Comparative Studies on Metallurgical and Mechanical Properties of Bimetallic Combination on Incoloy 800 and SS 316L Fabricated by Gas Metal and Shield Metal Arc Welding

Manikandan, M.; Gunachandran, R.; Vigneshwaran, M.; Shet, Sudhakar; Srikanth, Akella; Venkateshkannan, M.; Arivarasu, M.; Rajan, Deva N.

doi:10.1007/s12666-017-1087-9

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…A thermal analysis of the weld metal revealed that the fusion welding of the alloy 800H with nonmatching fillers (e.g., the alloy 82) reduced the freezing range and improved the hot cracking resistance [ 8 ]. Several over-matching fillers for the fusion welding of the alloy 800H have been developed and commercially used to fabricate engineering structures [ 9 ]. However, the structural design often demands thin-section autogenous welding and welding with matching fillers to avoid galvanic corrosion and thermal fatigue.…”

Section: Introductionmentioning

confidence: 99%

Influence of Post Weld Heat Treatment on the Grain Size, and Mechanical Properties of the Alloy-800H Rotary Friction Weld Joints

et al. 2021

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This study evaluated the microstructure, grain size, and mechanical properties of the alloy 800H rotary friction welds in as-welded and post-weld heat-treated conditions. The standards for the alloy 800H not only specify the composition and mechanical properties but also the minimum grain sizes. This is because these alloys are mostly used in creep resisting applications. The dynamic recrystallization of the highly strained and plasticized material during friction welding resulted in the fine grain structure (20 ± 2 µm) in the weld zone. However, a small increase in grain size was observed in the heat-affected zone of the weldment with a slight decrease in hardness compared to the base metal. Post-weld solution heat treatment (PWHT) of the friction weld joints increased the grain size (42 ± 4 µm) in the weld zone. Both as-welded and post-weld solution heat-treated friction weld joints failed in the heat-affected zone during the room temperature tensile testing and showed a lower yield strength and ultimate tensile strength than the base metal. A fracture analysis of the failed tensile samples revealed ductile fracture features. However, in high-temperature tensile testing, post-weld solution heat-treated joints exhibited superior elongation and strength compared to the as-welded joints due to the increase in the grain size of the weld metal. It was demonstrated in this study that the minimum grain size requirement of the alloy 800H friction weld joints could be successfully met by PWHT with improved strength and elongation, especially at high temperatures.

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Section: Introductionmentioning

confidence: 99%

Influence of Post Weld Heat Treatment on the Grain Size, and Mechanical Properties of the Alloy-800H Rotary Friction Weld Joints

et al. 2021

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“…Ates et al [25] developed an arti cial neural network approach to predict the strength of welding joints. Manikandan et al [26] examined the dissimilar Incoloy 800 and AISI 316L steel using`gas tungsten arc welding' and`shield metal arc welding' methods and established excellent joints with a strength higher than the weaker base metal strength (AISI 316L). Kumar and Sinha [27] studied the distribution of temperature elds in dissimilar welding of AISI 304L and St37 by using a 3D moving thermal source and obtained good agreement between nite element model and experimental results.…”

Section: Introductionmentioning

confidence: 99%

Effect of Welding Parameters on Dissimilar Pulsed Laser Joint between Nickel-Based Alloy Hastelloy X and Austenitic Stainless Steel AISI 304L

2019

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The present study aims to investigate the strength and microstructure of dissimilar weld joints composed of Hastelloy X, i.e., a nickel-based superalloy, and austenitic stainless steel 304L. Nd-YAG solid-state pulsed laser is used to perform welding between these two alloys. The e ects of welding speed, laser power, and pulse width on the joint strength are studied by changing the values of the mentioned parameters. Then, the test samples were adopted to conduct uniaxial tensile tests at room temperature. The results obtained from the uniaxial tensile tests showed that the pulse width and laser beam power had maximum e ects on the strength of the joint. Results also indicated that a dissimilar joint with the highest quality could be obtained by optimizing the welding power, beam pulse width, and welding speed. Given the selected parameters for laser welding, the tensile strength of the joint was equal to 95.5% of the weaker alloy strength (AISI 304L), which showed excellent quality of the weld. Furthermore, changes in the composition of the constituting elements of the joint were investigated using the Energy-Dispersive X-Ray Spectroscopy (EDS) tests and scanning electron microscope. The results of the EDS tests indicated that a change in the composition of the constituting elements in this zone occurred on a regular basis.

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Characterization of Microstructure and Stress Corrosion Cracking Susceptibility in a Multi-pass Austenitic Stainless Steel Weld Joint by Narrow-Gap TIG

Zhang

et al. 2020

Metall Mater Trans A

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Comparative Studies on Metallurgical and Mechanical Properties of Bimetallic Combination on Incoloy 800 and SS 316L Fabricated by Gas Metal and Shield Metal Arc Welding

Cited by 7 publications

References 10 publications

Influence of Post Weld Heat Treatment on the Grain Size, and Mechanical Properties of the Alloy-800H Rotary Friction Weld Joints

Influence of Post Weld Heat Treatment on the Grain Size, and Mechanical Properties of the Alloy-800H Rotary Friction Weld Joints

Effect of Welding Parameters on Dissimilar Pulsed Laser Joint between Nickel-Based Alloy Hastelloy X and Austenitic Stainless Steel AISI 304L

Characterization of Microstructure and Stress Corrosion Cracking Susceptibility in a Multi-pass Austenitic Stainless Steel Weld Joint by Narrow-Gap TIG

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