ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
October 2025
Nuclear Technology
September 2025
Fusion Science and Technology
Latest News
NNSA awards BWXT $1.5B defense fuels contract
The Department of Energy’s National Nuclear Security Administration has awarded BWX Technologies a contract valued at $1.5 billion to build a Domestic Uranium Enrichment Centrifuge Experiment (DUECE) pilot plant in Tennessee in support of the administration’s efforts to build out a domestic supply of unobligated enriched uranium for defense-related nuclear fuel.
G. S. Hanks, R. S. Kirby, J. M. Taub
Nuclear Science and Engineering | Volume 14 | Number 2 | October 1962 | Pages 135-143
Technical Paper | doi.org/10.13182/NSE62-A28112
Articles are hosted by Taylor and Francis Online.
An impact extrusion procedure was developed to fabricate a tantalum container approximately 9 in. long, 0.375 in. i.d., 20 to 30 mils in wall thickness, and closed at one end. A solid slug was given five impact steps to form a thick-walled cup. The cup was ironed through six stages to the final shape. The material used initially was powder metallurgy tantalum; high purity, electron-beam melted tantalum and tantalum containing 0.1 wt. % tungsten was used in later work. Aluminum bronze dies and a cold beeswax lubricant were used to prevent galling between the tools and the tantalum. Thirty to forty tons were required to form the metal in the impact extrusion steps. Draw force needed in the ironing operation ranged from 600 lb to 3600 lb. The Ta + 0.1 wt. % tungsten alloy consistently required greater impact extrusion and draw pressures than were required by the high purity metal. The investigation showed that heat treating procedures had a considerable effect on the surface finish by controlling the grain size in the metal. In general, tantalum was found to form satisfactorily in both the impact extrusion and ironing procedures.