切削Ni-Fe-Cr-Co-Cu系镍基合金刀具磨损的分子动力学分析
Molecular Dynamics Analysis of Tool Wear in Cutting Ni-Fe-Cr-Co-Cu Based Nickel Alloys
DOI: 10.12677/MET.2020.92006, PDF,  被引量   
作者: 郝兆朋, 韩 雪*, 范依航：长春工业大学机电工程学院，吉林 长春
关键词: 镍基合金；微观切削；分子动力学；磨损；Nickel-Based Alloys； Micro-Cutting； Molecular Dynamics； Wear
摘要: 建立了碳化硅增韧氧化铝陶瓷刀具切削Ni-Fe-Cr-Co-Cu系镍基合金的分子动力学模型，计算了刀具与工件原子间的Morse势函数，并对仿真结果进行可视化分析，从原子尺度分析切削镍基合金过程中的刀具磨损，发现切削过程中粘结磨损与扩散磨损往往同时发生，并从配位数、温度、原子位移和晶体有序性方面对刀具磨损过程进行了深入分析，为刀具磨损机制做出了更加完善的微观解释，有利于找到延长刀具使用寿命的方法。
Abstract: The molecular dynamics model of cutting Ni-Fe-Cr-Co-Cu system nickel-based alloy with silicon carbide toughened alumina ceramic tool is established. The Morse potential function between tool and workpiece atoms is calculated and the simulation results are visualized analysis. The tool wear in the process of cutting nickel-based alloy is analyzed from the atomic scale. It is found that bond wear and diffusion wear often occur at the same time during cutting, and from the coordination number, temperature, atomic displacement and crystal order of the tool wear process for in-depth analysis, which makes a more perfect micro-explanation for the tool wear mechanism and helps to find a way to extend the service life of the tool.
文章引用：郝兆朋, 韩雪, 范依航. 切削Ni-Fe-Cr-Co-Cu系镍基合金刀具磨损的分子动力学分析[J]. 机械工程与技术, 2020, 9(2): 60-68. https://doi.org/10.12677/MET.2020.92006

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