Ultrasound-assisted brazing of Cu/Al dissimilar metals using a Zn–3Al filler metal

Xiao, Yong; Ji, Hongjun; Li, Mingyu; Kim, Jongmyung

doi:10.1016/j.matdes.2013.06.016

Cited by 80 publications

(29 citation statements)

References 23 publications

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“…That would introduce large amount of copper dissolving into the melted filler. A layer of intermetallic compounds (IMCs) was produced and identified as CuZn 5 by EDS and XRD analysis, which was identified in our previous works [8,19]. With the increase of ultrasonic time, the amount of IMCs increased obviously, including their thickness at the interface near Cu and their fraction in the seam.…”

Section: Resultsmentioning

confidence: 84%

“…Recently, ultrasound-assisted brazing by using Zn-Al hypereutectic fillers has been received renewed attention [8][9][10], since it has moderate brazing temperatures (381°C melting temperature for eutectic Zn-Al), higher corrosion resistance and superior mechanical properties [11,12]. Additionally, as aluminum has a good wettability for alumina ceramic, the fillers consisting of aluminum are frequently used to braze ceramics [13].…”

Section: Introductionmentioning

confidence: 99%

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Effect of ultrasonic transmission rate on microstructure and properties of the ultrasonic-assisted brazing of Cu to alumina

Chen

2017

Ultrasonics Sonochemistry

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Fluxless brazing of bare alumina with Cu was conducted with an ultrasonic-assisted brazing technique by a Zn-14wt.%Al filler. The shear strength of Cu/alumina joints (84MPa) exhibited 27% larger than the alumina/Cu joints (66MPa) due to different intermetallic phases and their morphologies formed in the seam under the same parameters, which are probably attributed to the transmission rate of ultrasonic energy varying with density of the ultrasonic horn-contacted materials. Overgrowth of stalactite-like CuZn contributes to better thermal dissipation of the ultrasonic-assisted brazed Cu/alumina joints.

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Section: Resultsmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Effect of ultrasonic transmission rate on microstructure and properties of the ultrasonic-assisted brazing of Cu to alumina

Chen

2017

Ultrasonics Sonochemistry

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“…After analysis of soldered joint, it was found that the boundary was formed by the CuZn4, Cu5Zn8 and CuZn IM layers (Haque 2012). Formation of these layers was confirmed in another study, too (Takaku 2008 Authors (Li 2011, Xiao 2013) have studied the microstructure and mechanical properties of joints by application of ZnAl5 and ZnAl3 solders. Removal of surface oxides was performed with the aid of ultrasonic energy.…”

Section: Introductionmentioning

confidence: 85%

Research of Interaction Between Zn Based Solders and Cu, Al Substrates

Prach

Kostolný

Koleňák

2014

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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The paper deals with the study of interaction between Cu, Al substrates (purity 5N) and ZnAl4, ZnAg6Al6 zinc solders for higher application temperatures. Soldering was performed with power ultrasound in the air without flux application at temperature 420 °C. Acting time of ultrasonic vibration was 3 s and ultrasound frequency was 40 kHz. Soldered joints were assessed by optical light microscopy and EDX microanalysis. Intermetallic layers (IM) CuZn4 and Cu5Zn8 were formed at the Cu/ZnAl4 boundary. The βZn-αAl mechanical mixture was formed at the Al/ZnAl4 boundary. AgZn3 and Cu5Zn8 IM layers were formed at the Cu/ZnAg6Al6 boundary, and mechanical mixture of βZn-αAl and AgZn3 intermetallic mixture were formed at the boundary Al/ZnAg6Al6.

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“…Using USV in brazing is an attractive assisting tool [37][38][39][52][53][54][55][56][57][58]; however, studying the combined effects of USV with the technological parameters of brazing process and developing a joint interface more compatible with the USV have not yet received an adequate attention. e focus in this review will be on the titanium/aluminum interface which includes Albased filler alloys for brazing titanium/titanium and titanium/aluminum parent (base) components, taking into consideration the technological parameters and procedures.…”

Section: Introductionmentioning

confidence: 99%

Low‐Temperature Brazing of Titanium Using Al‐Based Filler Alloys

Muhrat

Puga

Barbosa

2018

Advances in Materials Science and Engineering

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Brazing of titanium using low melting temperature filler alloys is a preferred choice regarding cost and preserving its mechanical properties. However, brazing titanium at low temperature is still a challenge, especially regarding aluminum-based filler alloys. During the last years, several brazing methods and Al-based fillers were developed to meet industrial requirements; some of them might achieve some of those requirements. e use of ultrasound in brazing has gained increased attention recently, which helps to reduce the time and the necessity for a special brazing environment, subsequently, reducing cost and increasing applicability. Brazing titanium below the α↔β transformation temperature, using commercial and experimental Al-based fillers of different compositions, is presented in this review; including the procedures of traditional and ultrasound-assisted brazing methods. Correspondingly, the effects of brazing conditions and alloying elements on the mechanical properties and the intermetallic compounds formation are examined.

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Ultrasound-assisted brazing of Cu/Al dissimilar metals using a Zn–3Al filler metal

Cited by 80 publications

References 23 publications

Effect of ultrasonic transmission rate on microstructure and properties of the ultrasonic-assisted brazing of Cu to alumina

Effect of ultrasonic transmission rate on microstructure and properties of the ultrasonic-assisted brazing of Cu to alumina

Research of Interaction Between Zn Based Solders and Cu, Al Substrates

Low‐Temperature Brazing of Titanium Using Al‐Based Filler Alloys

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