DOI QR코드

DOI QR Code

아크 용사법을 이용한 Inconel 625 코팅 층의 해수 내 캐비테이션 손상 거동

박일초;김성종
Park, Il-Cho;Kim, Seong-Jong

  • 투고 : 2015.12.21
  • 심사 : 2015.12.24
  • 발행 : 2015.12.31

초록

In this paper, arc thermal spray coating was conducted onto the SS400 steel using Inconel 625 wires in order to improve the durability of marine steel structures, and then investigated cavitation damage behavior of Inconel 625 coating layer in sea water. For the Inconel 625 coating layer, surface hardness appeared similar to that of existing high velocity oxy-fuel coating technology with 380~480 HV, but the porosity of about 6 % was larger relatively. During the cavitation experiment, pit damages were originated and grown at the rough surface and pore defect area of Inconel 625 coating layer. And, after the 72 hours of experimental time, weight loss of Inconel 625 coating layer exhibited gradually increasing tendency due to surface damage effect of the undercut.

키워드

Inconel 625;arc thermal spray;cavitation;sea water

참고문헌

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피인용 문헌

  1. Electrochemical Characteristics of Arc Thermal Sprayed Inconel 625 Coating on SS400 Steel in Seawater vol.49, pp.2, 2016, https://doi.org/10.5695/JKISE.2016.49.2.172

과제정보

연구 과제 주관 기관 : 정보통신기술진흥센터, 한국에너지기술평가원