Passivation and alloying element retention in gas atomized powders

Heidloff, Andrew J.; Rieken, Joel R.; Anderson, Iver E.

Passivation and alloying element retention in gas atomized powders

Patent · 27 November 2023

OSTI ID:2293905

Heidloff, Andrew J.; Rieken, Joel R.; Anderson, Iver E.

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.

Research Organization:: Iowa State Univ., Ames, IA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC02-07CH11358

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

Patent Number(s):: 11,826,832

Application Number:: 16/873,501

OSTI ID:: 2293905

Country of Publication:: United States

Language:: English

References (8)

Thermal Decomposition of NF₃ by Ti, Si, and Sn Powders Vileno, Elizabeth; LeClair, Michael K.; Suib, Steven L. Chemistry of Materials, Vol. 7, Issue 4, p. 683-687 https://doi.org/10.1021/cm00052a012	journal	April 1995
Analysis of the spray deposition process Mathur, P.; Apelian, D.; Lawley, A. Acta Metallurgica, Vol. 37, Issue 2, p. 429-443 https://doi.org/10.1016/0001-6160(89)90227-7	journal	February 1989
Low temperature diffusion of oxygen in titanium and titanium oxide films Rogers, J. W.; Erickson, K. L.; Belton, D. N. Applied Surface Science, Vol. 35, Issue 1, p. 137-152 https://doi.org/10.1016/0169-4332(88)90043-8	journal	October 1988
Influence of chlorine on the oxidation behavior of TiAlMn intermetallic compound Kumagai, Masaki; Shibue, Kazuhisa; Kim, Mok-Soon Intermetallics, Vol. 4, Issue 7, p. 557-566 https://doi.org/10.1016/0966-9795(96)00043-X	journal	January 1996
Highly tuned gas atomization for controlled preparation of coarse powder. Hochleistungsgasverdüsung für die gezielte Präparation grober Pulver Anderson, I. E.; Byrd, D.; Meyer, J. Materialwissenschaft und Werkstofftechnik, Vol. 41, Issue 7, p. 504-512 https://doi.org/10.1002/mawe.201000636	journal	July 2010
Comparison of Different Fluorine Treatments for the Protection of TiAl-Alloys Against High Temperature Oxidation Donchev, Alexander; Schütze, Michael Materials Science Forum, Vol. 638-642, p. 1294-1299 https://doi.org/10.4028/www.scientific.net/MSF.638-642.1294	journal	January 2010
Improvement of the oxidation resistance of TiAl alloys by using the chlorine effect Schütze, M.; Hald, M. Materials Science and Engineering: A, Vol. 239-240, p. 847-858 https://doi.org/10.1016/S0921-5093(97)00675-8	journal	December 1997
Thermodynamic considerations of the beneficial effect of halogens on the oxidation resistance of TiAl-based alloys Donchev, A.; Gleeson, B.; Schütze, M. Intermetallics, Vol. 11, Issue 5, p. 387-398 https://doi.org/10.1016/S0966-9795(03)00003-7	journal	May 2003

Similar Records

Passivation and alloying element retention in gas atomized powders

Patent · 2020 · OSTI ID:1650933

Passivation and alloying element retention in gas atomized powders

Patent · 2017 · OSTI ID:1411527

Stability of gas atomized reactive powders through multiple step in-situ passivation

Patent · 2017 · OSTI ID:1357554

Passivation and alloying element retention in gas atomized powders

Citation Formats

References (8)

Similar Records

Related Subjects