Interfacial Phenomena in Explosive Welding of Al-Mg Alloy/Steel and Al-Mg Alloy/Titanium/Steel

概要

論文の詳細を見る
Joinability and inter facial metallurgical phenomena in explosive welding of bi- or tri-metallic combinations of Al-Mg alloy/steel and Al-Mg alloy/titanium/steel ate experimentally examined in order to explain why aluminum alloys containing magnesium can be hardly bonded with steel by explosive welding process and to apply one '.hat explosive welding process to the fabrication of Al-Mg alloy clad steel with an intermediate of titanium. The results reveal the following: In the process of welding Al-Mg alloy to steel, vaporization and condensation of magnesium take place at the interface, and the magnesium dissolved in the molten metal reduces its toughness in solid stale and causes microscopic cracks in it, by which the joining is hindered and the bond is weakened. By one shot explosive welding process, a clad steel of Al-Mg alloy/titanium/steel can be produced, which is bonded together with wavy interface on each side of the titanium layer. The wave length of the interfacial wares increases with an increasing kinetic energy loss in collision of the two components to be welded. Adiabatic shear bands generate at the titanium weld zone of steel side.
社団法人溶接学会の論文
1986-10-01