Accession Number:

ADA052669

Title:

Reinforced Cobalt Alloy Composite for Turbine Blade Application.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND WATERVLIET NY BENET WEAPONS LAB

Personal Author(s):

• Ahmad,I.
• Barranco,J. M.

Report Date:

1977-07-01

Pagination or Media Count:

16.0

Abstract:

A composite of 0.42 VfW-2 ThO2 filament reinforced cobalt base alloy has been developed. It can be fabricated by convential investment casting process, has a 1093 C 2000 F, 100 hr. stress-to-rupture of 206 MNsq M 30Ksi, and a charpy impact strength of 280.0 in-lb at 835 C as compared with 20.6 in-lb for the unreinforced alloy. Also the feasibility of casting a prototype first stage blade of JT9D engine has been demonstrated. Author

Descriptors:

• *GAS TURBINE BLADES
• *SUPERALLOYS
• *CASTING ALLOYS
• *COBALT ALLOYS
• MECHANICAL PROPERTIES
• HIGH TEMPERATURE
• FIBER REINFORCED COMPOSITES
• PROTOTYPES
• IMPACT STRENGTH
• TUNGSTEN
• INVESTMENT CASTING
• METAL FIBERS
• THORIUM DIOXIDE

Subject Categories:

• Laminates and Composite Materials
• Metallurgy and Metallography
• Fabrication Metallurgy
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE