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Experimental Study of the Temperature Distribution in Welded Thin Plates of Duplex Stainless Steel for Automotive Exhaust Systems
Technical Paper
2016-01-0503
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper reports the experimental efforts in recording the 2-dimensional temperature distribution on autogenous thin plates of UNS S32304 steel during welding. The butt-welded autogenous joints were experimentally performed by the GTAW (Gas Tungsten Arc Welding) process with either argon or argon-2%nitrogen atmospheres. The temperatures cycles were recorded by means of thermocouples embedded by spot welding on the plate's surfaces and connected to a multi-channel data acquisition system. The laser flash method (LFM) was also used for the determination thermal diffusivity of the material in the thickness direction. The temperature curves suggest a relationship between the microstructures in the solidified and the heat affected zone with the diffusivity variation. This is a region where there had been a major incidence of heat. The obtained results validate the reliability of the experimental used apparatus.
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Authors
Citation
Betini, E., Cione, F., Mucsi, C., Colosio, M. et al., "Experimental Study of the Temperature Distribution in Welded Thin Plates of Duplex Stainless Steel for Automotive Exhaust Systems," SAE Technical Paper 2016-01-0503, 2016, https://doi.org/10.4271/2016-01-0503.Also In
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