Evaluation of microstructural and mechanical properties of dissimilar Inconel 625 nickel alloy–UNS S32205 duplex stainless steel weldment using MIG welding

Tümer, Mustafa; Karahan, Tuba; Mert, Tolga

doi:10.1007/s40194-019-00825-x

Cited by 32 publications

(6 citation statements)

References 30 publications

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“…[35] As reported by Guo et al, the lesser amount of the Laves phase will benefit the corrosion resistance capacity of the overlay. [34,36] The Laves phase will be susceptible to corrosion attack due to the segregation of the Nb and Mo from the dendritic cores to interdendritic regions. [37] Furthermore, it becomes apparent that these phases are discretely spread in the interdendritic locations (as in Figure 3a) and are not continuous, allowing them to boost the deposit's resistance to corrosion.…”

Section: Microstructure Of In625 Overlaymentioning

confidence: 99%

High temperature corrosion performance of Inconel 625 hard overlays deposited on stainless steel substrate

Nachimuthu,

Gosipathala,

Arasappan

et al. 2024

Materials & Corrosion

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In elevated conditions, austenitic stainless steels suffer intense damage by corrosion because of the severe oxide scale development. Giving stainless steel a corrosion‐resistant surface coating can prevent excessive damage. In this case, welding‐based overlaying is a potential method to restore the damaged parts as it has a higher productivity rate. This investigation articulates the corrosion resistance behavior of the multiple overlapped Inconel 625 (IN625) weld overlays on the AISI 316L substrate plate. The corrosion resistance at elevated temperatures was investigated with kinetic curves, further revealing the corrosion products from the sample surface. Characterization techniques like scanning electron microscopy with energy‐dispersive spectroscopy, X‐ray diffraction, and Raman spectroscopy were employed to analyze the corrosion products. Hot corrosion kinetics in the molten salt environment (Na2SO4 + V2O5) revealed that the IN625 overlay samples gained a weight of 40.15 mg/cm2, and the substrate had a weight gain of 65.42 mg/cm2. From the hot oxidation kinetics, it is evident that the mass gained by the substrate is more than twice that of the Inconel overlay sample. Furthermore, the formation of oxides and spinel phases rich in nickel (NiO, NiCr2O4) highly influenced the corrosion kinetics of the multiple overlapped IN625 overlay sample. The AISI 316L substrate sample revealed the existence of critical oxide phases such as Fe2O3 and Cr2O3, which were lesser and did not influence the corrosion resistance at 900°C. In the present investigation, the multiple overlapped IN625 weld overlay offered excellent corrosion resistance at high temperature compared to the AISI 316L.

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Section: Microstructure Of In625 Overlaymentioning

confidence: 99%

High temperature corrosion performance of Inconel 625 hard overlays deposited on stainless steel substrate

Nachimuthu,

Gosipathala,

Arasappan

et al. 2024

Materials & Corrosion

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“…Ahmad et al [7] welded the Inconel 625 with DSS 2205 using ytterbium fiber laser but welding with varying energy input and concluded that the with decrease in energy input, the weld bead width reduced which resulted in better mechanical properties. Tumer et al [8] studied the dissimilar welding properties of Inconel 625 and DSS S32205 using metal inert gas technique. They reported that austenite grain coarsening was observed in the heat affected zone (HAZ) of Inconel 625 side whereas ferrite grain coarsening along HAZ was observed in DSS S32205 side.…”

Section: Introductionmentioning

confidence: 99%

Enhancing microstructure and mechanical properties of dissimilar TIG welded duplex 2205 and Ni-based inconel 718 superalloy through post weld heat treatment

Fande,

Kalbande,

Kavishwar

et al. 2024

Eng. Res. Express

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In demanding applications, maintaining structural integrity in dissimilar welded joints like those between duplex stainless steel and Ni-based superalloys requires achieving the best possible mechanical properties. This work examines the impact of post-weld heat treatment (PWHT) on the mechanical characteristics of joints made via double-sided tungsten inert gas (TIG) welding. The dissimilar welded joint was investigated by exposing it to the PWHT for 12 h at 650 °C. Reducing the negative impact of heat generated by welding on the mechanical characteristics and microstructure of the fusion zone was the main goal. To study for changes in the microstructure before and after PWHT, optical microscopy and scanning electron microscopy methods were used for microstructural analysis. To determine the effect of PWHT on the welded joints, mechanical properties such as tensile strength, toughness, and ductility were also assessed. The mechanical properties showed significantly enhanced characteristics and refined grain structures in the fusion zone.

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“…Shielded metal arc (SMA), metal inert gas (MIG), and gas tungsten arc (GTA) are the common welding processes for joining dissimilar metals, DSS, and Ni-based superalloys. One of the major drawbacks of these processes is, however, the higher input heat, which causes such problems as liquid cracking, residual stress, distortion, micro-separation in the inter-dendritic distance, and lower welding scanning speed [ [14] , [15] , [16] , [17] ]. Inconel 625 and AISI 316 joints, using SMA and TIG welding processes, were analyzed by Kourdani et al [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation the effect of dissimilar laser welding parameters on temperature field, mechanical properties and fusion zone microstructure of inconel 600 and duplex 2205 stainless steel via response surface methodology

Soleimani,

Akbari,

Karimipour

et al. 2024

Heliyon

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Evaluation of microstructural and mechanical properties of dissimilar Inconel 625 nickel alloy–UNS S32205 duplex stainless steel weldment using MIG welding

Cited by 32 publications

References 30 publications

High temperature corrosion performance of Inconel 625 hard overlays deposited on stainless steel substrate

High temperature corrosion performance of Inconel 625 hard overlays deposited on stainless steel substrate

Enhancing microstructure and mechanical properties of dissimilar TIG welded duplex 2205 and Ni-based inconel 718 superalloy through post weld heat treatment

Investigation the effect of dissimilar laser welding parameters on temperature field, mechanical properties and fusion zone microstructure of inconel 600 and duplex 2205 stainless steel via response surface methodology

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