Effect of Welding Consumables on Dissimilar AISI304/AISI1015 Steels Butt Joint Properties

Abstract:

The butt joint of dissimilar AISI304/AISI1015 steels was produced by a Shielded Metal Arc Welding (SMAW) with 3 types of the covered electrodes and the welding current of 80-120 A. The investigation of joint properties for the impact strength, the hardness, and the microstructure, was performed. The SMAW butt joint that was welded by the E312 covered electrode and 100A welding current showed the highest impact strength of 112 J. The chromium was the important reinforced element affected to increase in the hardness and the impact strength of the joint by forming and dispersing the chromium carbide in the weld metals. Interface structure of the carbon steel/the weld metal clearly showed a small combined area of the metals in opposition to the interface structure of the stainless steel/ the weld metal which had a large combined area of the metals.

• Periodical: Key Engineering Materials (Volume 777)
• Pages: 344-349
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.777.344
• Online since: August 2018
• Authors: Surat Triwanapong, Kittipong Kimapong*
• Keywords: Dissimilar Metal Joint, Electrode, Impact Strength, Shielded Metal Arc Welding

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