Wrought stainless steel compositions having engineered microstructures for improved heat resistance
Abstract
A wrought stainless steel alloy composition includes 12% to 25% Cr, 8% to 25% Ni, 0.05% to 1% Nb, 0.05% to 10% Mn, 0.02% to 0.15% C, 0.02% to 0.5% N, with the balance iron, the composition having the capability of developing an engineered microstructure at a temperature above 550.degree. C. The engineered microstructure includes an austenite matrix having therein a dispersion of intragranular NbC precipitates in a concentration in the range of 10.sup.10 to 10.sup.17 precipitates per cm.sup.3.
- Inventors:
-
- Oak Ridge, TN
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 913431
- Patent Number(s):
- 7258752
- Application Number:
- 10/397,582
- Assignee:
- UT-Battelle LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Maziasz, Philip J, Swindeman, Robert W, Pint, Bruce A, Santella, Michael L, and More, Karren L. Wrought stainless steel compositions having engineered microstructures for improved heat resistance. United States: N. p., 2007.
Web.
Maziasz, Philip J, Swindeman, Robert W, Pint, Bruce A, Santella, Michael L, & More, Karren L. Wrought stainless steel compositions having engineered microstructures for improved heat resistance. United States.
Maziasz, Philip J, Swindeman, Robert W, Pint, Bruce A, Santella, Michael L, and More, Karren L. Tue .
"Wrought stainless steel compositions having engineered microstructures for improved heat resistance". United States. https://www.osti.gov/servlets/purl/913431.
@article{osti_913431,
title = {Wrought stainless steel compositions having engineered microstructures for improved heat resistance},
author = {Maziasz, Philip J and Swindeman, Robert W and Pint, Bruce A and Santella, Michael L and More, Karren L},
abstractNote = {A wrought stainless steel alloy composition includes 12% to 25% Cr, 8% to 25% Ni, 0.05% to 1% Nb, 0.05% to 10% Mn, 0.02% to 0.15% C, 0.02% to 0.5% N, with the balance iron, the composition having the capability of developing an engineered microstructure at a temperature above 550.degree. C. The engineered microstructure includes an austenite matrix having therein a dispersion of intragranular NbC precipitates in a concentration in the range of 10.sup.10 to 10.sup.17 precipitates per cm.sup.3.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {8}
}
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Works referenced in this record:
Structure and Properties of a 19Cr-25Ni-Mo-Ti Steel
book, January 1979
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Materials Selection for High Temperature (750°–1000°C) Metallic Recuperators for Improved Efficiency Microturbines
conference, July 2014
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- ASME Turbo Expo 2001: Power for Land, Sea, and Air, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery