Abstract: Based on the binary alloy cellular automaton model, combined with the thermodynamic phase equilibrium software, a ternary alloy cellular automaton model was proposed. The stability of the model was verified. The morphology of dendritic growth, the distribution of solute concentration and the effect of disturbance amplitude on dendritic growth during solidification of the welding pool of Ti-6Al-4V ternary alloy were simulated. And carried out metallographic experiments to verify. The results show that the model is stable and can realize the numerical simulation of solidification process in the weld pool of ternary alloy, and the preferred growth of dendrite in the weld pool is remarkable and there is grain boundary segregation. The concentration distribution of Al and V in the liquid phase is approximately the same. As the amplitude of the disturbance increases, the number of dendrites in the molten pool increases gradually, the distance between the dendrite arms decreases, and the competitive growth further strengthens. The simulation results are basically consistent with the experimental results.
1 Liu Y, Qu Z D, Wang B X. Ordnance Material Science and Engineering,2005,28(1),47(in Chinese). 刘莹,曲周德,王本贤.兵器材料科学与工程,2005,28(1),47. 2 Chen S J, Zhu C L. Hot Working Technology,2015,44(3),18(in Chinese). 陈思杰,朱春莉.热加工工艺,2015,44(3),18. 3 Li X Y, Li F, Mou G, et al. Electric Welder,2017,47(4),67(in Chinese). 李兴宇,李芳,牟刚,等.电焊机,2017,47(4),67. 4 Song K, Mao X N, Xin S W, et al. Materials Reports,2018,32(S2),345(in Chinese). 宋凯,毛小南,辛社伟,等.材料导报,2018,32(S2),345. 5 Li J H, Wang Q, Wu W G, et al. Materials Reports B: Research Papers,2013,27(6),152(in Chinese). 李继红,汪强,吴伟刚,等.材料导报:研究篇,2013,27(6),152. 6 Zhang M, Zhou Y L, Xue Q, et al. Transactions of the China Welding Institution,2018,39(3),6(in Chinese). 张敏,周玉兰,薛覃,等.焊接学报,2018,39(3),6. 7 Wang T M, Wei J J, Wang X D, et al. Acta Metallurgica Sinica,2018,54(2),193(in Chinese). 王同敏,魏晶晶,王旭东,等.金属学报,2018,54(2),193. 8 Zhang M, Li L L, Xu A Y, et al. The Chinese Journal of Nonferrous Metals,2015,25(10),2854(in Chinese). 张敏,李露露,徐蔼彦,等.中国有色金属学报,2015,25(10),2854. 9 Zinoviev A, Zinovieva O, Ploshikhin V, et al. Materials & Design,2016,106(15),321. 10 Akbari M, Asadi P, Givi M K B, et al. Modelling and Simulation in Materials Science and Engineering,2016,24(3),035012. 11 Han R, Li Y, Lu S. International Journal of Heat and Mass Transfer,2017,106,1345. 12 Zhan X, Lin X, Gao Z, et al. Journal of Alloys & Compounds,2018,755,123. 13 Shi Y F, Zhang Y, Xu Q Y, et al. Materials Science and Engineering,2012,33(1),012112. 14 Long W Y, Cai Q Z, Wei B K, et al. Acta Physica Sinica,2006,55(3),1341(in Chinese). 龙文元,蔡启舟,魏伯康,等.物理学报,2006,55(3),1341. 15 Zhu M F, Cao W, Chen S L, et al. Journal of Phase Equilibria and Diffusion,2007,28(1),130. 16 Li Q, Wang Y, Zhang H W, et al. Ironmaking & Steelmaking,2009,36(6),442. 17 Chen R, Xu Q Y, Wu Q F, et al. Acta Metallurgica Sinica,2015,51(6),733(in Chinese). 陈瑞,许庆彦,吴勤芳,等.金属学报,2015,51(6),733. 18 Chen R, Xu Q, Liu B. Computational Materials Science,2015,105,90. 19 Chen R, Xu Q Y, Liu B C. Acta Metallurgica Sinica (English Letters),2015,28(2),173. 20 Liu B Z. Simulation of dendritic growth during multicomponent alloy soli-dification with a front-tracking method. Master's Thesis, Shandong Jianzhu University, China,2016(in Chinese). 刘波祖.合金凝固过程枝晶生长的界面前沿跟踪法模拟.硕士学位论
文,山东建筑大学,2016.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2021, Vol. 35 
