Preliminary investigation on joining performance of SiCp-reinforced aluminium metal matrix composite (Al/SiCp–MMC) by vacuum brazing

Meeting challenges in welding of aluminum alloys through pulse gas metal arc welding

“…Weld pool of composite generally has good viscosity with poor flowability which results in reinforcement denuded zones [14,33] Different melting point and thermal conductivity of reinforcement and matrix alloy results in fusion defects as shown in Fig. 9 [14,32] During welding, interfacial reaction given below produces products which have detrimental effects 4Al + 3SiC → Al 4 C 3 + 3Si [1,14,33] High thermal expansion coefficients can lead to thermal stresses [14] The effect of welding on various regions in the microstructure is summarized in Table 2. Solidification cracking occurs when the thermal stresses that build up during freezing exceed the strength of the solidifying weld metal [28,30].…”

Active-Transient Liquid Phase (A-TLP) Bonding of High Volume Fraction SiC Particle Reinforced A356 Matrix Composite

“…8) (iii) Al-based brazing filler metal including Al-12Si, Al-12Si-1.5Mg, 9,10) Al-24Cu-5Si-1.5Mg 11) and Al-28Cu-5Si-2Mg. 12) Suzumura early demonstrated that Al-12Si-1.5Mg braze could spread on the substrate surface of Al matrix composite reinforced by short alumina fiber while Al-12Si remained the original shape of wire in wettability test at 620°C in vacuum.…”

Wear characteristics of a W6Mo5Cr4V2 high speed steel in friction stir welding of AA6061/SiC/55p composite

“…However, in order to produce larger or more complex structural components, it is inevitable to join AMCs to themselves or other materials. Therefore, some joining processes such as fusion welding [2][3], brazing [4] and diffusion bonding [5][6] were developed, but they resulted, to different extent, in the degradation of mechanical properties.…”