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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 Laboratory (AMES), 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):
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
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
DOE Contract Number:  
AC02-07CH11358
Resource Type:
Patent
Resource Relation:
Patent File Date: 11/06/2017
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

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 = {Tue May 26 00:00:00 EDT 2020},
month = {Tue May 26 00:00:00 EDT 2020}
}

Works referenced in this record:

Thermal sprayed composite melt containment tubular component and method of making same
patent, March 2002


Method of making environmentally stable reactive alloy powders
patent, December 1994


Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions
patent, November 1994


Atomizing nozzle and process
patent, June 1992


Apparatus for making environmentally stable reactive alloy powders
patent, December 1996


Atomizing nozzle and method
patent, November 2000


Atomizing apparatus for making polymer and metal powders and whiskers
patent, March 2003


Stability of Gas Atomized Reactive Powders through Multiple Step In-Situ Passivation
patent-application, November 2017


One-piece, composite crucible with integral withdrawal/discharge section
patent, July 2002


Environmentally stable reactive alloy powders and method of making same
patent, September 1998


Method for forming oxidation resistant coating layer
patent-application, January 2013


Production Of Alloys Based On Titanium Aluminides
patent-application, May 2010


Stability of gas atomized reactive powders through multiple step in-situ passivation
patent-application, November 2013