High Temperature Mechanical Properties of Pure and Alloyed Group 5 Metals in View of Their Application as Tritium Permeation Materials
Fusion Science and Technology / Volume 60 / Number 4 / November 2011 / Pages 1580-1583
Interaction with Materials / Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) / dx.doi.org/10.13182/FST11-A12736
Articles are hosted by Taylor and Francis Online.
ANS Members, if you subscribe to Fusion Science and Technology, please log in before accessing the article.
Tensile and creep strength of pure V, Nb, Ta, and Nb-9W alloy were examined at 600 °C to assess their applicability as hydrogen permeation material for the recovery of tritium from the high temperature liquid breeder blanket of a fusion reactor. The Nb-9W alloy required a comparatively higher annealing temperature to achieve good ductility. Based on tensile strength results, it is estimated that a permeation wall thickness of 0.1 mm is achievable. According to creep rate of Nb-9W alloy, design stress maybe decreased below 1/3 of yield stress.
