A promising approach to increasing fracture toughness and decreasing the DBTT of a W-alloy is by ductile-phase toughening (DPT). In this method, a ductile phase is included in a brittle matrix to prevent crack propagation by bridging. Composite specimens were fabricated by two methods: 1) sintering W powders together with carburized W wires, and 2) hot pressing W and Cu foils together with W wires. These composites were tested in tension and three-point bending.
Revised: September 23, 2016 |
Published: August 29, 2014
Citation
Cunningham K., G. Odette, K.A. Fields, D. Gragg, F.W. Zok, C.H. Henager, and R.J. Kurtz, et al. 2014.RECENT PROGRESS IN THE FABRICATION AND CHARACTERIZATION OF DUCTILE-PHASE-TOUGHENED TUNGSTEN COMPOSITES FOR PLASMA-FACING MATERIALS. In Fusion Reactor Materials Program-Semiannual Progress Report For the Period Ending June 30, 2014. 126-131, DOE/ER-0313/56. Oak Ridge, Tennessee:Oak Ridge National Laboratory.PNNL-SA-104278.