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Cracks may occur in the back of turbine blades during the manufacturing process, which may cause potential safety hazards to the aero-engine. To design proper probes for detecting the back-side crack, this paper builds a finite-element model for eddy current detection of cracks on the back of the nickel-based superalloy plate, which are often used to produce blades. The influence of coil parameters and crack parameters on eddy current signal is investigated. The results show how to choose the proper parameters of a coil and how crack parameters affect eddy current signals.

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Simulation of the Back-Side Cracking of Nickel-Based Superalloy Turbine Blades with Eddy Current Testing

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年

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  • Jia Yuan,
  • Zihao Lei,
  • Xinhai Xue,
  • Hongen Chen,
  • Guangrui Wen,
  • Yu Su,
  • Xuefeng Chen

摘要

Cracks may occur in the back of turbine blades during the manufacturing process, which may cause potential safety hazards to the aero-engine. To design proper probes for detecting the back-side crack, this paper builds a finite-element model for eddy current detection of cracks on the back of the nickel-based superalloy plate, which are often used to produce blades. The influence of coil parameters and crack parameters on eddy current signal is investigated. The results show how to choose the proper parameters of a coil and how crack parameters affect eddy current signals.