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Title: Hard metal composition

Abstract

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.

Inventors:
Issue Date:
OSTI Identifier:
6924061
Application Number:
ON: DE84011034
Assignee:
Dept. of Energy ERA-09-026415; EDB-84-083734
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BORON CARBIDES; CHEMICAL COMPOSITION; CUTTING TOOLS; MATERIALS; MACHINE TOOLS; MOLYBDENUM ALLOYS; TUNGSTEN ALLOYS; BINDERS; IRON ALLOYS; NICKEL ALLOYS; ALLOYS; BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; TOOLS 360200* -- Ceramics, Cermets, & Refractories

Citation Formats

Sheinberg, H. Hard metal composition. United States: N. p., 1983. Web.
Sheinberg, H. Hard metal composition. United States.
Sheinberg, H. Tue . "Hard metal composition". United States.
@article{osti_6924061,
title = {Hard metal composition},
author = {Sheinberg, H.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {7}
}