Assessing quality of diffusion bonded joints with interlayer using ultrasonic/ultrasound

Kumar, S. Suresh; Krishnamoorthi, J.; Ravisankar, B.; Balusamy, V.

doi:10.1016/j.jmatprotec.2016.11.036

Cited by 16 publications

(11 citation statements)

References 14 publications

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“…Currently, the ultrasonic testing method is more suitable for diffusion-bonded joints, since it has higher sensitivity in comparison to X-ray methods [ 6 ]. Among the ultrasonic technologies, the ultrasonic C-scan inspection technology is the most widely used in the nondestructive evaluation of diffusion bonding [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

A Method for Prediction of Ultrasonic Detectability of Interface Gap Defects on TC4 Diffusion-Bonded Joints

Teng

Zhou

2022

Nanomaterials

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An analysis method for the detectability of defects on the TC4 (Ti-6Al-4V) diffusion bonding interface was proposed in this study. First, a semi-analytical model of the liquid–solid coupling acoustic field with attenuation characteristics was constructed. Based on this, a method for the selection of transducer parameters was investigated for effective focus on the diffusion bonding interface. Second, according to the characteristics of defects on the diffusion bonding interface, an acoustic response model for diffusion bonding defects was established based on Kirchhoff approximation. The detectability of defects on the diffusion bonding interface was analyzed using transducers of different frequencies with different diffusion bonding interface gaps. Finally, an experiment was conducted to verify the reliability of the simulation. The analysis method proposed shows the advantages in the selection of suitable parameters for detecting specific diffusion bonding interface gaps, providing theoretical predictions of the detectability of diffusion bonding interface defects.

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Section: Introductionmentioning

confidence: 99%

A Method for Prediction of Ultrasonic Detectability of Interface Gap Defects on TC4 Diffusion-Bonded Joints

Teng

Zhou

2022

Nanomaterials

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“…Luan et al [22] used the time-scale amplitude and a characteristics extraction algorithm to evaluate bonded and unbonded conditions. Suresh et al [23] and Suresh et al [24] assessed the quality of diffusion bonded joints using an ultrasonic "C" scanning technique, and reported that the mechanical properties of the joint can be effectively characterized.…”

Section: Introductionmentioning

confidence: 99%

Study of a Bimetallic Interfacial Bonding Process Based on Ultrasonic Quantitative Evaluation

Zhang

Liu

et al. 2018

Metals

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The interfacial bonding process and mechanical properties of AISI (American Iron and Steel Institute) stainless steel/Q235A carbon steel were investigated by deformation bonding, heat preservation, and tensile tests. The results reveal that the deformation temperature has a beneficial effect on the bonding rate, and that the critical temperature for the large-area bonding of stainless steel and carbon steel is approximately 700 • C. However, owing to the short contact time, only a shallow diffusion of approximately 2-3 µm can be achieved. A slight decrease in the interfacial bonding rate after heat preservation is correlated to the difference between the thermal expansion coefficients of the two materials, but the thickness of the diffusion layer shows a significant increase. It was found that the strength of the composites is mostly related to the bonding rate and the strength of the relatively soft material, which can be determined using an explicit equation. Moreover, with the increase in the interfacial bonding rate, the crack source changes from the junction of the unbonded and bonded areas of the interface to the interior of the carbon steel. The failure mode evolves from cleavage brittle fracture to ductile-brittle mixed-mode fracture, and then to ductile fracture.

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“…The Cu-Fe interlayer increases the compound's tensile strength; however, the Fe decreases the tensile strength (Xiao et al, 2017). In another study, Cu was joined to Cu with nickel (Ni) as an interlayer, using an ultrasonic diffusion process; the Ni interlayer was found to improve the quality of the bonding joints (Kumar et al, 2017). In a further study, nickel titanium (NiTi) was welded to AISI 216L SS wires with tantalum (Ta) as the interlayer; this joining process used laser welding.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of the Micro Resistance Spot Welding of Aluminum Alloy to Stainless Steel with a Zinc Interlayer

Muzakki

Baskoro²,

Kiswanto³

et al. 2018

IJTech

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All metals have unique advantages and disadvantages in terms of their mechanical properties. Advantages such as flexibility are needed for construction and for the manufacture of sophisticated products. Some industries have improved the mechanical properties of metals by welding dissimilar ones together, such as aluminum alloy (AA) to stainless steel (SS) to reduce vehicle weights in order to improve fuel consumption. However, little research has been conducted on using micro resistance spot welding (mRSW) to join SS and Al by inserting a zinc (Zn) sheet between them as an interlayer. In this study, the mechanical properties of the weldment are tested using a shear test and Vickers micro hardness test. The results are compared using welding times of 6, 8 and 10 cycle times (CTs) and welding currents of 5 and 8 kA during the mRSW process. It is found that the SS, Zn and AA sheets could be joined with mRSW using an 8 kAA welding current and a 6 CT welding time. The micro hardness in the AA-Zn dissimilar joint increased relative to SS-Zn. Using a Zn sheet also improved displacement in the tensile shear test; however, it also increased the hardness of the diffusion zone.

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Assessing quality of diffusion bonded joints with interlayer using ultrasonic/ultrasound

Cited by 16 publications

References 14 publications

A Method for Prediction of Ultrasonic Detectability of Interface Gap Defects on TC4 Diffusion-Bonded Joints

A Method for Prediction of Ultrasonic Detectability of Interface Gap Defects on TC4 Diffusion-Bonded Joints

Study of a Bimetallic Interfacial Bonding Process Based on Ultrasonic Quantitative Evaluation

Mechanical Properties of the Micro Resistance Spot Welding of Aluminum Alloy to Stainless Steel with a Zinc Interlayer

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