Nickel-base brazing filler metals for aircraft gas turbine application

Journal Article · Sat Oct 01 04:00:00 EDT 1977 · Weld. J. (Miami); (United States)

OSTI ID:6394060

Eng, R D; Ryan, E J; Doyle, J R

Brazed joints of the nickel-base brazing filler metal demonstrated superior ambient temperature shear strength as well as ambient temperature and 482/sup 0/C (900/sup 0/F) fatigue strength when compared to the substantially more expensive gold-base filler metal in laboratory mechanical testing. A similar fatigue strength advantage was observed at these temperatures for aluminide-coated braze joints of filler metal compared to gold base filler metal. On the basis of laboratory testing to simulate the engine environment, both uncoated and aluminide-coated brazed joints of nickel and gold base filler metal-displayed excellent oxidation and salt corrosion resistance. Repair procedures of individual braze joints were established and demonstrated for nickel base brazing filler metal. Acceptable experience in both manufacturing and engine testing has led to incorporation of the cost-effective nickel base brazing filler metal into a production engine model.

• Research Organization: United Technologies Corp., East Hartford, CT
• OSTI ID: 6394060
• Journal Information: Weld. J. (Miami); (United States), Journal Name: Weld. J. (Miami); (United States) Vol. 56:10; ISSN WEJUA
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320201 -- Energy Conservation
Consumption
& Utilization-- Transportation-- Air & Aerospace
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
AIRCRAFT
ALLOYS
ARC WELDING
BORON ALLOYS
BRAZING
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CORROSION
CORROSION RESISTANT ALLOYS
FABRICATION
FILLER METALS
GAS TUNGSTEN-ARC WELDING
GAS TURBINES
GOLD ALLOYS
GOLD BASE ALLOYS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MATERIALS
NICKEL ALLOYS
NICKEL BASE ALLOYS
REPAIR
SILICON ALLOYS
STAINLESS STEEL-410
STAINLESS STEELS
STEELS
TURBINES
TURBOMACHINERY
WELDABILITY
WELDING