Investigation of the Intermetallic Formation on Wet Underwater Welding of AISI 4012 Steel

Abstract:

The objectives of the study is to investigate the formation of intermetallic compound and the mechanical properties of the underwater welding. AISI 4012 steel was selected as the material and two types of electrode E6013 and E7018. The variations of electric current used in this study were 80,100, and 120 amperes. The underwater welding was conducted in plain water pool and 3 meters depth by using SMAW. Tensile test and SEM-EDS were carried out to investigate the tensile strength and appearence the intermetallic layer.The results of this study indicated that the highest value of tensile stresswas found on the use E7018 electrodes and 80 amperes electric current. While the lowest value was found in the use E6013 electrodes with 120 amperes. Intermetallic layer was detected base on the SEM-EDS investigation.

• Periodical: Materials Science Forum (Volume 991)
• Pages: 10-16
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.991.10
• Online since: May 2020
• Authors: Agus Dwi Anggono*, Suwantri Suwantri, Waluyo Adi Siswanto, Joko Sedyono
• Keywords: Electrode Types, Intermetallic, SEM-EDS, Underwater Welding, Welding Current

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