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苏斌,陈道明,王震宏,马荣,李鱼飞,夏胜全.基于有限元法的钒合金电子束熔炼过程数值模拟研究[J].稀有金属材料与工程(英文),2019,48(3):711~715.[Su Bin,Chen Daoming,Wang Zhenhong,Ma Rong,Li Yufei and Xia Shengquan.Numerical Simulation of Electron Beam Melting Vanadium Alloys by Finite Element Method[J].Rare Metal Materials and Engineering,2019,48(3):711~715.]
Numerical Simulation of Electron Beam Melting Vanadium Alloys by Finite Element Method
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Received:October 15, 2017  Revised:November 07, 2017
DOI:
Key words: electron beam melting  vanadium alloys  temperature field  numerical simulation
Foundation item:中国工程物理研究院科技发展基金(编号:2015B0203031);科学挑战计划(编号:TZ20160040201)
Author NameAffiliation
Su Bin,Chen Daoming,Wang Zhenhong,Ma Rong,Li Yufei and Xia Shengquan  
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Abstract:
      In this article, a mathematical model was developed to investigate the electron beam melting (EBM) process of vanadium alloys. The temperature distribution of molten V-4Cr-4Ti alloy was obtained by using the model. The effects of different parameters of electron beam melting process on the temperature field and the shape of molten pool were studied. The results showed that the temperature field and the shape of molten pool were influenced by the melting power and scanning radius. With the melting power increasing, the max melt temperature increased linearly and the width and depth of molten pool increased gradually. With the scanning radius increasing, the max melt temperature increased first and then reduced. The optimized parameters of refining vanadium were obtained, and the accuracy of the model was validated by the experimental data.