Dispersoid reinforced alloy powder and method of making

Anderson, Iver E; Rieken, Joel

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A - human necessities
A01 - agriculture
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Title: Dispersoid reinforced alloy powder and method of making

Abstract

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with an introduced reactive species than does the alloying element and wherein one or more atomizing parameters is/are modified to controllably reduce the amount of the reactive species, such as oxygen, introduced into the atomized particles so as to reduce anneal times and improve reaction (conversion) to the desired strengthening dispersoids in the matrix. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies are made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.

Inventors:: Anderson, Iver E; Rieken, Joel

Issue Date:: Tue Dec 10 00:00:00 EST 2013

Research Org.:: AMES (Ames Laboratory (AMES), Ames, IA (United States))

Sponsoring Org.:: USDOE

OSTI Identifier:: 1109478

Patent Number(s):: 8603213

Application Number:: 12/072,298

Assignee:: Iowa State University Research Foundation, Inc. (Ames, IA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F2009/0888 - {casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control}
B22F2009/0896 - {particle transport, separation
B22F2201/02 - Nitrogen
B22F2201/03 - Oxygen
B22F2201/11 - Argon
B22F2201/30 - Carburising atmosphere
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F9/082 - {atomising using a fluid

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C1/056 - {using gas}
C22C32/0015 - {with only single oxides as main non-metallic constituents}
C22C32/0047 - {with carbides, nitrides, borides or silicides as the main non-metallic constituents}
C22C33/025 - {having an intermetallic of the REM-Fe type which is not magnetic}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/2991 - Coated

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DOE Contract Number:: AC02-07CH11358

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Anderson, Iver E, and Rieken, Joel. Dispersoid reinforced alloy powder and method of making.  United States: N. p., 2013. 
        Web.

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                    Anderson, Iver E, & Rieken, Joel. Dispersoid reinforced alloy powder and method of making.  United States.

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                    Anderson, Iver E, and Rieken, Joel. Tue .  
        "Dispersoid reinforced alloy powder and method of making".  United States.  https://www.osti.gov/servlets/purl/1109478.

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@article{osti_1109478,

  title        = {Dispersoid reinforced alloy powder and method of making},

  author       = {Anderson, Iver E and Rieken, Joel},

  abstractNote = {A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with an introduced reactive species than does the alloying element and wherein one or more atomizing parameters is/are modified to controllably reduce the amount of the reactive species, such as oxygen, introduced into the atomized particles so as to reduce anneal times and improve reaction (conversion) to the desired strengthening dispersoids in the matrix. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies are made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Dec 10 00:00:00 EST 2013},

  month        = {Tue Dec 10 00:00:00 EST 2013}

}

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