For confirming the evaluation of ARAA steel E-beam welding characteristics for the fabrication of KO HCCR TBM, the followings are performed.
E-beam welding in ARAA plate.
Evaluation for the penetration depth and beam width according to the E-beam welding current.
Performed micro-hardness and Charpy impact test after PWHT.
Determine the optimized PWHT condition.