scholarly journals Transient Liquid Phase Bonding of Semi-Solid Metal 7075 Aluminum Alloy using ZA27 Zinc Alloy Interlayer

Metals ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 637 ◽  
Author(s):  
Chaiyoot Meengam ◽  
Yongyuth Dunyakul ◽  
Dech Maunkhaw ◽  
Suppachai Chainarong
Keyword(s):  
Aluminum Alloy ◽  
Liquid Phase ◽  
Bonding Strength ◽  
Transient Liquid Phase ◽  
Solid Metal ◽  
Bonding Time ◽  
Zinc Alloy ◽  
Transient Liquid Phase Bonding ◽  
Bonding Zone ◽  
Semi Solid

Transient Liquid Phase Bonding (TLPB) process of semi-solid metal 7075 aluminum alloys (SSM7075) using 50 μm thick of ZA27 zinc alloys as interlayers for the experiment were carried out under bonding temperatures of 480 and 540 °C and bonding times of 30, 60, 90 and 120 min respectively. In the bonding zone, the semi-solid state of ZA27 zinc alloy interlayers were diffused into the SSM7075 aluminum alloy. Examination of the bonding zone using Scanning Electron Microscope (SEM) and Energy-dispersive X-ray spectroscopy (EDS) showed that the precipitation of the intermetallic compound of η(Zn–Al–Cu), β(Al2Mg3Zn3), T′(Zn10Al35Cu55) and MgZn2 were formed in the bonding zone. The better homogenized microstructure in the bonding zone was formed when increasing bonding time and bonding temperature. The highest bonding strength was recorded at 17.44 MPa and average hardness was at 87.67 HV with the bonding time of 120 min and temperature at 540 °C. Statistically, the coefficient of determination analysis of bonding strength data was at 99.1%.

Transient Liquid Phase Bonding of 2D Fiber Reinforced Carbon-Carbon Composites

2007 ◽  
Vol 336-338 ◽  
pp. 1260-1262 ◽  
Author(s):  
Jiang Tao Xiong ◽  
Jing Long Li ◽  
Fu Sheng Zhang ◽  
Zhong Ping Wang
Keyword(s):  
Shear Strength ◽  
Liquid Phase ◽  
Bonding Strength ◽  
Transient Liquid Phase ◽  
Transient Liquid Phase Bonding ◽  
Carbon Composites ◽  
Fiber Reinforced ◽  
Eutectic Liquid ◽  
Axial Pressure ◽  
Fracture Surfaces

2D Fiber Reinforced carbon-carbon composites (C/C) was successfully bonded to itself with Ti-Ni-Ti sandwich interlayer by transient liquid phase bonding at 1050°C for 20~100 min under axial pressure of 0.1 MPa. The microstructures of joints were investigated and bonding strengths were examined, fracture surfaces were characterized by SEM and XRD. The results show that Ti-Ni eutectic liquid infiltrates into the interconnected capillaries of C/C through the open pores of the C/C boding surface. The presents of the breakpoints in joint alloy and the reaction between Ti and C are beneficial to the improvement of bonding strength. The shear strength of joint is as high as 37.4 MPa.

Transient Liquid Phase Bonding of Aluminum Using Aluminum Base Interlayer under Argon Flux

2012 ◽  
Vol 217-219 ◽  
pp. 1917-1920
Author(s):  
Xin Geng Li ◽  
Xue Gang Wang ◽  
Feng Jie Yan ◽  
Hong Wang ◽  
Xiao Ming Wang
Keyword(s):  
Mechanical Properties ◽  
Liquid Phase ◽  
Pure Aluminum ◽  
Transient Liquid Phase ◽  
Bending Test ◽  
Transient Liquid Phase Bonding ◽  
Silicon Oxides ◽  
Bonding Zone ◽  
Aluminum Base ◽  
Ductile Aluminum

An aluminum base interlayer was used for transient liquid phase bonding of pure aluminum under argon flux. The bonding was carried out at 595°C for 2 minutes under 7MPa. Microstructure of the joint was studied with SEM and EDX, and the mechanical properties were analyzed by tensile test and bending test. A homogenous bonding zone is observed in the joint. The defects in the joint are silicon oxides and voids. The tensile strength of the joint is 190MPa, and no failure occurs when the joint is bent to 180°. This indicates that TLP bonding can produce a strong and ductile Aluminum joint, which is equivalent to the base metal.

Grain refinement of transient liquid phase bonding zone using ODS insert foil

2013 ◽  
Vol 442 (1-3) ◽  
pp. S567-S571 ◽  
Author(s):  
Hiroyuki Noto ◽  
Ryuta Kasada ◽  
Akihiko Kimura ◽  
Shigeharu Ukai
Keyword(s):  
Liquid Phase ◽  
Grain Refinement ◽  
Transient Liquid Phase ◽  
Transient Liquid Phase Bonding ◽  
Bonding Zone
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