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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 weight percent boron carbide and the remainder a metal mixture comprising from 70 to 90 percent 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 to 14 g/cc. The precursor is preferably hot pressed to yield a composition having greater than 100% of theoretical density.

Inventors:
 [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
866062
Patent Number(s):
4626281
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
hard; metal; composition; matter; rockwell; hardness; 85; formed; precursor; mixture; comprising; 10; weight; percent; boron; carbide; remainder; 70; 90; tungsten; molybdenum; nickel; iron; relatively; density; 14; cc; preferably; hot; pressed; yield; 100; theoretical; precursor mixture; hot pressed; theoretical density; boron carbide; weight percent; mixture comprising; metal composition; comprising nickel; metal mix; hard metal; hot press; percent boron; /75/

Citation Formats

Sheinberg, Haskell. Hard metal composition. United States: N. p., 1986. Web.
Sheinberg, Haskell. Hard metal composition. United States.
Sheinberg, Haskell. Wed . "Hard metal composition". United States. https://www.osti.gov/servlets/purl/866062.
@article{osti_866062,
title = {Hard metal composition},
author = {Sheinberg, Haskell},
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 weight percent boron carbide and the remainder a metal mixture comprising from 70 to 90 percent 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 to 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 = {1986},
month = {1}
}

Patent:

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