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Mechanical and Metallurgical Analysis of HSLA Steel for Gas Tungsten Arc Welding with Different Shielding Gases
Technical Paper
2019-28-0069
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The special designed HSLA (High Speed Low Alloy) Steel is most commonly used in Naval Steel Structures and aircraft structures due to its indigenous properties. The aim of this paper is used to investigate the effect of shielding gases in the Gas Tungsten Arc Welding process. DMR 249A [HSLA] plates were welded by GTAW by using helium and argon as shielding gas with a flow rate of 16 L/min, the interpass temperature is 140 degree Celsius and the heat input is less than 1.2KJ/min where the impact toughness, Tensile and micro hardness was studied with different shielding gas and the metallurgical properties were analysed in the base metal, heat affected zones and weld zones. A detailed study has been carried out to analyze the elements using Scanning Electron Microscopy and Energy Dispersive Spectroscopy (EDS) analysis. The properties of the high speed low alloy steel carried out reveals a better mechanical properties suitable in naval applications.
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Gurusamy, D., Ranganathan, S., Murthy, P., Ramakrishnan, S. et al., "Mechanical and Metallurgical Analysis of HSLA Steel for Gas Tungsten Arc Welding with Different Shielding Gases," SAE Technical Paper 2019-28-0069, 2019, https://doi.org/10.4271/2019-28-0069.Data Sets - Support Documents
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References
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