Home Metallic Materials - Kovové materiály 2014 Metallic Materials Vol. 52 (2014), no. 5, pp.287-298

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Metallic Materials Vol. 52 (2014), no. 5, pp.287-298

Title: Comparative assessment on microstructure and mechanical properties of continuous and pulse-current GTA welds of AISI 304 and Monel 400
Author: K. RAMKUMAR DEVENDRANATH, N. ARIVAZHAGAN, S. NARAYANAN

Abstract: This study investigates the weldability, microstructure and mechanical properties of dissimilar AISI 304 and Monel 400 welds using continuous and pulse-current GTA welding processes. Dissimilar joints of AISI 304 and Monel 400 are widely used in the marine and offshore environments, oil and gasification plants. These welding processes are carried out using three filler wires, namely E309L, ENiCu-7 and ENiCrFe-3. Microstructure examination is carried out on these dissimilar weldments. In addition, a comparative analysis on the microhardness, tensile test values on these welds using the above-said filler materials is also discussed. The weldments obtained from ENiCu-7 and ENiCrFe-3 filler wires offer high strength and ductility. These studies would be useful for the fabricators implementing these dissimilar weldments in the offshore applications.

Keywords: dissimilar metal welding, mechanical properties, Monel 400, AISI 304 stainless steel
Year: 2015, Volume: 52, Issue: 5 Page From: 287, Page To: 298
doi:10.4149/km_2014_5_287


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