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Hard metal composition

Patent ·
OSTI ID:6924061

A composition of matter having a Rockwell A hardness of at least 85 is formed from a precursor mixture comprising between 3 and 10 wt % boron carbide and the remainder a metal mixture comprising from 70 to 90% tungsten or molybdenum, with the remainder of the metal mixture comprising nickel and iron or a mixture thereof. The composition has a relatively low density of between 7 and 14 g/cc. The precursor is preferably hot pressed to yield a composition having greater than 100% of theoretical density.

DOE Contract Number:
W-7405-ENG-36
Assignee:
Dept. of Energy
Patent Number(s):
None
Application Number:
ON: DE84011034
OSTI ID:
6924061
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360200* -- Ceramics
Cermets
& Refractories
ALLOYS
BINDERS
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHEMICAL COMPOSITION
CUTTING TOOLS
IRON ALLOYS
MACHINE TOOLS
MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
TOOLS
TUNGSTEN ALLOYS