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Carbon Steel Plate - Astrophysics Data System

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Last Updated: 16 January 2022

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Influence of nickel on microstructure and weld metal toughness of shielded metal arc welded low carbon steel plates

Fusion welding can result in microstructure changes and degrade the impact toughness around the welded joint. Multipass welding in flat position was achieved on 16 mm thick low carbon steel plates with shielded metal arc welding. Three experimental group samples were created with 3. 2 mm diameter electrodes containing 0. 3% Ni, 0. 9 percent Ni, and a mixture of 0. 3% and 0. 9 percent Ni, respectively. The impact energy decreased as the test temperature increased, according to impact tests of the weld metals. Using a Ni-based electrode made in Ni 0. 3 Ni, the finer grains had improved impact toughness in comparison to the weld metal made with a 0. 3 Ni electrode. Ni has almost identical results with 0. 3% Ni, with the same result obtained with two electrodes, 0. 3 percent and 0. 9 percent.

Source link: https://ui.adsabs.harvard.edu/abs/2021AIPC.2384d0002O/abstract


Effect of metal inert gas welding parameters on the hardness and bending strength of carbon steel plates

MIG process analysis was conducted to determine the effect of welding parameters on the hardness and bending strength of welded carbon steel plates. Welds were produced by MIG welding machine with different welding characteristics, including welding current of 10-200 A, arc voltage of 11-26. 5 V, wire welding speed of 1. 5-16. 5 m/min, and CO 2 flow rate as inert gas at 5-25 l/min. The findings reveal that the hardness rises as the wire welding speed decreases and increased welding current. The flow rate of inert gas, not effecting the hardness of welding zone, is increasing Oppositely. In addition, the hardness of welded zone was enhanced with increasing the welding current value. MIG welding process with maximum welding conditions of 100 A, 18 V, 8. 5 m/min wire welding speed, and 10 l/min CO 2 flow rate can be achieved at welding conditions of 100 A, 18 V, 8. 5 m/min wire welding speed, and 10 l/min CO 2 flow rate.

Source link: https://ui.adsabs.harvard.edu/abs/2021AIPC.2372i0002J/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions