【摘要】 运用蒙特卡罗方法计算模拟了加入微合金元素Si,Sc和Zr的Al-Mg合金时效初期微结构的演化过程,分析了微结构演化过程中溶质原子偏聚的特征及其与空位的相互作用;对Si,Sc和Zi与空位复合体的尺寸及空位周围原子的概率分布进行讨论,揭示了空位作用的机理.更多还原

【Abstract】 The Monte-Carlo method are applied to simulate the effect of Si,Sc and Zr on micro-structural evolution of Al-Mg alloy.The character of solute atoms segregating in microstructure evolution and solute acting with vacancy are analyzed;the Si,Sc and Zr atoms interaction with vacancy composite and the possibility of vacancy with atoms surrounding are discussed,and the mechanism of vacancy exerting are revealed.更多还原