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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 of tungsten-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:
;
OSTI Identifier:
5316883
Assignee:
TIC; ERA-05-029278; EDB-80-083977
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; IRON ALLOYS; FABRICATION; NICKEL ALLOYS; TUNGSTEN ALLOYS; PHYSICAL PROPERTIES; POWDER METALLURGY; POWDERS; SHRINKAGE; SINTERING; SPRAYS; THICKNESS; WALLS; ALLOYS; DIMENSIONS; METALLURGY; 360101* - Metals & Alloys- Preparation & Fabrication

Citation Formats

Hovis, Jr, V M, and Northcutt, Jr, W G. Method of fabricating thin-walled articles of tungsten-nickel-iron alloy. United States: N. p., Web.
Hovis, Jr, V M, & Northcutt, Jr, W G. Method of fabricating thin-walled articles of tungsten-nickel-iron alloy. United States.
Hovis, Jr, V M, and Northcutt, Jr, W G. . "Method of fabricating thin-walled articles of tungsten-nickel-iron alloy". United States.
@article{osti_5316883,
title = {Method of fabricating thin-walled articles of tungsten-nickel-iron alloy},
author = {Hovis, Jr, V M and Northcutt, Jr, W G},
abstractNote = {The present invention relates to a method for fabricating thin-walled high-density structures of tungsten-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 = {},
month = {}
}