钛/钢复合板爆炸焊接实验

以3mm 厚的TA2钛板和26mm 厚的正火态Q345R为材料,通过爆炸焊接实验,对钛/钢复合板 爆炸焊接的动态参数进行了研究。结合复合板结合界面特征、复合板结合强度(剪切强度)以及界面波的金相 组织,讨论了钛/钢爆炸焊接时获得高强度结合和规则的界面结合波状形态的条件。对于3mm 厚TA2与 26mm厚正火态Q345R,该条件是动态碰撞角17,动态碰撞速度vp760m/s。根据界面波及基板轧制 金相组织形态,分析了形成界面波的机理,认为射流阻碍复板连续碰撞基板是形成界面波的一个主要原因。

An experimental research on explosive welding of titanium/steel clad plate

By using 3 mm thick titanium TA2 and 26 mm thick normalized steel Q345R,explosive welding experiments were performed,and the dynamic parameters were studied.In light of the characters of bonding area of the clad plate,bond strength(shear strength) and the metallurgical structures of interface waves,the conditions responsible for high bond strength and more regular interface wave morphology were discussed.For 3 mm thick titanium TA2 and 26 mm thick normalized steel Q345R,the condition is the dynamical bend angle β>17°,and dynamical impact velocity vp>760 m/s.The mechanism responsible for interface waves was discussed according to the metallurgical structures of interface waves and the striation of the base plate.The conclusion is that the jet prevents the clad plate from continuously impacting the base plate,which is one of the main reasons why the interface wave is always observed.