STRUCTURAL RESPONSE OF BERYLLIUM SHEET PRODUCED BY THREE FABRICATION METHODS. Final Report, February 1960 to March 1961

Technical Report · Thu Jun 01 04:00:00 EDT 1961

OSTI ID:4790670

Giemza, C J

Hot-pressed, hot-upset and hot cross-rolled beryllium sheet was examined to assess their differences and advantsgesfrom a structural design viewpoint. Tension, notch tension, compression, bend ductility, and box-beam tests, with the main emphasis on factors which tend to embrittle beryllium, were conducted. The results showed that a hot cross-rolled beryllium sheet exhibits both high strength and high elongation in tensile tests but is relatively brittle when, as in bending, the stress is complex. Hot-pressed beryllium sheet, which is low in tensile strength and elongation, demonstrates an-excellent capacity for accommcdating complex stresses in bending without fracture. The hot-upset beryl lium sheet exhibited the best characteristics possessed by both hot-pressed and hot cross-rolled beryllium, though to a lesser degree than the optimum of each. The differences in mechanical behavior among the three groups are apparently a function of the degree of prererred orientation. However, the amounts of impurity elements which were reported could have contributed significantly to the embrittlement of the hot-pressed and hot cross-rolled beryllium sheet. The data are preaented as trend curves and, when appropriate, in tabular form. (auth)

• Research Organization: Martin Co., Baltimore
• NSA Number: NSA-16-016714
• OSTI ID: 4790670
• Report Number(s): ASD-TR-61-87
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
BEAMS
BERYLLIUM
BRITTLENESS
CERIUM BORIDES
CONFIGURATION
DIAGRAMS
EFFICIENCY
ELECTRONS
ENERGY
FABRICATION
HOT WORKING
IMPURITIES
LANTHANUM BORIDES
MATERIALS TESTING
METALS, CERAMICS, AND OTHER MATERIALS
PLANNING
PRESSURE
REFLECTION
REFRACTION
ROLLING
SHEETS
SPECTRA
STRESSES
SUPERCONDUCTIVITY
TABLES
TENSILE PROPERTIES