Effects of Al–8.5Si–25Cu–<i>x</i>Y filler metal foils on vacuum brazing of SiCp/Al composites

Yu, Yueyue; Xu, Dapeng; Jin-feng, Tian; Wang, Dongbin; Wang, Peng; Niu, Jitai

doi:10.1080/02670836.2017.1401288

Cited by 9 publications

(3 citation statements)

References 37 publications

(44 reference statements)

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“…During the joining process optimization, a lower brazing temperature was preferred with respect to a shorter time because at higher temperatures the Al-alloy sheets were severely affected. The brazing materials were two Al-based amorphous brazing alloys (metal glasses), Al-14Cu-4Mg alloy (0.06 mm thick foil) and Al-7Si-2Mg-1Ti (0.08 mm thick foil) produced by the rapid planar flow casting method [21]. Al-6 flux supplied by Stella Srl, Albizzate, Italy was used to improve the joining surface wettability and to prevent Al-oxide inclusions in the joints.…”

Section: Methodsmentioning

confidence: 99%

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Bangash

Ubertalli

Saverio

et al. 2018

Metals

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Aluminium alloy foam is a lightweight material with high energy absorption properties and can potentially replace bulk Al-components. The aim of this work is to develop a brazing technique to join aluminium facing sheets to aluminium alloy foam to obtain aluminium foam sandwich panels for applications where high service temperature is a requirement. Al-6016 alloy sheets were brazed to aluminium alloy foam using two aluminium based (Al-Cu-Mg and Al-Si-Mg-Ti) metal glasses at 560 • C-590 • C in an argon atmosphere. Microstructure and microhardness profiles of the aluminium alloy sheet/aluminium alloy foam brazed joints were analysed using a microhardness tester and scanning electron microscope equipped with electron dispersion spectroscopy. A three-point bending test was conducted to study the flexural behaviour of the aluminium foam sandwich composite panels.

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Section: Methodsmentioning

confidence: 99%

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Bangash

Ubertalli

Saverio

et al. 2018

Metals

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“…At present, there are many advanced joining technologies derived from the joining method of SiC p /Al MMCs, such as fusion welding [17][18][19] , friction stir welding [20,21] , brazing [22][23][24] , and so on. SiC p /Al MMCs were joined by fusion welding the characteristics of high heat input caused the SiC particle reinforced phase to react violently with the Al alloy matrix to form an Al 4 C 3 brittle phase, resulting in poor performance of the welded joint.…”

Section: Introductionmentioning

confidence: 99%

Nickel-plated SiCp/Al composites brazed in the air: microstructure and mechanical properties of brazed joints under different processes

Qiu,

Cheng,

Niu

et al. 2024

Weld World

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55% SiC p /ZL102 composites were surface metalized by electroless nickel plating. The Al-17Cu-8Mg-2Ni as-cast brazing alloy was treated by an ultra-cold thin strip system using a melt-spinning machine to realize the redistribution of solutes. The obtained foil-like brazing alloy has better exibility, more uniform element distribution, and higher free energy than the as-cast brazing alloy. The 55% SiC p /ZL102 composites after nickel plating were brazed by different brazing processes in the air. The Ni-P coating effectively inhibited the formation of alumina lm on the composite surface. However, the presence of an oxide layer on the foil ller caused a negative effect on the Ni-P coating and hindered the diffusion between elements. SiC, Ni 2 Al 3 , and other phases were detected in the joint port. The characteristic morphologies such as furrows and massive particles indicated that the fracture behavior is brittle fracture. The maximum shear strength of the joint was 88.31 MPa at 590°C.

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“…SiC p /Al MMCs are also favored in the field of electronic packaging due to their high dimensional stability and thermal conductivity. However, the joining methods of SiC p /Al MMCs are still a challenge for researchers during the manufacturing process due to the significant differences between SiC particles and base aluminum in terms of both physical and chemical properties, which severely limit the promotion and application of SiC p /Al MMCs [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning

Qiu

Gao

et al. 2020

Metals

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The joining methods of Aluminum matrix composites reinforced with SiC particles (SiCp/Al MMCs) are a challenge during the manufacturing process due to the significant differences between SiC particles and base aluminum in terms of both physical and chemical properties. Micro-nano brazing filler metal Al-17.0Cu-8.0Mg fabricated by melt-spinning technology was employed to deal with the joining problem of 55 vol.% SiCp/ZL102 composites in this work. The result indicated that the foil-like brazing filler metal contained uniformed cellular nano grains, with a size less than 200 nm. The solidus and liquidus temperatures of the foil-like brazing filler metal decreased by 4 °C and 7 °C in comparison with the values of the as-cast brazing filler metal due to the nanometer size effect. The maximum joint shear strength of 98.17 MPa achieved with a brazing temperature of 580 °C and holding time of 30 min was applied in vacuum brazing process. The width of the brazing seam became narrower and narrower with increasing brazing temperature owning to the strong interaction between the micro-nano brazing filler metal and 55 vol.% SiCp/ZL102 composites. The fracture morphology of the joint made at a brazing temperature of 580 °C was characterized by quasi-cleavage fracture. After brazing, the chemical concentration gradient between the brazing filler metal and base material disappeared.

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Effects of Al–8.5Si–25Cu–xY filler metal foils on vacuum brazing of SiCp/Al composites

Cited by 9 publications

References 37 publications

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Nickel-plated SiCp/Al composites brazed in the air: microstructure and mechanical properties of brazed joints under different processes

Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning

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