Xu Zhang

Personal Information

  • Education Level: PhD graduate
  • Degree: Doctor of engineering
  • Gender: Male
  • Alma Mater: Huazhong University of Science and Technology
  • School/Department: School of Mechanics and Engnieering
  • Multiscale Modeling of Material, Gradient Nanostructured Material, High Entropy Alloys, Interface
  • Discipline:Mechanics
    Aerospace Science and Technology
    Materials Science and Engineering
    Mechanical Engineering
    Metallurgical Engineering
    Advanced Manufacturing
    Aeronautical Engineering
    Materials Engineering
    Metallurgical Engineering
    Mechanical Engineering
    Solid Mechanics
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    Multiscale Modeling of Material >Research Focus

    激光冲击强化航空航天材料的多尺度力学

    航空发动机叶片疲劳断裂和磨损,严重影响装备的安全性、可靠性和使用寿命。我国无论是引进的还是国产的航空发动机,都曾因部件疲劳断裂引起过严重飞行事故和大面积停飞。激光冲击强化技术可在钛合金叶片表面制备梯度纳米结构,引入残余压应力以提高其疲劳性能。多尺度材料力学研究组围绕 “钛合金叶片激光冲击梯度纳米结构跨尺度力学行为及疲劳寿命预测”开展研究,预期在钛合金叶片激光冲击梯度纳米结构跨尺度本构模型、考虑服役应力场和应变梯度效应的疲劳寿命模型研究方面有所突破,进一步提升钛合金强韧性和抗疲劳性能;建立钛合金叶片疲劳寿命预测模型,为现役航空发动机钛合金叶片激光冲击强化技术工程应用提供理论基础,进一步指导钛合金激光冲击强化的微结构优化设计。 

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    激光冲击强化TC4合金叶片