Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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The Effect of Aircraft Parking Environment on Atmospheric Corrosion Severity

항공기 주기환경이 대기부식위험도에 미치는 영향

  • Yun, Juhee (Aero Technology Research Institute, Republic of Korea Air Force) ;
  • Lee, Dooyoul (Department of Defense Science, Graduate School of Defense Management, Korea National Defense University) ;
  • Park, Sungryul (Aero Technology Research Institute, Republic of Korea Air Force) ;
  • Kim, Min-Saeng (Aero Technology Research Institute, Republic of Korea Air Force) ;
  • Choi, Dongsu (Republic of Korea Air Force Academy, Republic of Korea Air Force)
  • 윤주희 (공군항공기술연구소) ;
  • 이두열 (국방대학교국방관리대학원국방과학학과) ;
  • 박승렬 (공군항공기술연구소) ;
  • 김민생 (공군항공기술연구소) ;
  • 최동수 (공군사관학교 항공우주공학과)
  • Received : 2021.01.18
  • Accepted : 2021.03.04
  • Published : 2021.04.30
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Abstract

Atmospheric corrosion severity associated with aircraft parking environment was studied using metallic specimens, and temperature and humidity sensors installed at each aircraft operating base. Data were analyzed after a year of exposure. Silver was used to measure chloride deposition by integrating X-ray photoelectron spectroscopy depth profiles. Carbon steel was utilized to determine the corrosion rate by measuring the weight loss. The time of wetness was determined using temperature and humidity sensor data. Analysis of variance followed by Tukey's "honestly significant difference" test indicated that atmospheric environment inside the shelter varied significantly from that of unsheltered parking environment. The corrosion rate of unsheltered area also varies with the roof. Hierarchical clustering analysis of the measured data was used to classify air bases into groups with similar atmospheric corrosion. Bases where aircraft park at a shelter can be grouped together regardless of geographical location. Unsheltered bases located inland can also be grouped together with sheltered bases as long as the aircraft are parked under the roof. Environmental severity index was estimated using collected data and validated using the measured corrosion rate.

Keywords

Acknowledgement

이 연구는 공군 항공기술연구소의 지원에 의해 연구되었으며 지원기관에 감사드립니다.

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