RECENT PROGRESS IN THE FABRICATION AND CHARACTERIZATION OF DUCTILE-PHASE-TOUGHENED TUNGSTEN COMPOSITES FOR PLASMA-FACING MATERIALS

Book · Fri Aug 29 00:00:00 EDT 2014

OSTI ID:1327191

Cunningham, Kevin; Odette, G Robert; Fields, Kirk A.; Gragg, David; Zok, Frank W.; Henager, Charles H.; Kurtz, Richard J.; Roosendaal, Timothy J.; Borlaug, Brennan A.

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.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1327191
• Report Number(s): PNNL-SA-104278; AT2030110
• Resource Relation: Related Information: Fusion Reactor Materials Program-Semiannual Progress Report For the Period Ending June 30, 2014, 56:126-131, DOE/ER-0313/56
• Country of Publication: United States
• Language: English