图书来源:二元合金相图及中间相晶体结构 二元合金相图及中间相晶体结构
作 者:唐仁政 田荣璋
出版时间:2009-05
定 价:320元
图书ISBN:978-7-81105-831-4
出版单位:中南大学出版社
Dejun Yu1), Yue Zhang1) and Kaiming Wang2) 1) Anshan Normal University, Anshan 114005, China 2) University of Science and Technology LiaoNing, Anshan 114051, China
摘 要:Nanolayered Cu-Nb composites offer a series of enhanced properties for their use in extreme conditions, e.g. high field magnets and high irradiation resistance. However, the stability of the Cu/Nb heterogeneous interface needs confirmation under various conditions. In the present work, molecular dynamics simulations were carried out to investigate the interfacial behavior under various temperatures with initial stress at the interface. It is found that the interface becomes unstable at simulation temperatures higher than 600 K, resulting in the emission of dislocations and loops within one or more slip systems. The emission process is found to be thermally-activated, i.e., the higher temperature, the shorter annealing time needed. The present study is believed to assist the experimental synthesis of the Cu-Nb multilayer nanocomposites for multiple applications.
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