In pulsed Nd:YAG laser welding process, the material melts and solidifies consecutively by a peak high power laser beam. The solidification time in this process is very less as compared to that of conventional welding process. The mode of welding process is governed by the process parameters like laser energy, pulse duration, pulse frequency, power and welding speed. This paper aimed at to exam...

Friction welding or electron/laser beam of nickel superalloys compromises the microstructure with localized melting and heat-affected zones (HAZ). In this work, Field-Assisted Sintering Technology (FAST) is studied as an alternative method for solid-state diffusion bonding CM247LC Inconel 718. Bonding microstructures room-temperature tensile strengths are evaluated. Preliminary results suggest ...

Abstract Super-alloy GH4169 and related welded structures were widely used in the aero-engine industry region. Vacuum electron beam welding is one of most advanced technologies, influence mechanical property caused by technology still needs further research. Firstly, hardness, microstructure, tensile properties joint tested. After two-stage aging treatment, weld zone was strengthened its hardne...