Corrosion Science and Technology

  • 제21권1호
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  • Pages.68-76
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  • 2022
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  • 1598-6462(pISSN)
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  • 2288-6524(eISSN)
한국부식방식학회 (The Corrosion Science Society of Korea)
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Al-Zn-Zr 용사코팅층의 고체입자 충돌 침식특성에 미치는 봉공처리의 영향

Effect of Sealing Treatment on Solid Particle Impingement Erosion of Al-Zn-Zr Thermal Spray Coating Layer

  • 허호성 (목포해양대학교대학원) ;
  • 김성종 (목포해양대학교기관시스템공학부)
  • Heo, Ho-Seong (Graduate school, Mokpo national maritime university) ;
  • Kim, Seong-Jong (Division of marine engineering, Mokpo national maritime university)
  • 투고 : 2022.02.06
  • 심사 : 2022.02.16
  • 발행 : 2022.02.28
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초록

Several technologies are employed to protect substrates from corrosion and erosion damage. In particular, arc thermal spray coating technology is widely used as anti-corrosive technology for steel and concrete structures and is applied to offshore plants and petrochemical and drilling facilities. In this investigation, solid particle impingement erosion experiments were performed on an arc thermal spraying-coated specimen using 85% Al-14% Zn-1% Zr wire rod in KR-RA steel. This study investigated the effect of fluorosilicone sealing on the erosion resistance characteristics of the thermal spray coating layer. The erosion rates of the thermal spray-coated and sealed specimens were 4.1×10-4 and 8.5×10-4, respectively. At the beginning of the experiment, the fluorosilicone sealant was almost destroyed by the impact of the solid particles. The destruction time for the coating layer was 10 minutes for the thermal spray-coated specimen and 13 minutes for the sealed specimens, indicating that the sealed specimens had better erosion resistance characteristics to solid particle impingement.

키워드

참고문헌

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