A promising approach to increasing fracture toughness and decreasing the DBTT of a W-alloy is by ductile-phase toughening (DPT) [1-3]. In this method, a ductile phase is included in a brittle matrix to prevent fracture propagation by crack bridging. W-Ni-Fe alloys consisting of nearly spherical W-particles embedded within a Fe-Ni-W ductile matrix are being manipulated by hot-rolling to create lamellar W/Fe-Ni-W composites with anisotropic fracture properties.
Revised: September 28, 2016 |
Published: March 2, 2015
Citation
Henager C.H., R.J. Kurtz, T.J. Roosendaal, B.A. Borlaug, E.A. Nyberg, C.A. Lavender, and G. Odette, et al. 2015.RECENT PROGRESS IN THE DEVELOPMENT OF DUCTILE-PHASE TOUGHENED TUNGSTEN FOR PLASMA-FACING MATERIALS: W-Ni-Fe COMPOSITES. In Fusion Materials Semiannual Progress Report for the Period Ending December 31, 2014, edited by PJ Pappano. 93-96. DOE-ER-0313/57. Oak Ridge, Tennessee:Oak Ridge National Laboratory.PNNL-SA-107716.