Method for locating metallic nitride inclusions in metallic alloy ingots

Title: Method for locating metallic nitride inclusions in metallic alloy ingots

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Abstract

A method of determining the location and history of metallic nitride and/or oxynitride inclusions in metallic melts. The method includes the steps of labeling metallic nitride and/or oxynitride inclusions by making a coreduced metallic-hafnium sponge from a mixture of hafnium chloride and the chloride of a metal, reducing the mixed chlorides with magnesium, nitriding the hafnium-labeled metallic-hafnium sponge, and seeding the sponge to be melted with hafnium-labeled nitride inclusions. The ingots are neutron activated and the hafnium is located by radiometric means. Hafnium possesses exactly the proper metallurgical and radiochemical properties for this use.

Inventors:

White, Jack C. ^[1]; Traut, Davis E. ^[2]; Oden, Laurance L. ^[1]; Schmitt, Roman A. ^[2]

(Albany, OR)
(Corvallis, OR)

Issue Date:: 1992-01-01

Research Org.:: National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV

OSTI Identifier:: 868274

Patent Number(s):: 5110546

Assignee:: United States of America as represented by Secretary of (Washington, DC) NETL

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; locating; metallic; nitride; inclusions; alloy; ingots; determining; location; history; oxynitride; melts; steps; labeling; coreduced; metallic-hafnium; sponge; mixture; hafnium; chloride; metal; reducing; mixed; chlorides; magnesium; nitriding; hafnium-labeled; seeding; melted; neutron; activated; located; radiometric; means; possesses; exactly; proper; metallurgical; radiochemical; properties; reduced metal; metallic alloy; metallic melt; chemical properties; metallic nitride; neutron activated; nitride inclusions; /420/

Citation Formats


                    White, Jack C., Traut, Davis E., Oden, Laurance L., and Schmitt, Roman A. Method for locating metallic nitride inclusions in metallic alloy ingots.  United States: N. p., 1992. 
        Web.

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                    White, Jack C., Traut, Davis E., Oden, Laurance L., & Schmitt, Roman A. Method for locating metallic nitride inclusions in metallic alloy ingots.  United States.

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                    White, Jack C., Traut, Davis E., Oden, Laurance L., and Schmitt, Roman A. Wed .  
        "Method for locating metallic nitride inclusions in metallic alloy ingots".  United States.  https://www.osti.gov/servlets/purl/868274.

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@article{osti_868274,

  title        = {Method for locating metallic nitride inclusions in metallic alloy ingots},

  author       = {White, Jack C. and Traut, Davis E. and Oden, Laurance L. and Schmitt, Roman A.},

  abstractNote = {A method of determining the location and history of metallic nitride and/or oxynitride inclusions in metallic melts. The method includes the steps of labeling metallic nitride and/or oxynitride inclusions by making a coreduced metallic-hafnium sponge from a mixture of hafnium chloride and the chloride of a metal, reducing the mixed chlorides with magnesium, nitriding the hafnium-labeled metallic-hafnium sponge, and seeding the sponge to be melted with hafnium-labeled nitride inclusions. The ingots are neutron activated and the hafnium is located by radiometric means. Hafnium possesses exactly the proper metallurgical and radiochemical properties for this use.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1992},

  month        = {1}

}

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