Accession Number:

AD0753340

Title:

Development of Superalloy Matrix-Refractory Metal Fiber Composites by Coextrusion of Blended Powders

Descriptive Note:

Technical rept.

Corporate Author:

WHITTAKER CORP WEST CONCORD MA NUCLEAR METALS DIV

Personal Author(s):

• Greenspan, Jacob
• Rizzitano, F. J.

Report Date:

1972-09-01

Pagination or Media Count:

22.0

Abstract:

Fibers of molybdenum, TZM molybdenum, and tungsten were incorporated within a matrix of four different superalloys by extruding mixtures of spherical powders. Process feasibility, being a function of the flow characteristics of the coexisting materials, occurred only with certain materials, and at certain extrusion temperature. In these cases, fiber aspect ratios were sufficient, theoretically, to obtain fiber strengthening.

Descriptors:

• *COMPOSITE MATERIALS
• *HEAT RESISTANT ALLOYS
• FIBERS
• EXTRUSION
• CREEP
• TUNGSTEN
• MOLYBDENUM ALLOYS
• COBALT ALLOYS
• POWDER METALS
• NICKEL ALLOYS
• MOLYBDENUM
• MICROSTRUCTURE

Subject Categories:

• Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE