Electron beam wire cladding of nickel alloys and stainless steel on a reactor pressure vessel steel

Wahlmann, Benjamin; Körner, Carolin; Nunn, Mike

doi:10.1016/j.msea.2021.141082

Cited by 21 publications

(2 citation statements)

References 34 publications

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“…The unmixed zone along with the fusion boundary is commonly termed as interface. 12 A small fraction of retained delta ferrite was noticed in the interface of the Cu overlay. EDS area scan results confirmed the presence of 97% Cu in the weld overlays while 27% Fe was noticed at the interface.…”

Section: Resultsmentioning

confidence: 97%

Metallurgical aspects and electrical resistivity of hardfaced pure copper layers over AISI 347 with cold metal transfer process

Kannan

Kumar²,

Pramod

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Pure Copper having excellent electrical conductivity was deposited over AISI 347 substrate using Cold Metal Transfer (CMT) process to obtain quality weld overlays without defects. To improve the electrical conductivity post heat-treatment was performed. The microstructural examination revealed the presence of Cu-FCC and Fe-FCC along with retained delta ferrite at the bi-metallic interface. Also, the existence of bi-phasic spherulites rich in Fe and Cr were noticed in the weld overlay side while Cu spherulites were observed in the AISI 347 substrate adjacent to the bi-metallic interface. Energy Dispersive X-Ray Spectroscopy (EDS) elemental mapping and line scan data confirmed the presence of spherulites due to solid-state diffusion near the interface. The spherulite size was reduced in the heat-treated weld overlays and a small fraction of Cu spherulites were observed in the interface. The microhardness of the as-deposited and heat-treated weld overlays revealed the transition of elements at the bi-metallic interface. Post heat-treatment of Cu weld overlays improved the electrical conductivity significantly in comparison to the as-deposited ones. These electrical measurements suggest that pure Cu weld overlays with sufficient conductivity shall be attained with the CMT process for electrical and power generation applications.

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Section: Resultsmentioning

confidence: 97%

Metallurgical aspects and electrical resistivity of hardfaced pure copper layers over AISI 347 with cold metal transfer process

Kannan

Kumar²,

Pramod

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…The processes which used to produced cladding are roll bonding, centric cast, welding, explosive cladding, [1][2].The overlay cladding materials are used in many application like pressure vessels in nuclear reactor, gas and steam turbine, combustion chambers, ovens, welding etc. Cladding produce during arc welding process are porn to cracking due to uncontrolled heat input [3][4][5]. In a marine application, for pressure vessel repairing, SMAW (Shielded Metal Arc Welding) was selected for producing coating to prevent severe localized corrosion [6].…”

Section: Introductionmentioning

confidence: 99%

An overview of recent advancement in grade cladded surface using overlay techniques and various materials

Butaley

Dhole

Khond

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In this review paper, previous studies on effect of cladding on surface of welding using overlay was discussed. The Research papers up to 2021 related with various cladding methods, effect on mechanical properties and overlay methods were discussed. Also, paper discussed the effect on tribological behavior. This paper reported the various metal and its alloy, recent development in advanced materials for cladding in various high temperature applications. The merits, demerits, limitations and future development and possible area of research in welding cladding methods were discussed.

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Effect of Local Rapid Cooling Heat Treatment on Residual Stress of Pressure Vessel Inner Wall Welding Layer

Zhang,

Luo,

Jiang

et al. 2024

J. of Materi Eng and Perform

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Electron beam wire cladding of nickel alloys and stainless steel on a reactor pressure vessel steel

Cited by 21 publications

References 34 publications

Metallurgical aspects and electrical resistivity of hardfaced pure copper layers over AISI 347 with cold metal transfer process

Metallurgical aspects and electrical resistivity of hardfaced pure copper layers over AISI 347 with cold metal transfer process

An overview of recent advancement in grade cladded surface using overlay techniques and various materials

Effect of Local Rapid Cooling Heat Treatment on Residual Stress of Pressure Vessel Inner Wall Welding Layer

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