Microstructure and alloy element distribution of dissimilar joint 316L and EH36 in laser welding

Rong, Youmin; Xu, Jiajun; Lei, Ting; Wang, Wenbin; Sabbar, Ahmed Adil; Huang, Yu; Wang, Chunming; Chen, Zhi

doi:10.1080/13621718.2017.1410342

Cited by 8 publications

(2 citation statements)

References 15 publications

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“…By visual tests and weld bead build evaluation, welding defect detection and inclusion analysis wasperformed. Investigation of the weld uniformity by element distribution analysis, using a JEOL scanning electron microscope with an electron dispersive X-ray spectroscopy analyzer, was carried out [ 43 ].…”

Section: Materials and Experimental Designmentioning

confidence: 99%

Numerical and Metallurgical Analysis of Laser Welded, Sealed Lap Joints of S355J2 and 316L Steels under Different Configurations

et al. 2020

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This paper presents the results of laser welding of dissimilar joints, where low-carbon and stainless steels were welded inthe lap joint configuration. Performed welding of austenitic and ferritic-pearlitic steels included a sealed joint, where only partial penetration of lower material was obtained.The authors presented acomparative study of the joints under different configurations. The welding parameters for the assumed penetration were estimated via anumericalsimulation. Moreover, a stress–strain analysis was performed based on theestablished model. Numerical analysis showed significant differences in joint properties, therefore, further study was conducted. Investigation of the fusion mechanism in the obtained joints wascarried out using electron dispersive spectroscopy (EDS) and metallurgical analysis. The study of the lap joint under different configurations showed considerable dissimilarities in stress–strain distribution and relevant differences in the fusion zone structure. The results showed advantages of using stainless steel as the upper material of a microstructure, and uniform chemical element distribution and stress analysis is considered.

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Section: Materials and Experimental Designmentioning

confidence: 99%

Numerical and Metallurgical Analysis of Laser Welded, Sealed Lap Joints of S355J2 and 316L Steels under Different Configurations

et al. 2020

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“…Owing to its convenience and cost-effectiveness, underwater wet welding is widely used in offshore structures. Metallurgical problems usually arise when the welding process of dissimilar joints is conducted in the air [2][3][4]. The adverse effects of water, such as rapid cooling rate, high diffusible hydrogen content, arc instability and quenching microstructure, make it a more challenging task to obtain a sound dissimilar-metal joint [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of dissimilar welds between 16Mn and 304L in underwater wet welding

Liu

et al. 2019

Science and Technology of Welding and Joining

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Dissimilar joint between 304L austenitic stainless steel and low-alloy steel 16Mn was underwater wet welded using self-shielded nickel-based tubular wire. Microstructure, mechanical properties and corrosion behaviour of dissimilar welded joints were discussed. Ni-based weld metal was fully austenitic with well-developed columnar sub-grains. Type II boundary existed between Nibased weld metal and ferritic base metal in underwater welds similar to that in air welds. Major alloying elements distributed non-uniformly across the austenitic weld metal/16Mn interface. Maximum hardness values in wet welding appeared in a coarse-grained heat-affected zone at the 16Mn side, which possessed very low impact toughness. Underwater Ni-based welded joints fractured at Ni-based weld metal under tensile test. Ni-based weld metal had favourable corrosion resistance similar to 304L base metal.

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Multi-objective prediction and optimization of X70 pipeline steel welding morphology in overhead laser-MAG hybrid welding based on RSM-NSGA-II

Liu,

Han,

Song

et al. 2024

Int J Adv Manuf Technol

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Microstructure and alloy element distribution of dissimilar joint 316L and EH36 in laser welding

Cited by 8 publications

References 15 publications

Numerical and Metallurgical Analysis of Laser Welded, Sealed Lap Joints of S355J2 and 316L Steels under Different Configurations

Numerical and Metallurgical Analysis of Laser Welded, Sealed Lap Joints of S355J2 and 316L Steels under Different Configurations

Microstructure and mechanical properties of dissimilar welds between 16Mn and 304L in underwater wet welding

Multi-objective prediction and optimization of X70 pipeline steel welding morphology in overhead laser-MAG hybrid welding based on RSM-NSGA-II

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