Microstructural evolution during low-temperature brazing of WC-Co cemented carbide to AISI 4140 steel using a silver-based filler alloy

Habibi, Farzad; Samadi, Ahad; Nouri, Mohammad Damghani

doi:10.1016/j.ijrmhm.2023.106354

Cited by 8 publications

(2 citation statements)

References 35 publications

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“…Higher pressure produced a better bond and a more ductile fracture was reported, which is due to more disruption of oxide layers from the higher pressure. Some other studies have been conducted where the bonding between tungsten and steel was facilitated by a brazing process [177,[180][181][182][183][184][185] and explosive diffusion bonding process [186]. From all these studies, valuable information regarding the diffusion characteristics of different combinations of elements can be acquired.…”

Section: Other Diffusion Bond Configurationsmentioning

confidence: 99%

Evaluation of Tungsten—Steel Solid-State Bonding: Options and the Role of CALPHAD to Screen Diffusion Bonding Interlayers

Robin

Gräning

Yang

et al. 2023

Metals

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Critical aspects of innovative design in engineering disciplines like infrastructure, transportation, and medical applications require the joining of dissimilar materials. This study investigates the literature on solid-state bonding techniques, with a particular focus on diffusion bonding, as an effective method for establishing engineering bonds. Welding and brazing, while widely used, may pose challenges when joining materials with large differences in melting temperature and can lead to mechanical property degradation. In contrast, diffusion bonding offers a lower temperature process that relies on solid-state interactions to develop bond strength. The joining of tungsten and steel, especially for fusion reactors, presents a unique challenge due to the significant disparity in melting temperatures and the propensity to form brittle intermetallics. Here, diffusion characteristics of tungsten–steel interfaces are examined and the influence of bonding parameters on mechanical properties are investigated. Additionally, CALPHAD modeling is employed to explore joining parameters, thermal stability, and diffusion kinetics. The insights from this research can be extended to join numerous dissimilar materials for specific applications such as aerospace, automobile industry, power plants, etc., enabling advanced and robust design with high efficiency.

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Section: Other Diffusion Bond Configurationsmentioning

confidence: 99%

Evaluation of Tungsten—Steel Solid-State Bonding: Options and the Role of CALPHAD to Screen Diffusion Bonding Interlayers

Robin

Gräning

Yang

et al. 2023

Metals

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“…As a result, it is very important to realize the high-quality joining of SiO 2f /SiO 2 and TC4. Many studies revealed that brazing is one of the most suitable methods to join ceramic and ceramic matrix composite with metals [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. However, when brazing SiO 2f /SiO 2 composite and TC4, two problems exist.…”

Section: Introductionmentioning

confidence: 99%

Study on the Effect of “3D-rGO” Buffer Layer on the Microstructure and Properties of SiO2f/SiO2 and TC4 Brazed Joint

Liu,

Ma,

Chen

et al. 2024

Materials

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Brazing a SiO2f/SiO2 composite with metals is often faced with two problems: poor wettability with the brazing alloy and high residual stress in the joint. To overcome these problems, we report a combined method of selective etching and depositing reduced graphene oxide (rGO) on the surface of a SiO2f/SiO2 composite (3D-rGO-SiO2f/SiO2) to assist brazing with TC4. After the combined treatment, a “3D-rGO” buffer layer formed on the surface layer of the SiO2f/SiO2, and the contact angle was reduced from 130° to 38°, which meant the wettability of active brazing alloy on the surface of SiO2f/SiO2 was obviously improved. In addition, the “3D-rGO” buffer layer contributed to fully integrating the brazing alloy and SiO2f/SiO2; then, the infiltration of the brazing alloy into the surface layer of the SiO2f/SiO2 was enhanced and formed the reduced graphene oxide with a pinning structure in the three dimensional (“3D-pinning-rGO”) structure. Moreover, the joining area of the brazing alloy and SiO2f/SiO2 was expanded and the mismatch degree between the SiO2f/SiO2 and TC4 was reduced, which was achieved by the “3D-pinning-rGO” structure. Furthermore, the concentration of the residual stress in the SiO2f/SiO2-TC4 joints transferred from the SiO2f/SiO2 to the braided quartz fibers, and the residual stress reduced from 142 MPa to 85 MPa. Furthermore, the 3D-pinning-rGO layer facilitated the transfer of heat between the substrates during the brazing process. Finally, the shear strength of the SiO2f/SiO2-TC4 joints increased from 12.5 MPa to 43.7 MPa by the selective etching and depositing rGO method.

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Progress, applications, and perspectives of titanium-based braze filler metal: a review

Li,

Shi,

Zhang

et al. 2023

J Mater Sci

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Microstructural evolution during low-temperature brazing of WC-Co cemented carbide to AISI 4140 steel using a silver-based filler alloy

Cited by 8 publications

References 35 publications

Evaluation of Tungsten—Steel Solid-State Bonding: Options and the Role of CALPHAD to Screen Diffusion Bonding Interlayers

Evaluation of Tungsten—Steel Solid-State Bonding: Options and the Role of CALPHAD to Screen Diffusion Bonding Interlayers

Study on the Effect of “3D-rGO” Buffer Layer on the Microstructure and Properties of SiO2f/SiO2 and TC4 Brazed Joint

Progress, applications, and perspectives of titanium-based braze filler metal: a review

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