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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:
;
Issue Date:
Research Org.:
AMES (Ames Laboratory (AMES), Ames, IA (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1109478
Patent Number(s):
8,603,213
Application Number:
12/072,298
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA)
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.
Anderson, Iver E, & Rieken, Joel. Dispersoid reinforced alloy powder and method of making. United States.
Anderson, Iver E, and Rieken, Joel. Tue . "Dispersoid reinforced alloy powder and method of making". United States. https://www.osti.gov/servlets/purl/1109478.
@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 = {2013},
month = {12}
}

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