Irradiation behavior of nanostructured 316 austenitic stainless steel
作者： B. Radiguet , A. Etienne , P. Pareige , X. Sauvage , R. Valiev
DOI: 10.1007/S10853-008-2875-8
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摘要: In order to get information about radiation resistance of ultrafine grained austenitic stainless steels, a 316 steel was deformed by high pressure torsion. The mean diameter the grain after deformation 40 nm. This material annealed at 350 °C for 24 h or irradiated with 160 keV iron ions °C. Changes in microstructure during annealing irradiation were characterised transmission electron microscopy (grain size) and laser assisted tomographic atom probe (solute distribution). Results indicate that this has no influence on size whereas increases under irradiation. Concerning solute distribution, investigations show evidence radiation-induced segregation boundaries. Indeed, irradiation, boundaries are enriched nickel silicon depleted chromium. On contrary, intragranular extended defects precipitation observed
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