International Space Station External Active Thermal Control System lines manufacturing

Ferretti, Stefano; Valenzano, G.; Cugno, W.

doi:10.2514/6.iac-06-b4.2.09

Cited by 4 publications

(1 citation statement)

References 1 publication

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“…Henderson et al suggested that Inconel 718 to stainless steel joints find applications in power generation plants [5]. Ferriti et al reported a need to obtain strong and clean joints between Inconel 718 and stainless steel to construct certain sections of the internal space station [6]. Mortezaie and Shamanian have reported that the Inconel 718 and 310S dissimilar joints find applications in land-based gas turbines [7].…”

Section: Introductionmentioning

confidence: 99%

Dissimilar Rotary Friction Welding of Inconel 718 to F22 Using Inconel 625 Interlayer

et al. 2021

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Dissimilar metal joining has always been a challenging task because of the metallurgical incompatibility and difference in melting points of alloys being joined. Diffusion and mixing of alloying elements from dissimilar base metals at the weld often cause unwanted metallurgical changes resulting in unsuccessful welds or underperformance of the weldment. Solid-state dissimilar friction welds of Inconel 718 and F22 were prepared in this study with an Inconel 625 interlayer to address the carbon enrichment of Inconel 718 during the welding. Defect-free rotary friction welds were produced in this study. Microstructural and mechanical properties investigation of the weldments and base metals was carried out, and results were analysed. Intermixing zone was observed at the weld interface due to the softening of the metal at the interface and rotatory motion during the welding. The high temperatures and the plastic deformation of the intermixing zone and thermo-mechanically affected zone (TMAZ) resulted in the grain refinement of the weld region. The highest hardness was observed at the Inconel 718/F22 weld interface due to the plastic strain and the carbon diffusion. The tensile specimens failed in the F22 base metal for the weld prepared with and without the Inconel 625 interlayer. Inconel 718/F22 welds exhibited lower toughness values compared to the Inconel 718/F22 welds prepared with Inconel 625 interlayer.

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Section: Introductionmentioning

confidence: 99%

Dissimilar Rotary Friction Welding of Inconel 718 to F22 Using Inconel 625 Interlayer

et al. 2021

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Influence of filler metals and welding techniques on the structure–property relationships of Inconel 718 and AISI 316L dissimilar weldments

Ramkumar

Patel

Sathiyamoorthi

et al. 2014

Materials & Design (1980-2015)

118

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Friction stir welding of dissimilar alloy combinations—A Review

ShivaKumar

Rajamurugan

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Friction stir welding (FSW) is one among solid-state welding processes that can be employed for producing joints between dissimilar combinations with more ease than that of fusion welding processes. Several high coupled physical phenomena have addressed FSW as an extremely complex process. It is around three decades of invention, optimization of the parameters have been carried out even today by many researchers all over the world to obtain sound joints. This article focuses mainly on the research developments in the dissimilar FSW (DFSW), with the factors that are involved in joint fabrication between dissimilar materials. From the literature, it is found that the most influential factors in deciding the quality of the joints are pin profile, shoulder shape, welding speed and tool rotational speed. In addition, all other parameters will provide incremental support to it. The study on microstructure in different zones and the mechanical properties of welded specimens are elaborated from the available literature. Special attention is given to the reinforcement of micro- and nano- sized solid particles in the DFSW process. Future studies of DFSW are discussed based on the untracked studies that are not available in the literature.

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International Space Station External Active Thermal Control System lines manufacturing

Cited by 4 publications

References 1 publication

Dissimilar Rotary Friction Welding of Inconel 718 to F22 Using Inconel 625 Interlayer

Dissimilar Rotary Friction Welding of Inconel 718 to F22 Using Inconel 625 Interlayer

Influence of filler metals and welding techniques on the structure–property relationships of Inconel 718 and AISI 316L dissimilar weldments

Friction stir welding of dissimilar alloy combinations—A Review

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