[en] Samples of polished and oxidized 304 stainless steel, aluminum, and gold have been subjected to bombardment by hydrogen ions in order to simulate effects expected in tokamak fusion devices. This paper reports on the sputtering and chemical effects of bombardment with 100 and 200 eV ions to fluence levels of 2 x 10²¹ ions/cm² and 4 x 10²¹ ions/cm², respectively. Under these conditions gold is badly blistered and eroded, aluminum is slightly blistered at 100 eV and substantially eroded at 200 eV but few changes are seen in the polished stainless steel. The oxide film (produced by a ¹/₂ hr exposure to air at 500⁰C) on the polished sample was, however, removed and only a very thin layer of substoichiometric oxide remained on the surface after exposure to either 100 or 200 eV hydrogen plasmas. Sample temperatures during bombardment were about 50⁰C for the 100 eV ions and 65⁰C for the 200 eV ions