Stress-Rupture Properties of Irradiated and Unirradiated Hastelloy N Tubes

H. E. McCoy, Jr.; J. R. Weir, Jr.

doi:dx.doi.org/10.13182/NT68-A26335

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Home / Publications / Journals / Nuclear Technology / Volume 4 / Number 2

Stress-Rupture Properties of Irradiated and Unirradiated Hastelloy N Tubes

H. E. McCoy, Jr., J. R. Weir, Jr.

Nuclear Technology / Volume 4 / Number 2 / February 1968 / Pages 96-104

Technical Paper and Note / dx.doi.org/10.13182/NT68-A26335

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The stress-rupture properties of two heats of Hastelloy N tubing have been determined at 760°C in the irradiated and unirradiated conditions. Irradiation reduced the rupture life and the rupture strain but produced no detectable effects on the creep rate. The effects of irradiation are rationalized on the basis of the behavior of helium which is formed in the metal as a result of the ¹⁰B(n,α)⁷ Li reaction with thermal neutrons.