|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Nanostructured Materials for Nuclear Applications
||Microstructure and Mechanical Properties of High Dose Self-ion Irradiated Nanostructured Ferritic Alloys
||Eda Aydogan, O. Anderoglu, S.A. Maloy, L. Shao, J. Gigax, L. Price, D. Chen, X. Wang, G. Robert Odette, D.T. Hoelzer, J.J. Lewandowski, I.E. Anderson, J.R. Rieken
|On-Site Speaker (Planned)
Nanostructured ferritic alloys have excellent elevated temperature strength, creep resistance, and radiation tolerance thanks to a high density of Ti–Y–O-enriched nanofeatures having the size of 2-4 nm. In this research, irradiation response of 14YWT alloy produced in tubular form using innovative thermal spray deposition and conventional hot extrusion processing methods has been investigated. The tubes produced by two different methods were irradiated with 3.5 MeV Fe2+ up to 1100 dpa at 450˚C. Hot extruded 14YWT tube exhibits very low void swelling compared to the tube produced by thermal spray deposition. Moreover, the thermal spray deposition produced tube shows nonuniform void swelling. Detailed investigation of the effect of irradiation on the microstructure using atom probe tomography and high resolution transmission electron microscopy techniques indicates that size and distribution of nanofeatures are responsible for the differences in swelling of the two tubes. Besides, mechanical properties were evaluated using nanoindentation techniques.
||Planned: A print-only volume