Dynamic Response of Nanoscale He Bubbles in Single Crystal Al during Release from a High-Pressure State
نویسندگان
چکیده
Previous researches have presented some knowledge about the shock loading and unloading of nanoscale He bubble. However, bubble will undergo a long high-pressure adiabatic relaxation process after being shocked. This work focuses on release path in single crystal Al from stable state by molecular dynamics method. Firstly, we consider case that two opposite waves meet at center Combined with analysis deformation mechanism stress waveform around bubble, difference evolution law under different pressure conditions is revealed. The number distribution voids or without compared. And nucleation region gradually extends to both sides increase initial Hugoniot pressure. Moreover, when wave considered sweep through microjet formation found due gradient effect. shape velocity internal surface jets are discussed.
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ژورنال
عنوان ژورنال: Metals
سال: 2022
ISSN: ['2075-4701']
DOI: https://doi.org/10.3390/met12101665