Relationship between composition, structure, properties, thermo mechanical processing, and ballistic performance of tungsten heavy alloys. Final report, Mar 86-Jul 91

Technical Report · Fri Nov 01 04:00:00 EST 1991

OSTI ID:5576846

Spencer, J R; Mullendore, J A

Traditional tungsten heavy alloys are tungsten--nickel--iron or tungsten--nickel--copper alloys containing 88 to 98% tungsten. Cobalt is also used in these alloys but to a lesser extent. These alloys are produced by blending the elemental powders, pressing billets from the blend and then liquid-phase sintering the billets. These alloys were first developed to provide high density materials that were easy to machine but were developed with little concern for mechanical properties. Initially W-Ni-Cu alloys were most common because the low melting point of copper made these alloys easier to sinter. As the demand for alloys with good mechanical properties increased, a shift occurred from the W-Ni-Cu alloys to the W-Ni-Fe alloys. Processing techniques to consistently produce high quality tungsten heavy alloys were developed. The purpose of this program was to do a thorough study of tungsten heavy alloys and the interrelationship between chemical composition, impurities, thermo-mechanical processing history, structure and ballistic properties. Ballistic testing was to include a wide range of types and sizes ranging from an in house 20mm range to full scale testing.

• Research Organization: GTE Products Corp., Towanda, PA (United States). Chemical and Metallurgical Div.
• OSTI ID: 5576846
• Report Number(s): AD-A-245649/9/XAB; CNN: DAAL04-86-C-0023
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOY SYSTEMS
ALLOYS
CHEMICAL COMPOSITION
COBALT
COPPER
COPPER ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
FABRICATION
HEAT TREATMENTS
IMPACT TESTS
IMPURITIES
IRON ALLOYS
MATERIALS TESTING
MATERIALS WORKING
MECHANICAL PROPERTIES
MECHANICAL TESTS
MELTING POINTS
METALLURGY
METALS
MICROSTRUCTURE
NICKEL ALLOYS
PHYSICAL PROPERTIES
POWDER METALLURGY
PROCESSING
QUATERNARY ALLOY SYSTEMS
SINTERING
TERNARY ALLOY SYSTEMS
TESTING
THERMODYNAMIC PROPERTIES
THERMOMECHANICAL TREATMENTS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
TUNGSTEN ALLOYS
TUNGSTEN BASE ALLOYS
VELOCITY