On the swelling resistance of ferritic steel

• DOI: 10.1098/rspa.1980.0131
• Publication Date: 2006-12-15T18:45:26Z
• Authors: E.A. Little; Ronald Bullough; M. H. Wood
• Keywords: Void (composites); Burgers vector

Transmission electron microscopy has been used to study the microstructural features associated with void swelling resistance in FV448 martensitic stainless steel after fast reactor irradiation damage levels of 30 dpa at temperatures range 380-460 °C. A characteristic feature microstructures is presence domains which high pre-irradiation network dislocation density eliminated, and replaced by a homogeneous population interstitial loops ⟨100⟩ Burgers vectors. These grow but remain interspersed within martensitic-type matrix that still retains densities. It suggested observed evolution structure such b.c.c. materials due relative rates nucleation growth two loop types, 1/2 ⟨111⟩