Ultrasonic-promoted rapid transient liquid phase bonding of high volume fraction SiC particle reinforced aluminum-based metal matrix composite in low temperature

Ultrasonics ◽  
2020 ◽  
Vol 106 ◽  
pp. 106159 ◽  
Author(s):  
Lin Ma ◽  
Changzhuang Zhou ◽  
Qi Wen ◽  
Mingshen Li ◽  
Heng Zhong ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Low Temperature ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Volume Fraction ◽  
Transient Liquid Phase ◽  
High Volume ◽  
Transient Liquid Phase Bonding ◽  
Sic Particle

Transient Liquid Phase Bonding of Al/Mg2Si Composite Using a Cu-Ni Mixed Powder

2013 ◽  
Vol 829 ◽  
pp. 632-637
Author(s):  
Milad Ghayoor Baghbani ◽  
Ali Mohamad Hadian
Keyword(s):  
Liquid Phase ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Transient Liquid Phase ◽  
Transient Liquid Phase Bonding ◽  
Mixed Powder ◽  
X Ray ◽  
Bond Zone ◽  
Central Bond

Transient liquid phase bonding of Al/Mg2Si metal matrix composite (MMC) was investigated using a Cu-Ni mixed powder interlayer (1:1 proportion by weight) in an argon environment at various temperatures and holding time. The composite (MMC), containing 15% Mg2Si particles, was produced by in situ technique. The use of pure copper interlayer in Al/Mg2Si metal matrix composite causes reinforcement particles segregation at the bond interface. The region of weakness produced by the particles segregation at the bond region has been found to promote preferential failure during tensile testing. Using a mixture of Ni and Cu powder as filler material have shown less segregation of particles reinforcement along central bond zone. The composition and microstructure of the joined area were examined by X-ray diffraction (XRD) and scanning electron microscopy equipped with an energy dispersive X-ray spectroscopy (EDS). Shear tests were conducted to the samples to evaluate the effect of bonding duration on weldabillity. As the bonding time increases, with continual diffusion, the structural heterogeneity is diminished, and the microporosities are eliminated at the central bond zone. The shear strength of joints increased with increasing bonding duration.

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