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Computer Simulation of Ordering and Atom Clustering in Aging Binary Al-Li Alloy
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作者 LIXiao-ling CHENZheng +1 位作者 WANGYong-xin huming-juan 《材料热处理学报》 EI CAS CSCD 北大核心 2004年第05B期720-723,共4页
Ordering and atom clustering in aging binary Al-Li alloy has been investigated by computer simulation through calculating the long range order (Iro.) parameter and composition deviation order parameter from single-sit... Ordering and atom clustering in aging binary Al-Li alloy has been investigated by computer simulation through calculating the long range order (Iro.) parameter and composition deviation order parameter from single-site occupation probabilities of Li atom. The results show that when the alloy lies in metastable region in the phase diagram ordering and atom clustering occur simultaneously. As the composition of the alloy increases ordering occurs earlier than atom clustering gradually. When the alloy lies in instable region atom clustering takes place after the congruent ordering completes. It has also been found that the incubation period of the phase transformation is shortened as the composition increases. 展开更多
关键词 计算机模拟 有序化 原子偏聚 AL-LI合金
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