Research Papers

Irradiation of Haynes-25 and Inconel-X Compression Springs in High-Temperature High-Pressure Water

[+] Author and Article Information
R. L. Mehan

Knolls Atomic Power Laboratory, General Electric Company, Schenectady, N. Y.

J. Basic Eng 81(2), 226-232 (Jun 01, 1959) (7 pages) doi:10.1115/1.4008425 History: Received August 04, 1958; Published June 01, 1959; Online February 20, 2019


Irradiation tests were performed on Haynes Stellite Alloy 25 and Inconel-X springs irradiated in the compressed condition in an in-pile high-temperature water loop. The loop was operated at 560 to 600 F and the springs of both materials received integrated fluxes of 5.9 × 1018 and 4.2 × 1019 nvt fast, respectively. Postirradiation testing and examination revealed no serious deleterious effects resulting from these exposures. It was found the spring constant increased 5 to 8 per cent after exposure and the free length decreased 2 to 3 per cent. The effect of irradiation on the plastic-flow curve was slight as revealed by three-point loaded bend tests on 0.160-in-diam rods irradiated with the springs.

Copyright © 1959 by ASME
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