DEVELOPMENT AND EVALUATION OF HIGH-TEMPERATURE TUNGSTEN ALLOYS. Quarterly Report No. 2, January 1, 1960-March 31, 1960

Technical Report · Fri Jun 24 04:00:00 EDT 1960

OSTI ID:4749274

Holtz, F C; Van Thyne, R J

S>Room -temperature properties were determined for WNi --Fe -Ru base alloys containing Cr, Mo, Pd, and Ta; highest strength levels were found in W-Ni- Fe -Ru -Mo compositions. Annealing for 250 hours at 1600 deg F produced a precipitate in the matrix phase and increased hardness in some of the tungsten- base alloys under study. Oxidation tests at temperatures up to 2000 deg F showed that additions of Al, Cr, Mo, Pd, and Ti improved the oxidation resistance of the W--Ni--Fe base. A fused coating of AMS 4775 protected a 90W-6Ni-4Fe alloy for 72 hours in air at 2100 deg F. (auth)

• Research Organization: Illinois Inst. of Tech., Chicago. Armour Research Foundation
• NSA Number: NSA-17-014806
• OSTI ID: 4749274
• Report Number(s): ARF-2158-18; LAR-44
• Country of Publication: United States
• Language: English

Related Subjects

AIR
ALLOYS
ALUMINUM ALLOYS
ANNEALING
CHROMIUM ALLOYS
COATING
CORROSION PROTECTION
HARDNESS
HEAT RESISTING METALS
HIGH TEMPERATURE
IRON ALLOYS
MATERIALS TESTING
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
OXIDATION
PHASE DIAGRAMS
PRECIPITATION
RUTHENIUM ALLOYS
TANTALUM ALLOYS
TEMPERATURE
TENSILE PROPERTIES
TITANIUM ALLOYS
TUNGSTEN ALLOYS