Weld overlay coating of Inconel 617 M on type 316 L stainless steel by cold metal transfer process

Varghese, Paulson; Vetrivendan, E.; Dash, Manmath Kumar; Ningshen, S.; Kamaraj, M.; Mudali, U. Kamachi

doi:10.1016/j.surfcoat.2018.10.073

Cited by 89 publications

(28 citation statements)

References 25 publications

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“…In order to achieve an appropriate price-to-lifetime ratio and significantly extend the life of the boiler parts, an approach based on creating cladded layers of a more corrosion-resistant material on common boiler steels is frequently applied [ 15 , 16 , 17 , 18 , 19 , 20 ]. The desirable materials for working in conditions that increase the risk of high-temperature corrosion include nickel-based alloys and super-alloys [ 16 , 17 , 18 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. Among other things, these materials are characterized by properties such as good weldability, high creep resistance, and resistance to high-temperature corrosion.…”

Section: Introductionmentioning

confidence: 99%

“…The higher price related to their composition from elements such as chromium or nickel can be considered the main disadvantage of these alloys, but in some cases, this issue can be solved by preparing a cladded layer. One interesting alternative to traditional welding processes is the method of cold metal transfer (CMT) [ 19 , 20 , 23 , 26 , 27 , 28 ]. In comparison to traditional MIG/MAG (metal inert gas/metal active gas) welding, the amount of heat applied to the base material (common boiler steel) is significantly lower when using CMT.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion Resistance of Inconel 625 CMT-Cladded Layers after Long-Term Exposure to Biomass and Waste Ashes in High-Temperature Conversion Processes

et al. 2020

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The present study investigated the effect of corrosion on an Inconel 625-cladded layer using the cold metal transfer (CMT) method. The corrosion was caused by various ashes and high process temperatures. The ashes were obtained from the biomasses of mixed wood and oat straw, as well as from sewage sludge, by ashing. Long-term corrosion tests were carried out at 650 °C over a period of 1000 h. The chemical composition, mineral phases, and corrosion effects were studied by X-ray fluorescence (XRF), scanning electron microscopy equipped with energy-dispersive X-rays (SEM–EDX), and X-ray diffraction (XRD) from the surface and on the cross-section of the samples. The chemical composition of the ashes was quite different, but representative of their particular fuel. Together with the effects of the operating temperature and mass transfer, significant differences in the degree of the corrosion depth were detected for the various ashes. For the investigated samples, the corrosion mechanisms were inferred based on the identified corrosion products.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of Inconel 625 CMT-Cladded Layers after Long-Term Exposure to Biomass and Waste Ashes in High-Temperature Conversion Processes

et al. 2020

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“…Zhang et al and Cao et al focused on the application of the process in dissimilar alloy welding with a low heat input, which inhibits the brittle intermetallic compound formation [22,23]. Varghese et al reported that the CMT welding technique could produce crack and defect free claddings of Inconel 617M on SUS 316L with great metallurgical adherence on the substrate surface [24]. However, to my knowledge, the assessment of diverse sources in terms of dissimilar metal welding indicated that few studies have yielded regarding the dissimilar welding between Inconel 718 and SUS 316 employing CMT; thus, this study provides a test basis for engineering applications of nickel-based/stainless steel dissimilar metal joints.…”

Section: Introductionmentioning

confidence: 99%

Microstructures and mechanical properties of Ni/Fe dissimilar butt joint welded using the cold metal transfer

Tang

Ding

et al. 2020

Mater. Res. Express

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In this study, dissimilar butt joints were formed between as-rolled Inconel 718 and SUS 316 using cold metal transfer (CMT) with ERNiFeCr-2 filler metal at a welding speed of 5 mm s −1 and three different welding currents (130, 160 and 190 A). The morphology, microstructure, and mechanical properties of the joints and the mechanism by which the joint interface formed were studied. The results indicate that CMT welding parameters have an effect on the weld appearance and that the weld metal exhibits better wettability and spreadability at a welding current of 160 A. The interface between the weld metal and SUS 316 base metal was characterized by applying an optical microscopy (OM) and scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectrometry (EDS). The results revealed that no obvious diffusion of Ni and Fe ions was identified across the joint interface. The fractures that initiated in the joints during the tension testing formed in the heat-affected zone (HAZ) of the SUS 316 base metal, and the high-temperature tensile strength of the joint was observed to be 424 MPa, which is approximately 87.06% of that of SUS 316 base metal (487 MPa) and 67.19% of that of Inconel 718 base metal (631 MPa). In terms of the elongation, the joint (21.9%), Inconel 718 base metal (21.2%) and SUS 316 base metal (22.3%) elongations were similar. For comparison, the joint also was tested at room temperature, resulting in a tensile strength and elongation of 511 MPa and 27.5%, respectively. A spherical elemental Ni segregation morphology was clearly observed at the high-temperature fracture. Hardness studies demonstrated that the weld metal hardness is higher than that of the SUS 316 base metal.

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“…In these cases, the use of functionally graded materials (FGMs) would be more appropriate. FGMs are characterized by the variation in composition across the volume [38] and their properties can be tailored for a particular application [39]. Several processes have been used to build FGMs like material extrusion [38], laser metal deposition [39,40], laser cladding [41], or laser rapid forming [42].…”

Section: Introductionmentioning

confidence: 99%

Functionally Graded SS 316L to Ni-Based Structures Produced by 3D Plasma Metal Deposition

Rodrı́guez

Hoefer

André

et al. 2019

Metals

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In this investigation, the fabrication of functionally graded structures of SS316L to Ni-based alloys were studied, using the novel technique 3D plasma metal deposition. Two Ni-based alloys were used, a heat resistance alloy Ni80-20 and the solid-solution strengthened Ni625. Different configurations were analyzed, for the Ni80-20 a hard transition and a smooth transition with a region of 50% SS316L/50% Ni80-20. Regarding the structures with Ni625, a smooth transition configuration and variations in the heat input were applied. The effect of the process parameters on the geometry of the structures and the microstructures was studied. Microstructure examinations were carried out using optical and scanning electron microscopy. In addition, microhardness analysis were made on the interfaces. In general, the smooth transition of both systems showed a gradual change in the properties. The microstructural results for the SS316L (both systems) showed an austenite matrix with δ-phase. For the mixed zone and the Ni80-20 an austenite (γ) matrix with some M7C3 precipitates and laves phase were recognized. The as-built Ni625 microstructure was composed of an austenite (γ) matrix with secondary phases laves and δ-Ni3Nb, and precipitates M7C3. The mixed zone exhibited the same phases but with changes in the morphology.

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Weld overlay coating of Inconel 617 M on type 316 L stainless steel by cold metal transfer process

Cited by 89 publications

References 25 publications

Corrosion Resistance of Inconel 625 CMT-Cladded Layers after Long-Term Exposure to Biomass and Waste Ashes in High-Temperature Conversion Processes

Corrosion Resistance of Inconel 625 CMT-Cladded Layers after Long-Term Exposure to Biomass and Waste Ashes in High-Temperature Conversion Processes

Microstructures and mechanical properties of Ni/Fe dissimilar butt joint welded using the cold metal transfer

Functionally Graded SS 316L to Ni-Based Structures Produced by 3D Plasma Metal Deposition

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Weld overlay coating of Inconel 617 M on type 316 L stainless steel by cold metal transfer process

Cited by 89 publications

References 25 publications

Corrosion Resistance of Inconel 625 CMT-Cladded Layers after Long-Term Exposure to Biomass and Waste Ashes in High-Temperature Conversion Processes

Corrosion Resistance of Inconel 625 CMT-Cladded Layers after Long-Term Exposure to Biomass and Waste Ashes in High-Temperature Conversion Processes

Microstructures and mechanical properties of Ni/Fe dissimilar butt joint welded using the cold metal transfer

Functionally Graded SS 316L to Ni-Based Structures Produced by 3D Plasma Metal Deposition

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Weld overlay coating of Inconel 617 M on type 316 L stainless steel by cold metal transfer process