Optimization of TIG welding parameters for enhanced mechanical properties in AISI 316L stainless steel welds

Ghumman, Khubaib Zafar; Ali, Sadaqat; Khan, Niaz B.; Khan, M. Ijaz; Ali, Hafiz T.; Ashurov, Mirjalol

doi:10.1007/s00170-024-14277-1

Int J Adv Manuf Technol

2024

DOI: 10.1007/s00170-024-14277-1

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Optimization of TIG welding parameters for enhanced mechanical properties in AISI 316L stainless steel welds

Khubaib Zafar Ghumman,

Sadaqat Ali,

Niaz B. Khan

et al.

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2024

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Welding Pores Evolution in the Detector Bottom-Locking Structure Fabricated Using the Hybrid Pulsed Arc–Laser Method

Yu,

Xu,

et al. 2024

Metals

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The welding of the bottom-locking structure in a detector receptacle plays an essential role in ensuring the safety of nuclear equipment. A pulsed TIG–laser hybrid welding method is proposed to address the problem of welding pores in locking structural parts. The effects of the pulse frequency on the escape of porosity and of porosity on the mechanical properties of the hybrid welding joint were investigated. The results were compared to those of direct current (0 Hz), showing that the pulse frequency affects the stability of the arc. With an increase in pulse frequency, the grain size of the fusion zone gradually decreases, and the flow in the middle area of the molten pool increases. This subjects bubbles in the molten pool to a thrust force, which causes the bubbles to escape to the surface of the molten pool. Compared with 0 Hz, the tensile strength of the joint increased by 67%. This provides a new solution for obtaining reliable welded joints for the bottom-locking structure of detector storage tanks.

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Welding Pores Evolution in the Detector Bottom-Locking Structure Fabricated Using the Hybrid Pulsed Arc–Laser Method

Yu,

Xu,

et al. 2024

Metals

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Optimization of TIG welding parameters for enhanced mechanical properties in AISI 316L stainless steel welds

Cited by 1 publication

References 21 publications

Welding Pores Evolution in the Detector Bottom-Locking Structure Fabricated Using the Hybrid Pulsed Arc–Laser Method

Welding Pores Evolution in the Detector Bottom-Locking Structure Fabricated Using the Hybrid Pulsed Arc–Laser Method

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