Defect-solute interactions near irradiation grain boundaries [report]

E.P. Simonen, J.S. Vetrano, H.L. Heinisch, S.M. Bruemmer
1993 unpublished
Defect-solute interactions control radiation-inducedsegregation (RIS) to interracial sinks, such as grain boundaries, in metallic materials. The best studied system in this regard has been austenitic stainless steels. Measurements of grain boundary composition indicate that RIS of major alloying elements are in reasonable agreement with inverse-Kirkendall predictions. The steep and narrow composition profiles are shown to result from limited back diffusion near the boundary. Subsequenlly,
more » ... Subsequenlly, defect-solute interactions that affect the near boundary defect concentrations strongly affect RIS. The variability ill measured RIS may ill part be caused by grain i_oundary characteristics.
doi:10.2172/10120448 fatcat:mec6y4eh6bal7ovpi7imsjluyq