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Volume 24 Issue 6
Jun.  2017
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文章导航 >  矿物冶金与材料学报（英文）  > 2017  >  24(6): 657-669
Zi-qiang Pi, Xin Lu, Yuan Wu, Lu-ning Wang, Cheng-chang Jia, Xuan-hui Qu, Wei Zheng, Li-zhi Wu, and Qing-li Shao, Simulation of jet-flow solid fraction during spray forming, Int. J. Miner. Metall. Mater., 24(2017), No. 6, pp. 657-669. https://doi.org/10.1007/s12613-017-1448-8
Cite this article as:
Zi-qiang Pi, Xin Lu, Yuan Wu, Lu-ning Wang, Cheng-chang Jia, Xuan-hui Qu, Wei Zheng, Li-zhi Wu, and Qing-li Shao, Simulation of jet-flow solid fraction during spray forming, Int. J. Miner. Metall. Mater., 24(2017), No. 6, pp. 657-669. https://doi.org/10.1007/s12613-017-1448-8
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研究论文Open Access

Simulation of jet-flow solid fraction during spray forming

  • Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China

  • State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

  • Heye Special Steel Co., Ltd., Shijiazhuang 052165, China

  • 通讯作者:

    Xin Lu    E-mail: luxin@ustb.edu.cn

    Xuan-hui Qu    E-mail: quxh@ustb.edu.cn.

  • A numerical model was developed to simulate the jet-flow solid fraction of W18Cr4V high-speed steel during spray forming. The whole model comprises two submodels:one is an individual droplet model, which describes the motion and thermal behaviors of individual droplets on the basis of Newton's laws of motion and the convection heat transfer mechanism; the other is a droplet distribution model, which is used to calculate the droplet size distribution. After being verified, the model was used to analyze the effects of parameters, including the initial gas velocity, deposition distance, superheat degree, and the ratio of gas-to-metal mass flow rates, on the jet-flow solid fraction. Finally, an equation to predict the jet-flow solid fraction directly and conveniently according to the parameters was presented. The values predicted by the equation show good agreement with those calculated by the numerical model.
    • Research ArticleOpen Access

    Simulation of jet-flow solid fraction during spray forming

    + Author Affiliations
      Abstract
    • A numerical model was developed to simulate the jet-flow solid fraction of W18Cr4V high-speed steel during spray forming. The whole model comprises two submodels:one is an individual droplet model, which describes the motion and thermal behaviors of individual droplets on the basis of Newton's laws of motion and the convection heat transfer mechanism; the other is a droplet distribution model, which is used to calculate the droplet size distribution. After being verified, the model was used to analyze the effects of parameters, including the initial gas velocity, deposition distance, superheat degree, and the ratio of gas-to-metal mass flow rates, on the jet-flow solid fraction. Finally, an equation to predict the jet-flow solid fraction directly and conveniently according to the parameters was presented. The values predicted by the equation show good agreement with those calculated by the numerical model.
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