多层Al-Ti复合板爆炸焊接实验研究

简要介绍了爆炸焊接生成多层复合板的机理及界面构型。以爆炸焊接生成轻质、高强Al Ti多层复合板为例,对爆炸焊接的实验装置、利用光学显微镜、显微硬度计和拉伸试验检验所生成的复合板的性能进行了详细论述。实验结果表明,焊接的多层复合板中各层都有硬化效果,钛层比较明显,并且新材料的强度和重量比与纯钛板较为接近。

THE APPROXIMATE SOLUTION OF PIPE DRIVEN BY DETONATION BASED ON THE THEORY OF DE LAVAL NOZZLE

The motion of circular pipe driven by sliding detonation was compared with the exhaust part of de Laval nozzle.Based on the one-dimensional theory of de Laval nozzle,the two-dimensional formula for the motion of circular pipe driven by sliding detonation was deduced out.For those explosives that the polytropic exponent γ is not equal to 3,the little-parameter-disturbed method was introduced to solute the problem.As a result,the calculation proved that theoretical solution has a higher precise in the range of little bending angle.