DEVELOPMENT AND EVALUATION OF HIGH-TEMPERATURE TUNGSTEN ALLOYS. Quarterly Report No. 3, Apr. 1, 1960-June 30, 1960

Technical Report · Wed Aug 10 00:00:00 EDT 1960

OSTI ID:4756916

Holtz, F C; Van Thyne, R J

High-tungsten alloys were prepared by powder metallurgy techniques. Excellent strength and ductility at room temperature were found in the W --Ni -- Mo --Ru system and in W--Ni --Fe alloys containing platinum and/or ruthenium. The effects of prolonged annealing at 1600 deg F on roomtemperature properties were studied; W --Ni -- Fe --R --Ru alloys were least affected by this treatment. Oxidation rates for most alloys at 2000 deg F were 2 to 4 times that of unalloyed tungsten; an exception was a W--Ni --Mo --Ru alloy which oxidized at 1/5 the rate of tungsten. Slip casting techniques and induction-sintering of loosely compacted powders were used to produce compacts of W --Ni -Fe materials having section thicknesses of 1 to 2 inches. (auth)

• Research Organization: Illinois Inst. of Tech., Chicago. Armour Research Foundation
• DOE Contract Number: AT(33-3)-4
• NSA Number: NSA-17-014807
• OSTI ID: 4756916
• Report Number(s): ARF-2158-21; LAR-45
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-63
• Country of Publication: United States
• Language: English

Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
ALLOYS
ANNEALING
CASTING
COMPACTING
DEFECTS
DUCTILITY
HEAT RESISTING METALS
HIGH TEMPERATURE
INDUCTION
IRON ALLOYS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
OXIDATION
PHASE DIAGRAMS
PLATINUM ALLOYS
POWDER METALLURGY
PREPARATION
RUTHENIUM ALLOYS
SINTERING
SLIP
TEMPERATURE
TENSILE PROPERTIES
THICKNESS
TUNGSTEN ALLOYS