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Foaming of Al-Si by TiH_2

机译:TiH_2发泡Al-Si

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摘要

Al-6wt%Si alloy foam was prepared by melt foaming method with the addition of titanium hydride as a blowing agent. The effect of thermal decomposition properties of titanium hydride on the alloy melt foaming behavior and the pores structure was studied. The result shows that the number of pores in the foam with stirring time t_s of 60 to 150 sec is 120 to 220 per unit area (cm~(-2)). At the temperature of 550°C there is a uniform cell structure. The porosity of foamed Al-6wt%Si with TiH_2 addition of 1.0 wt% has been remarkably increased, and 1.0 to 1.5 wt% provided a high uniformity of spherical porosity cell structure distribution besides having a favorable decrease in bulk density.
机译:Al-6wt%Si合金泡沫是通过熔融发泡法,加入氢化钛作为发泡剂制备的。研究了氢化钛的热分解性能对合金熔体起泡行为和孔结构的影响。结果表明,搅拌时间t_s为60至150秒的泡沫中的孔的数量为每单位面积(cm 2-(-2))为120至220。在550°C的温度下,电池结构均匀。添加1.0wt%的TiH 2的发泡Al-6wt%Si的孔隙率显着增加,并且1.0〜1.5wt%除了具有良好的堆积密度的降低之外,还提供了高的球形孔隙单元结构分布的均匀性。

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