Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Inspection System of Coating Layers by Thermal Behavior Effect

열 거동 영향에 따른 코팅층 검사 시스템

  • Yun, Sung-Un (Dept. of Mechanical Engineering, Chosun UNIV.) ;
  • Kim, Jae-Yeol (Dept. of Mechanical System Engineering, Chosun UNIV.) ;
  • Choi, Seung-Hyun (Dept. of Mechanical System Engineering, Chosun UNIV.) ;
  • Kim, Hang-Woo (Dept. of Mechanical and Automotive Engineering, Songwon UNIV.)
  • 윤성운 (조선대학교 기계공학과) ;
  • 김재열 (조선대학교 기계시스템공학과) ;
  • 최승현 (조선대학교 기계시스템공학과) ;
  • 김항우 (송원대학교 기계자동차공학과)
  • Received : 2014.12.15
  • Accepted : 2014.12.26
  • Published : 2014.12.31
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Abstract

Gas turbines for generation are operated under high temperatures, high pressures and in corrosive environments for long periods of time. This environment causes serious damage to these parts. Therefore, the material, coating, and cooling technology used with a gas turbine are important factors with regard to turbine blade development. One method that can be used to protect a product from harsh conditions is the coating technology. A turbine blade undergoes very aggressive thermal stress and experiences high-temperature fatigue. In order to reduce the surface temperature of the components and protect the blade from high-temperature flames, a thermal barrier coating (TBC) is applied to its substrate. This study confirms the applicability of an inspection system for the turbine blade coating layer using an artificial heat source.

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References

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