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在分离式Hopkinson压杆装置上对斜圆柱粉末烧结钨合金试件进行了冲击实验,实验中观察到试件的宏观破断现象;用光学和扫描电子显微镜观察到钨合金中出现绝热剪切带这一变形局域化现象,实验结果表明,钨颗粒的形状和空间取向对钨合金剪切变形形式有明显的影响
In a separate Hopkinson pressure bar device, an oblique cylindrical powder sintered tungsten alloy specimen was subjected to an impact test, in which macroscopic rupture of the specimen was observed. The adiabatic shear band appeared in the tungsten alloy by optical and scanning electron microscopy A deformation localization phenomenon, the experimental results show that the tungsten particle shape and spatial orientation of tungsten alloy shear deformation has a significant impact