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Title: Method for producing hard-surfaced tools and machine components

Abstract

In one aspect, the invention comprises a method for producing tools and machine components having superhard crystalline-ceramic work surfaces. Broadly, the method comprises two steps: A tool or machine component having a ceramic near-surface region is mounted in ion-implantation apparatus. The region then is implanted with metal ions to form, in the region, a metastable alloy of the ions and said ceramic. The region containing the alloy is characterized by a significant increase in hardness properties, such as microhardness, fracture-toughness, and/or scratch-resistance. The resulting improved article has good thermal stability at temperatures characteristic of typical tool and machine-component uses. The method is relatively simple and reproducible.

Inventors:
 [1]
  1. (Farragut, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
865533
Patent Number(s):
4532149
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; producing; hard-surfaced; tools; machine; components; aspect; comprises; superhard; crystalline-ceramic; surfaces; broadly; steps; tool; component; ceramic; near-surface; region; mounted; ion-implantation; apparatus; implanted; metal; form; metastable; alloy; containing; characterized; significant; increase; hardness; properties; microhardness; fracture-toughness; scratch-resistance; resulting; improved; article; thermal; stability; temperatures; characteristic; typical; machine-component; relatively; simple; reproducible; region containing; significant increase; thermal stability; surface region; method comprises; method comprise; near-surface region; relatively simple; metastable alloy; producing hard; machine components; ion-implantation apparatus; /427/428/

Citation Formats

McHargue, Carl J. Method for producing hard-surfaced tools and machine components. United States: N. p., 1985. Web.
McHargue, Carl J. Method for producing hard-surfaced tools and machine components. United States.
McHargue, Carl J. Tue . "Method for producing hard-surfaced tools and machine components". United States. https://www.osti.gov/servlets/purl/865533.
@article{osti_865533,
title = {Method for producing hard-surfaced tools and machine components},
author = {McHargue, Carl J.},
abstractNote = {In one aspect, the invention comprises a method for producing tools and machine components having superhard crystalline-ceramic work surfaces. Broadly, the method comprises two steps: A tool or machine component having a ceramic near-surface region is mounted in ion-implantation apparatus. The region then is implanted with metal ions to form, in the region, a metastable alloy of the ions and said ceramic. The region containing the alloy is characterized by a significant increase in hardness properties, such as microhardness, fracture-toughness, and/or scratch-resistance. The resulting improved article has good thermal stability at temperatures characteristic of typical tool and machine-component uses. The method is relatively simple and reproducible.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

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