Friction stir welding of SS 316 LN and Nitronic 50 jacket sections for application in superconducting fusion magnet systems

Gaddam, Supreeth; Haridas, Ravi Sankar; Sanabria, Charlie; Tammana, Deepthi; Berman, Diana; Mishra, Rajiv S.

doi:10.1016/j.matdes.2022.110949

Cited by 7 publications

(2 citation statements)

References 37 publications

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“…AISI 2205 [399,400], AISI 2507 [401][402][403][404] Hardness, wear, machinability, residual stress, and corrosion resistance Mostly in wind and solar energy Carbon steels IS 2062 [405], AISI 1045 [406][407][408][409][410][411][412], AISI 1018 [413] Hardness, wear, surface roughness, tensile strength, yield strength, ultimate tensile strength, elongation, and residual stress Steels can be used in hydroelectrical, biomass, solar, and geothermal energy Other steels Nitronic steels 40 [414], 50 [415] High-strength steels ASTM A36 [416] Cast steels ASTM A743 [417], SAE J431 G10 [418] ACSR [419] Bearing steel AISI 52100 [326,328,[420][421][422] Low-alloyed steels SAE 1008 [423], AISI 4340 [424], AISI 4140 [424] Structural steel S235 [425], S355 [426,427], S460 [428] Residual tress, hardness, friction, wear, fatigue, impact toughness, corrosion resistance, and machinability In all energy sectors Table 5 presents the non-ferrous alloys that have been CT-treated and have potential in the current and future energy sectors.…”

Section: Duplex Steelsmentioning

confidence: 99%

Sustainable New Technology for the Improvement of Metallic Materials for Future Energy Applications

Jovičević-Klug,

Rohwerder

2023

Coatings

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The need for a more sustainable and accessible source of energy is increasing as human society advances. The use of different metallic materials and their challenges in current and future energy sectors are the primary focus of the first part of this review. Cryogenic treatment (CT), one of the possible solutions for an environmentally friendly, sustainable, and cost-effective technology for tailoring the properties of these materials, is the focus of second part of the review. CT was found to have great potential for the improvement of the properties of metallic materials and the extension of their service life. The focus of the review is on selected surface properties and corrosion resistance, which are under-researched and have great potential for future research and application of CT in the energy sector. Most research reports that CT improves corrosion resistance by up to 90%. This is based on the unique oxide formation that can provide corrosion protection and extend the life of metallic materials by up to three times. However, more research should be conducted on the surface resistance and corrosion resistance of metallic materials in future studies to provide standards for the application of CT in the energy sector.

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Section: Duplex Steelsmentioning

confidence: 99%

Sustainable New Technology for the Improvement of Metallic Materials for Future Energy Applications

Jovičević-Klug,

Rohwerder

2023

Coatings

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“…The FCC structure results from an alloying element balancing that maintains the austenitic phase stable at higher cryogenic temperatures. 4 Nitronic-50 alloy has twice the yield strength of 304 and 316 steel at room temperature and has more excellent corrosion and chloride pitting resistance than 304 in most conditions. 5 Moreover, Nitronic-50 has considerably low-temperature impact resistance and high-temperature oxidation resistance.…”

Section: Introductionmentioning

confidence: 99%

Enhancing low-speed WEDM machining capabilities on Nitronic-50 with a constant frequency ultrasonic hybrid method

Balasubramaniyan,

Rajkumar

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Nitronic-50 stainless steel is a high-strength and corrosion-resistant austenitic premium steel. It requires improved surface characteristics due to its wide use in various applications like fasteners, marine hardware, hydroelectric-power turbines, pressure vessels, etc. This work focuses on machining hard-to-machine Nitronic-50 steel is unconventionally machined using constant frequency ultrasonic-aided low-speed wire electrical discharge machining (USV-LS-WEDM) to enhance its machined surface integrity. This method achieves effective results when cutting high-strength materials with intricate shapes. Material removal rate (MRR) and surface roughness (Ra) were measured by considering inputs such as servo voltage (SV), pulse off time ( Toff), pulse on time ( Ton) and current (I) with an ultrasonic-vibration range of 20,000 Hz. The appropriate selection and usage of LS-WEDM parameters is a challenging process and is done with parametric analysis. The MRR of Nitronic-50 was enhanced with an increase in Ton and I along with a reduction in Toff and SV. Surface roughness (Ra) decreased with a gradual reduction in Ton, I, and an increase in SV. The USV-WEDM was compared with a stand-alone WEDM indicating that the MRR for USV-WEDM was improved by 12% and the Ra was decreased by 9% due to effective distribution of spark discharges, which increased material erosion and redistribution of molten metal characteristics. Machining quality for hard-to-machine Nitronic-50 steel was certainly enhanced via hybrid ultrasonic vibration with the existing LS-WEDM.

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Welding Speed and Pin Penetration Interaction in Mechanical Properties of Friction Stir Welded Lap-Joint AA6061/316 Stainless Steel

Ho,

Duong,

Quach

et al. 2024

J. of Materi Eng and Perform

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Friction stir welding of SS 316 LN and Nitronic 50 jacket sections for application in superconducting fusion magnet systems

Cited by 7 publications

References 37 publications

Sustainable New Technology for the Improvement of Metallic Materials for Future Energy Applications

Sustainable New Technology for the Improvement of Metallic Materials for Future Energy Applications

Enhancing low-speed WEDM machining capabilities on Nitronic-50 with a constant frequency ultrasonic hybrid method

Welding Speed and Pin Penetration Interaction in Mechanical Properties of Friction Stir Welded Lap-Joint AA6061/316 Stainless Steel

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