ti and Al-Ti-C master alloys
Issue S1, Pages: 172-174(2008)
Published： 2008 ，
DOI：

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[1]马晓光,刘相法,丁海民.Al-Ti-C和Al-10Ti中间合金联合细化新工艺[J].特种铸造及有色合金,2008(S1):172-174.

Ma Xiao-guang, Liu Xiang-fa, Din Hai-min. A united refinement technology for commercial pure Al by Al-10Ti and Al-Ti-C master alloys. [J]. Special Casting & Nonferrous Alloys (S1):172-174(2008)
[1]马晓光,刘相法,丁海民.Al-Ti-C和Al-10Ti中间合金联合细化新工艺[J].特种铸造及有色合金,2008(S1):172-174. DOI：

Ma Xiao-guang, Liu Xiang-fa, Din Hai-min. A united refinement technology for commercial pure Al by Al-10Ti and Al-Ti-C master alloys. [J]. Special Casting & Nonferrous Alloys (S1):172-174(2008) DOI：

摘要

Al-Ti-C中板片状TiAl3在铝熔体中难溶解、易沉淀

使Ti对Al的晶粒细化辅助作用得不到充分发挥

显著降低了Al-Ti-C的细化效果。本研究提出了一种采用Al-Ti-C和Al-10Ti联合细化纯铝新工艺

即利用Al-10Ti中颗粒状TiAl3与Al-Ti-C中TiC的有机组合

显著提高了TiC的成核率

不仅能显著提高其细化能力

而且可以减少用量

降低成本。

Abstract

Because flake-like TiAl3 particles in Al-Ti-C master alloys prepared in a melt reaction method dissolve slowly when they are added into Al melt

Ti atoms cannot be released rapidly to play the assistant role of grain refinement

leading to a poor refinement efficiency of Al-Ti-C master alloys. A united refinement technology by Al-10Ti and Al-Ti-C master alloys was put forward in this paper. The rational combination of fine blocky TiAl3 particles in Al-10Ti and TiC particles in Al-Ti-C can improve the nucleation rate of α-Al. It not only improves the grain refinement efficiency of Al-Ti-C master alloys

but also reduces the consumption.