Al alloy foam is a kind of new material which has important applications in both high-tech and civil fields. To counter the existing problem in preparing Al alloy foam, it is necessary to reveal the rule of hydrogen production from thermal decomposition of titanium hydride, which furnishes the basis for studying and controlling the Al alloy melt foaming process, thus successfully preparing Al alloy foam with excellent features. In this paper, the Al alloy foam with small pore diameter (D<1mm) low porosity (65% |