Dissimilar welding of duplex stainless steel with Ni alloys: A review

Maurya, Anup Kumar; Pandey, Chandan; Chhibber, Rahul

doi:10.1016/j.ijpvp.2021.104439

Cited by 104 publications

(30 citation statements)

References 151 publications

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“…Also, the joints were welded with roughly the same arc energy, thus the heat cycle influence on the heat affected zone is also the same. Nevertheless, the lowest corrosion rate, 1.6% weight loss, was measured in case of ER 308LSi and ER 309LSi welding wires, which correlates to the results of Maurya et al [24], who also found that ER 309LMo rod gave the best corrosion resistance for the dissimilar welding of superaustenitic and super duplex grades.…”

Section: Corrosion Resistancesupporting

confidence: 87%

Microstructure and Corrosion Properties of Austenitic and Duplex Stainless Steel Dissimilar Joints

Varbai

Bolyhos

Kemény

et al. 2022

Period. Polytech. Mech. Eng.

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In several applications duplex stainless steels should be joint welded to conventional austenitic stainless steels. In this research LDX 2101 lean duplex stainless steel sheets were welded to conventional 304 austenitic stainless steels, using gas tungsten arc welding. For the welded joints three different welding rods were used: ER 308L, ER 309LSi, and ER 2209. For gas shielding two different shielding gases were used: argon and argon +2% nitrogen. It was found that the nitrogen addition to the shielding gas promoted austenite formation in the weld metal. It was also found Schaeffler-diagram modified by Outokumpu showed a very good estimation to the ferrite content and chemical composition of the weld metal. The ferrite content estimated by the Outokumpu-diagram, showed a close correlation to measured ferrite contents, the highest error was 30%. In case of the chemical composition of the weld metal, the Cr- and Ni-contents were estimated with a maximum of 15% error. In terms of the corrosion resistance, the best pitting corrosion resistance was achieved using the 308L welding rod with argon shielding gas, where the weight loss was 1.6% after the 24 hours immersion test.

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Section: Corrosion Resistancesupporting

confidence: 87%

Microstructure and Corrosion Properties of Austenitic and Duplex Stainless Steel Dissimilar Joints

Varbai

Bolyhos

Kemény

et al. 2022

Period. Polytech. Mech. Eng.

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“…Adding nickel to the weld pool, which is an austenite stabilizer, a post-welding heat treatment may be used to fulfill the requirements of standards. This approach has become the subject of several studies as the balanced microstructure generally entails prospering mechanical properties [26]. Wu et al [27] performed laser beam welding tests on 2205 DSS with nickel powder addition.…”

Section: Effect Of Nickel Addition On the Microstructure Of The Fusio...mentioning

confidence: 99%

Electron beam welding of 2205 duplex stainless steel with nickel-based filler wire using multi-beam technique

et al. 2022

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The duplex stainless steels have many favorable properties attributed to their two-phase microstructure consisting of almost equal fractions of ferrite and austenite. Therefore, they are widely used in the offshore, petroleum, and chemical industries as a base material for pressure vessels and pipelines. Such components often possess large thicknesses, which can be effectively welded with electron beam. This process is characterized by rapid cooling combined with a relatively great loss of nitrogen, resulting in insufficient austenite formation. To compensate this phenomenon, the addition of nickel, in the form of wire, was performed in this study. This promoted the formation of austenite at the same cooling rate, so that approximately an equal amount of ferrite and austenite was achieved. Beam oscillation was applied to maintain good dilution even at large depth/width ratios. Furthermore, the multi-beam technique was implemented to reduce the spatter formation and provide a higher process stability. This allows the spatial, but not temporal, separation of the melting-off of the wire and the main welding process. The joints produced in this way exhibit a good weld dilution and consequently an austenite distribution with a low inhomogeneity. Additionally, a narrow heat-affected zone was produced.

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“…The joint between different materials has drawn attention in recent years, since they have a good cost-safety ratio. Due to their great versatility, dissimilar welds are applied in the chemical, nuclear, petrochemical, aeronautical, and automotive industries, where it is possible to weld metallic materials such as pipes, profiles, plates, and sheets of different chemical compositions [1,2]. However, the mechanical strength for the dissimilar joint must be characterized for proper design and safety requirements.…”

Section: Introductionmentioning

confidence: 99%

Dissimilar Dual Phase-Low Carbon Steel Joints by the GMAW Process Subjected to Impact Load

Gómora

Ambriz

García

et al. 2022

Metals

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Dissimilar welding used in the automotive area are possible joints with the GMAW process; however, its structural performance must be evaluated. The focus of this work is to study the microstructural–mechanical properties of dissimilar welding DPC340Y590T dual phase–JSC270C low carbon steels. Microhardness profile, tensile, and impact tests were used to evaluate the mechanical behavior, while optical and scanning electron microscopy were employed to evaluate the microstructural changes. The tensile strength was 540 and 275 MPa in dual phase and low carbon, respectively. Weld thermal cycles were obtained by means of K type thermocouples. The welding heat input generated martensite and grain growth in the dual phase heat affect zone, while grain growth and perlite phase increased in the low carbon heat affected zone. The variation in microhardness profile was produced by the presence of different phases, and the temperature at the end of dual phase heat affect zone was approximately 242 °C. During impact tests, the absorbed energies were 19.3, 50.7, and 50.2 J for low carbon, dual phase steel, and the welded dissimilar joint respectively. Finally, dissimilar welding subjected to tensile test failed in the low carbon steel (270 MPa), out of the heat affect zone, thus a good dissimilar joint between both steels was obtained.

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Dissimilar welding of duplex stainless steel with Ni alloys: A review

Cited by 104 publications

References 151 publications

Microstructure and Corrosion Properties of Austenitic and Duplex Stainless Steel Dissimilar Joints

Microstructure and Corrosion Properties of Austenitic and Duplex Stainless Steel Dissimilar Joints

Electron beam welding of 2205 duplex stainless steel with nickel-based filler wire using multi-beam technique

Dissimilar Dual Phase-Low Carbon Steel Joints by the GMAW Process Subjected to Impact Load

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