|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Powder Materials for Energy Applications
||Synthesis and Characterization of Lanthana Based ODS Steel for Nuclear Reactor Applications
||Ashwani Kumar, Krishanu Biswas, Sudhanshu Shekhar Singh
|On-Site Speaker (Planned)
Oxide dispersed strengthened (ODS) ferritic steels have emerged as promising material for the core of nuclear reactors due to a good combination of resistance to radiation and high temperature strength. The most commonly used oxide in ODS steels is yttria (Y2O3). Although extensive studies have been carried out with yittria in ODS steels, other rare earth oxides have not been explored.
In the present study, tungsten containing ODS steel (Fe-14Cr-1Ti-xW-0.5L2O3) has been fabricated by mechanical alloying followed by spark plasma sintering. The variation of tungsten (W) content and temperature (1050oC and 1100oC) on the microstructure and mechanical properties of lanthana based ODS steel have also been studied. Microstructural characterization was performed using X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The quantification of mechanical properties using nano-indentation and compression testing indicated that 14LWT ODS steels exhibit equivalent or better mechanical properties than the conventional 14YWT ODS steels.
||Planned: Supplemental Proceedings volume