Abstract Brazing is a joining technique used in many industries for components that consist of individual parts. Many these are cyclically loaded during service. For this reason, reliable approaches to assess the service life must be developed. purpose, it necessary gain knowledge about factors influencing fatigue strength and damage behavior. In paper induction, vacuum- continuous furnace braz...

Microstructures and hardness of Mo heater chips brazed with Au–18mass%Ni were investigated. The reaction layer of Mo–Ni compounds forms at the brazed interface. Spherical MoNi compounds form initially, and they change columnar ones with increasing brazing time. The reaction layer grows abruptly when the brazing time is more than 5 minutes with the brazing temperature range from 930 C to 970 C. ...

The vacuum brazing of dissimilar Al 7075 and Al–25 Si alloy was investigated. filler copper foil with a thickness 20 μm, the temperature 560 °C held for 10 min. average shear strength brazed joint 26.4 MPa. layer found to be dissolved completely, interface had an irregular shape serrated border, indicating good metallurgical bonding between two alloys. However, factors which might cause deterio...

In this study, the optimal parameters of vacuum brazing titanium alloy Ti-6Al-4V with TiCuNi filler (30 μm-thick metal foil) were investigated by Taguchi method. The microstructures, microhardness, and fractographs brazed joints produced these also analyzed. results study demonstrate that for best tensile strength, combination process is: 890 °C soaking temperature, 60 min time, 975 45 time. st...

Three geometrically similar offset rectangular platefin surfaces with area densities in the range from goo to 2000 ft 2/ft3 were tested to establish the heat transfer., j-NR~ and flow friction, f-NR, characteristics. The Reynolds number range was from 60 to 3000. One surface was unbrazed while the other two, because of a two-to-one difference in plate, fin and offset spacing dimensions~ were ch...