【摘要】 测定了光滑和缺口钨合金材料在不同应变率下动态拉伸性能的变化规律,观察了材料断裂的微观机制。结果发现,光滑试样具有正应变率效应,缺口试样具有负应变率效应,在不同应变率下,两种试样的断裂方式没有明显的差别。更多还原

【Abstract】 Law of dynamic tensile property of tungsten alloy with notch or without notch was mensurated, and material microcosmic fragment mechanism was observed. The results showed that sample without notch has a kind of positive strain rate effect and with notch has negative strain rate effect; at difference strain rate, tow kinds of sample fragmentpattern have not distinctness different.更多还原