Preferentially binder enriched cemented carbide bodies and method of manufacture

Patent · Tue Sep 09 04:00:00 EDT 1986

OSTI ID:5163705

Nemeth, B J; Grab, G P

A cemented carbide body is described formed by sintering a substantially homogeneous mixture of constituents comprising at least 70 weight percent tungsten carbide; a metallic binder; a metal carbide selected from the group consisting of the Group IVB and VB transition metal carbides; the metal carbide being present in an amount less than the amount of tungsten carbide. The body has substantially A to B type porosity throughout the body; the metal carbide combined with the tungsten carbide forming a solid solution carbide; a layer of at least partially solid solution carbide depleted material near a peripheral surface of the body.

• Assignee: Kennametal, Inc., Latrobe, PA
• Patent Number(s): US 4610931
• OSTI ID: 5163705
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
BINDERS
CARBIDES
CARBON COMPOUNDS
CEMENTING
CHEMICAL PREPARATION
DISPERSIONS
FABRICATION
LAYERS
MIXTURES
POROSITY
QUANTITY RATIO
REFRACTORY METAL COMPOUNDS
SINTERING
SOLID SOLUTIONS
SOLUTIONS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS