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            Simulation of low energy displacement processes in a dilute cu-au alloy

            鄧輝舫 , H. F. Deng a; D. J. Bacon a

            Radiation Effects and Defects in Solids, 1029-4953, Volume 130, Issue 1, 1994, Pages 507-512,-0001,():



            Research into displacement cascade processes in alloy systems has received little attention, yet is potentially of interest because issuessuch as the effect of solutes on the displacement threshold and the defectdistribution and movement in cascades are important. As part of a widerstudy, we have initially considered the minor substitutional solute Au in a Cu matrix, and have used molecular dynamics to investigate the properties of point defects, the threshold displacement energy Ed, and temporal and spatial distribution of defects in low-energy (≤500 eV) displacement cascades. The results show that the influence of the solute on the properties of defects is important and that Edis dramatically different from its form in pure copper. In comparison with pure copper,the recoil of the Au solute gives rise to a higher peak at longer timesin the number of displaced atoms in the generation of a displacement cascade. The influence of this on defect density in the cascade and thefinal number and arrangement of defects has been investigated.

            【免責聲明】以下全部內容由[鄧輝舫]上傳于[2009年06月09日 17時16分14秒],版權歸原創者所有。本文僅代表作者本人觀點,與本網站無關。本網站對文中陳述、觀點判斷保持中立,不對所包含內容的準確性、可靠性或完整性提供任何明示或暗示的保證。請讀者僅作參考,并請自行承擔全部責任。


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