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首页> 外文期刊>Applied Surface Science >Numerical and experimental investigations of splat geometric characteristics during oblique impact of plasma spraying
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Numerical and experimental investigations of splat geometric characteristics during oblique impact of plasma spraying

机译：等离子喷涂倾斜冲击过程中飞溅几何特性的数值和实验研究

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摘要

Splats are obtained on the substrates inclined at different angles (0°, 20°, 40° and 60°) by plasma spraying process and characterized by SEM and WYKO® optical surface profiler. Numerical model is developed using CFD software FLOW-3D® to simulate the process of droplet impact, spreading and solidification onto the substrates. Splat characteristics such as spread factor, aspect ratio and fractional factor are defined and compared between simulation and experiment. Fair agreements are obtained. In addition, the impacting behavior including spreading and solidification are analyzed in details from the simulation results. The rates of reduction in droplet kinetic energy during impact, spreading and solidification are also compared between different inclination angles.
机译：通过等离子喷涂工艺在倾斜角度不同（0°，20°，40°和60°）的基板上获得Splats，并通过SEM和WYKO®光学表面轮廓仪进行表征。使用CFD软件FLOW-3D®开发了数值模型，以模拟液滴撞击，散布和固化到基材上的过程。定义了Splat特性，例如扩展因子，纵横比和分数因子，并在仿真和实验之间进行了比较。获得公平协议。此外，从模拟结果中详细分析了包括铺展和凝固在内的冲击行为。还比较了不同倾角之间冲击，散布和凝固过程中液滴动能的降低率。

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  • 来源
    《Applied Surface Science》 |2011年第24期|p.10363-10372|共10页
  • 作者

    Chang-Wei Kang; JiakKwangTan; LunshengPan; ChengYeeLow; AhmedJaffar;

  • 作者单位

    Institute of High Performance Computing, 1 Fusionopolis Way, #16-76 Connexis, Singapore 138632, Singapore;

    Institute of High Performance Computing, 1 Fusionopolis Way, #16-76 Connexis, Singapore 138632, Singapore;

    Institute of High Performance Computing, 1 Fusionopolis Way, #16-76 Connexis, Singapore 138632, Singapore;

    Faculty of Mechanical Engineering, Universiti Teknologi MARA, Shah Alam, Selangor Darul Ehsan, 40450, Malaysia;

    Faculty of Mechanical Engineering, Universiti Teknologi MARA, Shah Alam, Selangor Darul Ehsan, 40450, Malaysia;

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  • 正文语种 eng
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  • 关键词

    splat oblique impact spreading solidification and inclined substrate;

    机译：斜向冲击扩展凝固和倾斜基体;

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