Welding Distortion of Austenitic Stainless Clad Steel

Tatsukawa, Itsuro; Oda, Isamu; Tanaka, Isamu; Oyama, Izumi

doi:10.2207/qjjws1943.43.684

Cited by 1 publication

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“…Park and Lee [18] have studied the mechanical properties and sensitivity of carbon steel A516 Gr 70 cladded to stainless steel A316. Itsuro et al [19] investigated the distortion of the austenitic stainless clad steel. They reported that the formation of shrinkage and distortion were due to the welding process of the mild steel.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of temperature field and distortions in multi-pass welding of stainless cladded steel

Ghorbel

Ktari

Haddar

2021

Int J Adv Manuf Technol

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The stainless clad steel materials (particularly A283-Gr-C hot-rolled to austenitic stainless steel plate SA240 TP 316L) have become widely used in the fabrication of heat exchangers, pressure vessels, and other components owing to their very interesting properties and low production cost. These cladded materials are mostly joined using multi-pass welding techniques. The temperature distribution that supervenes during welding affects the microstructures and the mechanical properties and may generate residual stresses in the heat-affected zone of the welded plates. Since limited experimental data are available in the literature regarding the complex cases of multi-pass welding of cladded steel materials, a thorough experimental study was performed in order to evaluate the temperature distribution on the welded plates. In fact, eight K-type thermocouples were fixed at different distances from the weld centerline in order to record the temperature evolution along longitudinal, transversal, and thickness directions during the welding process. Due to the unavoidable effects of the generated heat fluxes that always follow the welding, several dimensional changes were occurred on the welded plates. In this study, the longitudinal shrinkage and the angular distortion generated during the welding process by the effect of the heat fluxes were investigated. Then, tensile and bending tests were performed in order to check the welded plate reliability. It was found that (i) the welded joint presents a higher mechanical tensile strength than the parent metal and (ii) no separations, fractures, or tearing appear on the weld joint surface after the bending test.

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Section: Introductionmentioning

confidence: 99%