The use of potentiostatic pulse testing to study the corrosion behavior of welded stainless steels in sodium chloride solution |
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| Affiliation: | 1. ICB, UMR 6303 CNRS-Université Bourgogne Franche Comté, BP 47870, 21078 Dijon, France;2. CEA, DAM, Valduc, 21120 Is-sur-Tille, France;3. Laboratoire Interactions Matériau-Procédé-Environnement, LRC LIMPE, n° VA-11-02, France;1. National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80305, USA;2. National Institute of Standards and Technology, 100 Bureau Dr, Gaithersburg, MD 20899, USA;3. Brazilian Nanotechnology National Laboratory, Caixa Postal 6192, Campinas, SP 13083-970, Brazil;1. Microscopy and Thermo-Physical Property Division, Physical Metallurgy Group, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India;2. Homi Bhabha National Institute — IGCAR, India;3. Department of Metallurgical and Materials Engineering, Indian Institute of Technology-Madras, Chennai-600 036;1. Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02 507 Warsaw, Poland;2. Institute of Manufacturing Processes, Warsaw University of Technology, Narbutta 85, 02-524 Warsaw, Poland;3. Department of Friction and Resistance Welding and Environmental Engineering, Institute of Welding, Czeslawa 16/18, 44-100 Gliwice, Poland;4. Design, Manufacture and Engineering Management, University of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom |
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| Abstract: | In this paper, the corrosion behavior of welded stainless steels is studied by means of the potentiostatic pulse testing method. The evolution of the average pit density and the average pit surface area at the mouth in each zone of the welds is discussed considering its PREN value and its microstructure determined from electron backscatter diffraction (EBSD) experiments. Critical parameters leading to pitting are proposed and weak zones of the welded joints are identified. |
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