Impact of surface enrichment and morphology on sputtering of EUROFER by deuterium

The sputtering behavior of EUROFER is of interest for future fusion reactors, as it is considered a candidate plasma-facing material for recessed areas of the first wall. Of particular interest are the formation of a W-enriched surface layer and the development of a heterogeneous surface morphology. In this work, the impact of these two phenomena on the sputter yield of EUROFER are compared to the measured sputter yield by mass-loss.