DEVELOPMENT AND EVALUATION OF HIGH-TEMPERATURE TUNGSTEN ALLOYS. Quarterly Report No. 1, October 1, 1959-December 31, 1959

Technical Report · Wed Jan 20 04:00:00 EST 1960

OSTI ID:4729172

Holtz, F C; Van Thyne, R J

High-W alloys were prepared by powder metallurgy techniques. Room- temperature strength properties were determined for W--Ni--Fe compositions with quaternary additions of Cr, Pd, and Ru; at W levels of 80 to 94 wt%. Small (1 to 3 wt%) Ru additions were the most effective in improving strength. The oxidation resistance of a number of W-base alloys was measured at 2000 deg F. Quaternary W- Ni--Fe base alloys containing Al, Ru, Ti, and Zr were the most oxidation resistant, having values similar to unalloyed W. Oxidation protection of a 90W-- 6Ni --4Fe material was accomplished by a fused coating of AMS 4775; the composite was tested for 482 hr in air at 2000 deg F without damage to the base alloy. (auth)

• Research Organization: Illinois Inst. of Tech., Chicago. Armour Research Foundation
• NSA Number: NSA-17-014724
• OSTI ID: 4729172
• Report Number(s): ARF-2158-15; LAR-21
• Country of Publication: United States
• Language: English

Related Subjects

AIR
ALLOYS
ALUMINUM
CHROMIUM
COATING
CORROSION PROTECTION
HEAT RESISTING METALS
HIGH TEMPERATURE
IRON ALLOYS
MATERIALS TESTING
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL ALLOYS
OXIDATION
PALLADIUM
POWDER METALLURGY
PREPARATION
RUTHENIUM
STABILITY
TEMPERATURE
TENSILE PROPERTIES
TITANIUM
TRACE AMOUNTS
TUNGSTEN ALLOYS
ZIRCONIUM