The foam aluminum sandwich panels with metallurgy bonding interface are prepared by the sandwich rolling method,the two Al face-sheets are stacked and mixed powders with foam agent are put between them,which are sandwich rolled and a foaming precursor is obtained,then it is foamed in heating furnace.

Original position statistic distribution analysis of aluminum inclusion in middle-low alloy steel;

The criterion of original position statistic distribution analysis for the aluminum inclusion in steel;