Al-Cu-Mg arabesquitic hard materials, interface between the speed between two equivalent 緊 product can bear 較 interface forcing small, and and maximum force alloys produce Userboxes/Time than two 較 slow
Al-Cu-Mg rigid structure of the material, the interfacial area between the two speeds ranging austerity, bear interfacial force smaller than the force and the maximum time between the two alloys produced by slow,
Al Cu mg hard structure of the material, the interfacial area compression speed ranged from between the two, small to withstand interface force, and maximum force than the other two alloy produced by slow time,