摘要
Numerical simulation is one of the important auxiliary methods for studying materials-related problems. In this study, phase field simulation was employed to investigate the refinement behavior of BAg55CuZn-x B brazing alloys. Simulation and experimental studies were conducted for B contents ranging from 0 wt.% to 0.2 wt.%. The results demonstrated that the addition of 0.05 wt.% B in the brazing alloy leads to a significant refinement effect. As the B content increases, the grain size further reduces, and a refinement stagnation phenomenon occurs after exceeding 0.15 wt.%. The solidification process of brazing alloys with different B content was predicted by simulation, and the simulation results showed that with the increase of B content, the initial number of nucleation increased, and the radius of the dendrite tip decreased. The simulation results are in good agreement with the experimental findings, providing further evidence of the refining effect of the B element and the reliable predictive capability of the phase field model.
作者
朱宇辰
龙伟民
魏世忠
郭鹏
武汉琦
樊喜刚
魏永强
Zhu Yuchen;Long Weimin;Wei Shizhong;Guo Peng;Wu Hanqi;Fan Xigang;Wei Yongqiang(State Key Laboratory of Advanced Brazing Filler Metals&Technology,Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China;Henan University of Science and Technology,Luoyang 471003,China;CITIC Heavy Industries Co.,Ltd.,Luoyang 471003,China;Beijing Xinghang Electro-mechanical Equipment Co.,Ltd.,Beijing 100074,China;School of Aerospace Engineering,Zhengzhou University of Aeronautics,Zhengzhou 450046,China)
基金
the Major Science and Technology Project of Henan Province.(No.221100230300).
