Accession Number : AD0474605

Title :   DEVELOPMENT OF BERYLLIUM SHEET WITH HIGH YIELD STRENGTH AND DUCTILITY.

Descriptive Note : Technical summary rept. 1 May 65-31 Jan 65,

Corporate Author : ATOMIC WEAPONS RESEARCH ESTABLISHMENT ALDERMASTON (UNITED KINGDOM)

Personal Author(s) : Evans, R. E. ; Lowe, J. N.

Report Date : SEP 1965

Pagination or Media Count : 15

Abstract : The possibilities of extensive alloying to improve the cast and rolled Be sheet properties are limited (>45 ksi, 0.1 Y. S. is desired), but there is an appreciable solid solubility of Cu in Be. Therefore, the fabrication characteristics and mechanical properties of the 0.5 - 5.0 wt % Cu-Be alloy sheet were investigated. It was found impossible to fabricate the 5% Cu material using established techniques for unalloyed metal. The more dilute 0.5 and 2.5 wt % Cu alloys showed significant improvement over the room temperature mechanical properties of unalloyed metal. (Author)

Descriptors :   *SHEETS), (*BERYLLIUM ALLOYS, (*COPPER ALLOYS, BERYLLIUM ALLOYS), BERYLLIUM, SOLID SOLUTIONS, MECHANICAL PROPERTIES, DUCTILITY, GRAIN SIZE, HEAT TREATMENT, ROLLING(METALLURGY), CASTING, HARDENING, PROCESSING, HIGH TEMPERATURE.

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE