Surface modification and sputtering erosion of reduced activation ferritic martensitic steel F82H exposed to low-energy, high flux deuterium plasma

Targets prepared from Reduced Activation Ferritic Martensitic (RAFM) steel F82H were exposed to low-energy (200 eV) deuterium (D) plasma at various temperatures with highfluxes of about 10(22) D/m(2) s to various fluences in the range from 10(25) to 2.5 x 10(26) D/m(2). Under the plasma exposure, micro-structured layers are formed on the target surfaces, and the surface morphology is dependent on the exposure temperature. The erosion yield of the F82H samples increases by a factor of about two as the exposure temperature rises in the range from 403 to 773 K. (C) 2016 The Authors. Published by Elsevier Ltd.