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Title: Method of fabricating thin-walled articles of tungsten-nickel-iron alloy

Abstract

The present invention relates to a method for fabricating thin-walled high-density structures oftungsten-nickel-iron alloys. A powdered blend of the selected alloy constituents is plasma sprayed onto a mandrel having the desired article configuration. The sprayed deposit is removed from the mandrel and subjected to liquid phase sintering to provide the alloyed structure. The formation of the thin-walled structure by plasma spraying significantly reduces shrinkage, and cracking while increasing physical properties of the structure over that obtainable by employing previously known powder metallurgical procedures.

Inventors:
 [1];  [2]
  1. (Kingston, TN)
  2. (Oak Ridge, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
864223
Patent Number(s):
4332617
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; fabricating; thin-walled; articles; tungsten-nickel-iron; alloy; relates; high-density; structures; oftungsten-nickel-iron; alloys; powdered; blend; selected; constituents; plasma; sprayed; mandrel; desired; article; configuration; deposit; removed; subjected; liquid; phase; sintering; provide; alloyed; structure; formation; spraying; significantly; reduces; shrinkage; cracking; increasing; physical; properties; obtainable; employing; previously; powder; metallurgical; procedures; significantly reduce; phase sintering; tungsten-nickel-iron alloy; plasma spray; physical properties; liquid phase; plasma spraying; powder metallurgical; plasma sprayed; significantly reduces; desired article; fabricating thin-walled; iron alloys; iron alloy; /419/

Citation Formats

Hovis, Jr., Victor M., and Northcutt, Jr., Walter G. Method of fabricating thin-walled articles of tungsten-nickel-iron alloy. United States: N. p., 1982. Web.
Hovis, Jr., Victor M., & Northcutt, Jr., Walter G. Method of fabricating thin-walled articles of tungsten-nickel-iron alloy. United States.
Hovis, Jr., Victor M., and Northcutt, Jr., Walter G. Fri . "Method of fabricating thin-walled articles of tungsten-nickel-iron alloy". United States. https://www.osti.gov/servlets/purl/864223.
@article{osti_864223,
title = {Method of fabricating thin-walled articles of tungsten-nickel-iron alloy},
author = {Hovis, Jr., Victor M. and Northcutt, Jr., Walter G.},
abstractNote = {The present invention relates to a method for fabricating thin-walled high-density structures oftungsten-nickel-iron alloys. A powdered blend of the selected alloy constituents is plasma sprayed onto a mandrel having the desired article configuration. The sprayed deposit is removed from the mandrel and subjected to liquid phase sintering to provide the alloyed structure. The formation of the thin-walled structure by plasma spraying significantly reduces shrinkage, and cracking while increasing physical properties of the structure over that obtainable by employing previously known powder metallurgical procedures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

Patent:

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