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[1]王翠萍,李林阳,卢 勇,等.辐照条件下Zr-Nb二元合金的相图计算[J].厦门大学学报(自然科学版),2018,57(02):194-200.[doi:10.6043/j.issn.0438-0479.201705036]
 WANG Cuiping,LI Linyang,LU Yong,et al.Phase Diagram Calculation of Zr-Nb Binary Alloy Under Irradiation[J].Journal of Xiamen University(Natural Science),2018,57(02):194-200.[doi:10.6043/j.issn.0438-0479.201705036]
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《厦门大学学报(自然科学版)》[ISSN:0438-0479/CN:35-1070/N]

卷:
57卷
期数:
2018年02期
页码:
194-200
栏目:
研究论文
出版日期:
2018-03-31

文章信息/Info

Title:
Phase Diagram Calculation of Zr-Nb Binary Alloy Under Irradiation
文章编号:
0438-0479(2018)02-0194-07
作者:
王翠萍李林阳卢 勇郭毅慧刘兴军*
厦门大学材料学院,福建 厦门 361005
Author(s):
WANG CuipingLI LinyangLU YongGUO YihuiLIU Xingjun*
College of Materials,Xiamen University,Xiamen 361005,China
关键词:
Zr-Nb二元合金 辐照 有效自由能 相图计算
Keywords:
Zr-Nb binary alloy irradiation effective free energy phase diagram calculation
分类号:
TG 111.5
DOI:
10.6043/j.issn.0438-0479.201705036
文献标志码:
A
摘要:
通过考虑辐照引起的弹道混合效应,应用热力学模型和辐照条件下的有效自由能模型,研究了辐照诱发产生的缺陷对Zr-Nb二元合金相稳定性的影响.基于Zr-Nb二元合金的扩散参数和已优化的热力学参数,计算了不同辐照条件下Zr-Nb二元合金的稳态相图.计算结果表明,Zr-Nb二元合金的稳态相图与热力学平衡相图在低温下存在显著的差异:在辐照条件下,原本在高温时稳定存在的(βZr,Nb)相延伸至低温区域,同时出现了一个低温包析反应(Nb)+(αZr)(βZr,Nb),包析反应的温度随着辐照强度的增大而升高,从而使得(βZr,Nb)相的范围也随之增大.
Abstract:
By taking into account the ballistic mixing effect caused by irradiation,a model describing effective free energy for alloys under irradiation was used to study the influence of irradiation-induced defect on phase stability in the Zr-Nb binary alloy.Based on the effective free energy model and the thermodynamic model,the phase diagrams of Zr-Nb binary alloys under different irradiation intensities were calculated and the difference between the calculated phase diagram and the conventional thermodynamic equilibrium phase diagram was discussed.The obtained results showed that,under irradiation,the high-temperature stable(βZr,Nb)phase was stabilized,resulting in a peritectoid reaction(Nb)+(αZr)(βZr,Nb)at a lower temperature.With the increase of the irradiation intensity,the temperature of the peritectoid reaction increased,and the phase region of the(βZr,Nb)phase also increased.

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备注/Memo

备注/Memo:
收稿日期:2017-05-18 录用日期:2017-07-06
基金项目:国家重点研发计划(2017YFB0702401); 中央高校基本科研业务费专项(20720170038)
*通信作者:lxj@xmu.edu.cn
引文格式:王翠萍,李林阳,卢勇,等.辐照条件下Zr-Nb二元合金的相图计算[J].厦门大学学报(自然科学版),2018,57(2):194-200.
Citation:WANG C P,LI L Y,LU Y,et al.Phase diagram calculation of Zr-Nb binary alloy under irradiation[J].J Xiamen Univ Nat Sci,2018,57(2):194-200.(in Chinese)
更新日期/Last Update: 1900-01-01