锆钢爆炸复合板界面波形影响参数研究  

Parameters of the Interfacial Waves of Zr/Steel Composite Plate by Explosive Welding

作　　者：王小绪[1] 王金相[1] 赵铮[1] 何勇[1] 

机构地区：[1]南京理工大学,江苏南京210094

出　　处：《稀有金属材料与工程》2014年第3期682-685,共4页Rare Metal Materials and Engineering

基　　金：中国博士后科学基金(2011M500929);江苏省博士后科学基金(1101003B);部委技术基础科研项目(C1820130005)

摘　　要：为了研究爆炸焊接参数对锆钢复合板界面波的影响,对锆钢进行了小倾角法爆炸焊接,在不同碰撞速度和碰撞角条件下,得到了连续变化的界面波。通过对界面波进行金相显微观察,测量了不同位置界面波的波长和波高。采用SPH无网格方法对小倾角法爆炸焊接过程进行了数值模拟,计算出了不同位置的碰撞速度、碰撞角、比压强。研究表明,碰撞速度和碰撞角是影响界面波形的关键参数,当碰撞速度为493 m/s,碰撞角为9.8°时,开始产生界面波。随着碰撞速度和碰撞角的增加,界面波波长逐渐增加,比波长先减小后增加。An explosive welding experiment with small inclination was performed for researching the influence of explosive welding parameters on the interracial waves. The interracial waves of continuous change were obtained under the different impact velocities and impact angles. Through observing the OM morphology of interracial waves, the wave length and wave height were measured. Explosive welding with small inclination was numerically simulated using SPH method, and the parameters such as impact velocity, impact angle and specific pressure were calculated. The results show that the impact velocity and the impact angle are the key parameters affecting interfacial waves. When the impact velocity is 493 m/s and impact angle is 9.8~, the interracial waves begin to form. The wave length increases with higher impact velocity and larger impact angle, but the specific wavelength first increases and then decreases.

关 键 词：爆炸焊接 界面波 碰撞速度 碰撞角 SPH法中图法 

分 类 号：TG456.6[金属学及工艺—焊接]