Topic
Shielded metal arc welding
About: Shielded metal arc welding is a research topic. Over the lifetime, 4462 publications have been published within this topic receiving 40560 citations. The topic is also known as: manual metal arc welding & flux shielded arc welding.
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TL;DR: In this paper, the effects of welding current on the macro-morphology, microstructure and mechanical properties of tungsten inert gas (TIG) welded AZ31 magnesium alloy joints with TiO 2 coating were investigated.
18 citations
TL;DR: In this paper, the effect of different durations of post weld heat treatments (05,2,10,50 hours) are analyzed on the Mechanical properties of Cr-Mo alloy steel.
18 citations
TL;DR: In this paper, the influence of welding consumables and welding processes on metallurgical characteristics of armour grade Q&T steel joints was studied by various metallogical characterization procedures, and the results showed that the joints fabricated by using low hydrogen ferritic steel (LHF) consumables offered lower degree of HAZ softening and there was no evidence of hydrogen induced cracking in the joint fabricated using LHF consumables.
18 citations
TL;DR: In this paper, three typical welding electrodes including Ni electrode (DIN8563), Carbon steel electrode and Hardening electrode were compared to compare the weldability of the base metal and found that using Ni substrate electrode reduce the unwanted phases (martensitic and carbides).
Abstract: In this work, improving the abrasion–corrosion behavior of gray cast iron used in centrifugal pumps was studied. These pumps are usually made of gray cast iron (BS:1452Gr220) and are repaired by Shielded Metal Arc Welding (SMAW). Three different typical welding electrodes including Ni electrode (DIN8563), Carbon Steel electrode (DIN1913), and Hardening electrode (DIN8555) were used to compare the weldability of the base metal. Microstructural differences for three types of electrodes were studied and forming of different phases was analyzed. Corrosion and abrasion tests were conducted and related to welding conditions. Experimental results showed that using Ni substrate electrode reduce the unwanted phases (martensitic and carbides). Furthermore, in comparison with the base metal, the abrasion behavior of all weldments was improved. It was also determined that the carbon steel electrode has a higher corrosion resistance in zero-resistance ammeter (ZRA) test compared to other electrodes.
17 citations