FABRICATION OF BERYLLIUM WIRE. Progress Report No. 4 for April 16 to July 1, 1959. Technical Report No. 155

Technical Report · Mon Oct 31 04:00:00 EST 1960

OSTI ID:4165819

Gross, Jr, A G; O'Rourke, R G; Beaver, W W

Operational drawing parameters were established for 12.5 deg tungsten carbide dies, using molybdenum disulfide with an epoxy resin binder for lubrication. Beryllium wire of 0.063-inch diameter was drawn successfully with this technique. X-ray-diffraction studies indicated that perfect texture will not result from any real values of drawing reduction regardless of annealing practice. These studies indicated that the operative slip systems are basal and the average fiber sxis is STA210!. Annealing practices were investigated, and two feasible cycles were found. A- temperature of 1290 deg F for 60 minutes with an air cool may be used for a reasonably efficient stress relief without recrystallization. A temperature of 1480 deg F for 30 minutes with heat shield followed by air cooling may be used to completely stress relieve with recrystallization. Heating rate appears to be a critical parameter in this practice. The 1480 deg F tomperature is preferred from the standpoint of uniformity of annealed tensile properties. The production of draw stook by swaging powder, sintering, and warm awaging the sintered rod was probed and promising results were obtained. (auth)

• Research Organization: Brush Beryllium Co., Cleveland
• NSA Number: NSA-14-015948
• OSTI ID: 4165819
• Report Number(s): AD-227967
• Country of Publication: United States
• Language: English

Related Subjects

AIR
ANNEALING
BERYLLIUM
CEMENTS
CONTROL
COOLING
DEFORMATION
DIES
DIFFRACTION
DRAWING
DUCTILITY
FABRICATION
FIBERS
HIGH TEMPERATURE
HYDROGEN PEROXIDES
LUBRICATION
MACHINING
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM SULFIDES
POLYMERS
POWDERS
QUANTITATIVE ANALYSIS
RECRYSTALLIZATION
RESINS
RODS
SINTERING
SLIP
SPECTROSCOPY
STRESSES
TENSILE PROPERTIES
TUNGSTEN CARBIDES
ULTRAVIOLET RADIATION
USES
WATER COOLANT
WIRES
X RADIATION