Accession Number : AD0786733

Title :   Irradiation Effects on Reactor Structural Materials.

Descriptive Note : Semi-annual progress rept. 1 Feb-31 Jul 74,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Steele,Lendell E.

Report Date : AUG 1974

Pagination or Media Count : 72

Abstract : The research program of the NRL Metallurgy Division, Reactor Materials Branch, involves a broad study of the effects of nuclear radiation upon materials. The report includes: (1) status and recent observations of AEC-CE-NRL cooperative program on improved (radiation resistant) A533-B steel plates and weldments; (2) strength and notch ductility of selected structural alloys after high fluence, 550F irradiation; (3) toughness of irradiated Type 316 weld metal using the J-Integral, (4) microstructure and swelling of EBR-II control rod thimble material; (5) the dose dependence of nickel ion damage in nickel; (6) studies of the mobility of helium in 316 stainless steel and aluminum, and (7) evaluation of tensile specimens from surveillance capsules of MH-1A reactor. (Modified author abstract)

Descriptors :   *Reactor materials, *Radiation effects, Steel, Welds, Nickel, Stainless steel, Aluminum, Helium, Fatigue(Mechanics), Crack propagation, Notch toughness, Fracture(Mechanics), Ion bombardment, Electron microscopy

Subject Categories : Metallurgy and Metallography
      Fission Reactor Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE