Self-Powered Fast Brazing of Ti-6Al-4V Using Ni/Al Reactive Multilayer Films

Bridges, Denzel; Rouleau, Christopher M.; Gosser, Zachary; Smith, Cary; Zhang, Zhi-Li; Hong, Kunlun; Cheng, Jinquan; Bar‐Cohen, Yoseph; Hu, Anming

doi:10.3390/app8060985

Cited by 12 publications

(2 citation statements)

References 28 publications

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“…The temperature achieved by the PC during RMF joining was estimated computationally using ANSYS. The simulation parameters are shown in Table 2 [19]. The thermal conductivity and heat capacity were assumed to be constant.…”

Section: Rmf Joining and Laser Joining Processesmentioning

confidence: 99%

Joining of Carbon Fiber Reinforced Plastic to Aluminum Alloy by Reactive Multilayer Films and Low Power Semiconductor Laser Heating

Bridges

et al. 2019

Applied Sciences

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This study investigated the characteristics and strength of the dissimilar joints between carbon fiber reinforced plastic (CFRP) epoxy composites and aluminum alloys using two different heating methods, Ni/Al reactive multilayer films (RMF) and a low power continuous wave diode laser. To enhance the adhesion, the top resin layer of the CFRP and the surface of the aluminum alloy were patterned by femtosecond laser. Polycarbonate (PC) was used as a filler material during the joining processes. ANSYS simulation was applied to elucidate the thermal kinetics of the self-propagation reaction and the thermal profile, and evaluate the possibility of joining CFRP to aluminum using Ni/Al RMFs. The SEM image of the cross-section shows that melted PC flowed into the CFRP-aluminum alloy interface, suggesting strong mechanical bonding. A tensile strength of 9.5 MPa was reached using Ni/Al multilayers as heat sources, which provides a new way for joining CFRPs and aluminum alloys in space or under water.

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Section: Rmf Joining and Laser Joining Processesmentioning

confidence: 99%

Joining of Carbon Fiber Reinforced Plastic to Aluminum Alloy by Reactive Multilayer Films and Low Power Semiconductor Laser Heating

Bridges

et al. 2019

Applied Sciences

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“…Realized or not, it is also one of the key elements in traditional macro-welding technologies. Recently, this is being widely used in micro-and nanoscales to develop new joining processes, ranging from nanodevices [28] to electronic packaging [29,30], soldering [31] to light alloy (Ti, Al) [32,33], and high-strength steel joining [34]. The goal of design strategy is to meet the performance requirements of as-fabricated joints through the proper determination of the necessary number of IMCs, layered structures, phases, intrinsic properties of used materials (e.g., hardness, grain size, etc.…”

Section: Micro/nanoscale Joined Interfacesmentioning

confidence: 99%

Joining Technology Innovations at the Macro, Micro, and Nano Levels

Janczak‐Rusch

Sano

2019

Applied Sciences

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With the growing joining requirements of emergent engineering materials and new applications, conventional welding continues to evolve at all scales spanning from the macrodown to the micro-and nanoscale. This mini review provides a comprehensive summary of the research hot spots in this field, which includes but is not limited to selected papers from the international nanojoining and microjoining conference (NMJ) held in Nara, Japan on 1-4 December 2018. These innovations include the integration of nanotechnology, ultrafast laser, advanced manufacturing, and in situ real-time ultra-precision characterization into joining processes. This special issue may provide a relatively full picture of the state-of-the-art research progress, fundamental understanding, and promising application of modern joining technologies.

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Tailoring the Reaction Path: External Crack Initiation in Reactive Al/Ni Multilayers

Matthes,

Glaser,

Vardo

et al. 2024

Adv Eng Mater

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The influence of intentionally externally induced cracks in reactive Al/Ni multilayer systems is investigated. These cracks affect the reaction dynamics and enable tailoring of the reaction path and the overall velocity of the reaction front. The influence of layer variations onto mechanical crack formation and resulting reaction behavior are investigated. High‐speed camera imaging shows the meandering propagation of the reaction front along the crack paths. Therefore, the mechanical cracking process significantly changes the total velocity of the reaction front and thus offers a possibility to control the self‐propagating high‐temperature synthesis process. It is shown that the phase formation remains unaffected despite the applied strains and cracks. This favorable stability in phase formation ensures predictability and provides insight into the adaptation of RMS for precision applications in joints. The results expand the understanding of mechanical cracking as a tool to influence high temperature synthesis in reactive multilayer coatings and provide an opportunity to expand the range of applications.This article is protected by copyright. All rights reserved.

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Self-Powered Fast Brazing of Ti-6Al-4V Using Ni/Al Reactive Multilayer Films

Cited by 12 publications

References 28 publications

Joining of Carbon Fiber Reinforced Plastic to Aluminum Alloy by Reactive Multilayer Films and Low Power Semiconductor Laser Heating

Joining of Carbon Fiber Reinforced Plastic to Aluminum Alloy by Reactive Multilayer Films and Low Power Semiconductor Laser Heating

Joining Technology Innovations at the Macro, Micro, and Nano Levels

Tailoring the Reaction Path: External Crack Initiation in Reactive Al/Ni Multilayers

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