Impact of pulsed deuterium plasma irradiation on dual-phase tungsten alloys

Abstract The morphological and structural changes of two different dual-phase tungsten alloy (either 3% or 5% of an added mixture of Fe and Ni) are investigated after deuterium plasma irradiation. Heat flux factor of deuterium plasma pulses is comparable to transient events in ITER. This study compares the changes in tungsten alloy materials between two different regimes with a different number of plasma pulses. Fe and Ni as a binder play an essential role in absorbing plasma shocks to decrease the morphological and structural changes. These results are compared to changes of pure single and double forged tungsten irradiated in similar conditions.