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超精密切削中单晶脆性材料脆塑转变过程

王明海 王维 高蕾

王明海, 王维, 高蕾等 . 超精密切削中单晶脆性材料脆塑转变过程[J]. 北京航空航天大学学报, 2013, 39(3): 366-370.
引用本文: 王明海, 王维, 高蕾等 . 超精密切削中单晶脆性材料脆塑转变过程[J]. 北京航空航天大学学报, 2013, 39(3): 366-370.
Wang Minghai, Wang Wei, Gao Leiet al. Process of ducile-brittle transition of crystal brittle materials on ultra-precision machining[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 366-370. (in Chinese)
Citation: Wang Minghai, Wang Wei, Gao Leiet al. Process of ducile-brittle transition of crystal brittle materials on ultra-precision machining[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 366-370. (in Chinese)

超精密切削中单晶脆性材料脆塑转变过程

基金项目: 中航产学研创新基金项目(CXY2010SH29)
详细信息
    作者简介:

    王明海(1971-),男,山东济南人,副教授,wmh@sau.edu.cn.

  • 中图分类号: TH706

Process of ducile-brittle transition of crystal brittle materials on ultra-precision machining

  • 摘要: 借助断裂力学和位错力学的结合,提出了一种通过建立宏观力学和微观力学之间的联系模拟脆性材料脆塑转变过程的方法.该方法在同时考虑单晶材料力学性能和晶体几何结构的基础上,模拟了单晶材料在承受压剪复合应力的条件下,其内部裂纹和位错之间的相互作用机制,阐明了单晶材料在超精密切削加工中的脆塑转变过程;同时在考虑刀具对单晶材料的压剪复合作用的条件下,首次定量给出了实现单晶材料超精密切削加工的最佳刀具前角的方法,并分析了刀具刃口半径对单晶材料脆塑转变过程的影响;最后通过实验对研究结果进行了验证.

     

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出版历程
  • 收稿日期:  2012-03-16
  • 网络出版日期:  2013-03-31

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