含<strong>He</strong>泡液态金属铝的动态拉伸断裂机制与损伤模型

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含He泡液态金属铝的动态拉伸断裂机制与损伤模型

周婷婷, 赵福祺, 周洪强, 张凤国, 殷建伟

Mechanism and Damage Model for the Dynamic Tensile Fracture of Liquid Aluminum Containing He Bubbles

ZHOU Tingting, ZHAO Fuqi, ZHOU Hongqiang, ZHANG Fengguo, YIN Jianwei

图5 应变率为3.0 × 10⁹和3.0 × 10⁷ s^-1时含He泡铝样品在拉伸过程中的He泡演化

Fig.5 Evolutions of He bubble during the dynamic tension process at $\dot{ε}$ = 3.0 × 10⁹ s^-1 (a) and $\dot{ε}$ = 3.0 × 10⁷ s^-1 (b) for Al-He sample