화학제염공정에서 환원공정조건에 따른 Inconel 600의 부식손상 특성

• Published in: Biuletyn Uniejowski Vol. 50; no. 5; pp. 332 - 338
• Main Authors: 한민수(Min-Su Han), 정광후(Kwang-Hu Jung), 양예진(Ye-Jin Yang), 박일초(IL-Cho Park), 이정형(Jung-Hyung Lee), 김성종(Seong-Jong Kim)
• Format: Journal Article
• Language: Korean
• Published: 한국표면공학회 2017
• Subjects: 기계공학; Corrosion damage; Inconel 600; Chemical decontamination; Reduction conditions
• ISSN: 1225-8024; 2299-8403; 2288-8403
• DOI: 10.5695/JKISE.2017.50.5.332

In this study, we evaluated tendency and degree of corrosion damages of Inconel 600 after chemical decontamination treatments under three different conditions. In the decontamination processes, the oxidation and reduction were performed as one cycle. Each process was continued up to 5 cycles. Characteristics of corrosion under decontamination processes were evaluated by Tafel analysis and weight loss. Characteristics of surface damage were observed by scanning electron microscope(SEM) and three-dimensional(3D) microscope. As the cycle proceeded, weight loss and corrosion current density increased. Intergranular corrosion damage occurred on the surface of the materials. The result revealed that the surface of Inconel 600 was attacked by the strong acid solution under all chemical decontamination processes, but the degree of the corrosion damage was different depending on the processes.