Accession Number : AD0677601

Title :   HEAVY SECTION STEEL TOUGHNESS CHARACTERIZATION.

Descriptive Note : Semiannual memorandum progress rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Loss,F. J.

Report Date : 28 AUG 1968

Pagination or Media Count : 24

Abstract : The report presents the initial progress of a research program to investigate the fracture toughness of heavy section steels as influenced by mechanical constraint and through-thickness metallurgical variations. The fracture toughness of the steels studied are defined primarily by means of the Dynamic Tear (DT) test developed by NRL for characterizing a wide variety of commercial steels. The present report describes the initial evaluations of two thicknesses of A-533B reactor grade steels and includes Charpy-V as well as DT results. The 6-3/8-in. thick A-533B Class II material is part of an existing NRL program while the 12-in. thick A-533B Class I material is part of the Atomic Energy Commission's Heavy Section Steel Technology Program. (Author)

Descriptors :   (*STEEL, TOUGHNESS), THICKNESS, PRESSURE VESSELS, FRACTURE(MECHANICS), METAL PLATES

Subject Categories : Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE