原子能科学技术Issue(3)：385-389,5.DOI:10.7538/yzk.2014.48.03.0385
钛中氦泡融合的分子动力学模拟
Molecular Dynamics Simulation of Helium Bubble Coalescence in Titanium
摘要
Abstract
Molecular dynamics simulations were performed to study the helium bubble coalescence in titanium . T he influence of helium bubble coalescence on the metal microstructure was analyzed .The bubble coalescences in the bulk metal and near the metal surface were compared . When helium bubbles lie in the bulk metal , a lot of defects are induced around by the bubbles coalescence and extend outward . The coalescence of helium bubbles with 1.77 nm diameter can form a dislocation loop around them . The helium bubbles after coalescence evolve from dumbbell shape toward ellipsoid shape .When helium bubbles lie near the metal surface ,the defects induced by bubbles coalescence are likely to move to the top surface ,and the metal around bubble tends to restore the crystal structure .The helium bubbles evolve from dumbbell shape tow ard hemispherical shape .关键词
钛/氦泡/融合/分子动力学Key words
titanium/helium bubble/coalescence/molecular dynamics分类
数理科学引用本文复制引用
张宝玲,李敏,周宇璐,侯氢..钛中氦泡融合的分子动力学模拟[J].原子能科学技术,2014,(3):385-389,5.基金项目
国家国际热核聚变实验反应堆计划专项资助项目（2009GB10064，2013GB109000）；国家自然科学基金资助项目 （）
