Nitrogen Solubility in Molten Ni, Ni-Cr, Ni-Mo, and Ni-Cr-Mo Alloys Under Pressurized Atmosphere

Li, Xuze; Li, Huabing; Feng, Hao; Yang, Shouxing; Zhang, Shucai; Zhu, Hong‐Chun; Jiang, Zhong‐Zhong

doi:10.1007/s11663-022-02680-6

Cited by 2 publications

(1 citation statement)

References 32 publications

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“…Furthermore, nitrogen solubility deviates from Sieverts' law in high alloy systems, such as molten Ni-Cr or Fe-Cr. In contrast, Sievert's law is only applicable within a certain range of partial pressures of shielding gases [26].…”

Section: Weld Metal Nitrogen Contentmentioning

confidence: 99%

The influence of shielding gases on keyhole-induced porosity and nitrogen absorption in SS 304 stainless steel fiber laser welds

Hafez

2023

Int J Adv Manuf Technol

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Regarding porosity formation and gas content, choosing the appropriate shielding gas for laser welding is essential for achieving high-quality joints. Keyhole-induced porosity formation tendency and nitrogen content in SS 304 stainless steel welds were investigated based on the nitrogen content in shielding gases during fiber laser welding. Beads-on-plate autogenous welds were made at 5 kW continuous wave (CW) fiber laser in N2 and Ar mixtures. Optical metallography, micro-focused X-ray, X-ray radiography, and high-speed images of the molten pool were used to investigate the porosity formation. In addition, a gas analyzer was used to study the weld metal nitrogen content. The results show that nitrogen significantly impacts the reduction of porosity in the melting zone and increases the dissolved nitrogen in the solidified weld metal, as using pure nitrogen leads to an increase in dissolved nitrogen by 36% higher than the nitrogen content in the base metal. In contrast, it has almost no significant effect on the keyhole mode.

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Section: Weld Metal Nitrogen Contentmentioning

confidence: 99%

The influence of shielding gases on keyhole-induced porosity and nitrogen absorption in SS 304 stainless steel fiber laser welds

Hafez

2023

Int J Adv Manuf Technol

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Thermodynamic Study on Nitrogen Solubility and TiN Formation in Molten Ni-Ti-N Alloys

Li,

Feng,

et al. 2024

Metall Mater Trans B

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Nitrogen Solubility in Molten Ni, Ni-Cr, Ni-Mo, and Ni-Cr-Mo Alloys Under Pressurized Atmosphere

Cited by 2 publications

References 32 publications

The influence of shielding gases on keyhole-induced porosity and nitrogen absorption in SS 304 stainless steel fiber laser welds

The influence of shielding gases on keyhole-induced porosity and nitrogen absorption in SS 304 stainless steel fiber laser welds

Thermodynamic Study on Nitrogen Solubility and TiN Formation in Molten Ni-Ti-N Alloys

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