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Title: Passivation and alloying element retention in gas atomized powders

Abstract

A method for gas atomization of a titanium alloy, nickel alloy, or other alumina (Al2O3)-forming alloy wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a passivation reaction film on the atomized particles wherein the reaction film retains a precursor halogen alloying element that is subsequently introduced into a microstructure formed by subsequent thermally processing of the atomized particles to improve oxidation resistance.

Inventors:
; ;
Issue Date:
Research Org.:
Ames Lab., Ames, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1650933
Patent Number(s):
10661339
Application Number:
15/732,398
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
DOE Contract Number:  
AC02-07CH11358
Resource Type:
Patent
Resource Relation:
Patent File Date: 11/06/2017
Country of Publication:
United States
Language:
English

Citation Formats

Heidloff, Andrew J., Rieken, Joel R., and Anderson, Iver E.. Passivation and alloying element retention in gas atomized powders. United States: N. p., 2020. Web.
Heidloff, Andrew J., Rieken, Joel R., & Anderson, Iver E.. Passivation and alloying element retention in gas atomized powders. United States.
Heidloff, Andrew J., Rieken, Joel R., and Anderson, Iver E.. Tue . "Passivation and alloying element retention in gas atomized powders". United States. https://www.osti.gov/servlets/purl/1650933.
@article{osti_1650933,
title = {Passivation and alloying element retention in gas atomized powders},
author = {Heidloff, Andrew J. and Rieken, Joel R. and Anderson, Iver E.},
abstractNote = {A method for gas atomization of a titanium alloy, nickel alloy, or other alumina (Al2O3)-forming alloy wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a passivation reaction film on the atomized particles wherein the reaction film retains a precursor halogen alloying element that is subsequently introduced into a microstructure formed by subsequent thermally processing of the atomized particles to improve oxidation resistance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

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