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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/10977
Title: Analysis of the Corrosion Behavior of an A-TIG Welded SS 409 Weld Fusion Zone
Authors: Vidyarthy R.S.
Dwivedi D.K.
Published in: Journal of Materials Engineering and Performance
Abstract: AISI 409 (SS 409) ferritic stainless steel is generally used as the thick gauge section in freight train wagons, in ocean containers, and in sugar refinery equipment. Activating the flux tungsten inert gas (A-TIG) welding process can reduce the welding cost during fabrication of thick sections. However, corrosion behavior of the A-TIG weld fusion zone is a prime concern for this type of steel. In the present work, the effect of the A-TIG welding process parameters on the corrosion behavior of a weld fusion zone made of 8-mm-thick AISI 409 ferritic stainless-steel plate has been analyzed. Potentiodynamic polarization tests were performed to evaluate the corrosion behavior. The maximum corrosion potential (Ecorr) was shown by the weld made using a welding current of 215 A, a welding speed of 95 mm/min, and a flux coating density of 0.81 mg/cm2. The minimum Ecorr was observed in the weld made using a welding current of 190 A, a welding speed of 120 mm/min, and a flux coating density of 1.40 mg/cm2. The current study also presents the inclusive microstructure–corrosion property relationships using the collective techniques of scanning electron microscopy, energy-dispersive x-ray spectroscopy, and x-ray diffraction. © 2017, ASM International.
Citation: Journal of Materials Engineering and Performance (2017), 26(11): 5375-5384
URI: https://doi.org/10.1007/s11665-017-3022-y
http://repository.iitr.ac.in/handle/123456789/10977
Issue Date: 2017
Publisher: Springer New York LLC
Keywords: A-TIG welding
corrosion behavior
ferritic stainless steel
flux
potentiodynamic test
ISSN: 10599495
Author Scopus IDs: 57188881635
7004266679
Author Affiliations: Vidyarthy, R.S., Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand 247667, India
Dwivedi, D.K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand 247667, India
Funding Details: The authors gratefully acknowledge the financial support provided to this study by the Board of Research in Nuclear Sciences (BRNS) under the Grant No. 36(2)/14/70/2014-BRNS/ 10416, India.
Corresponding Author: Vidyarthy, R.S.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology RoorkeeIndia; email: vidyashanker01@gmail.com
Appears in Collections:Journal Publications [ME]

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