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中文摘要：
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。
英文摘要：
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 nuclea...
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