Additive manufacturing of ferritic/martensitic steel with improved high temperature strength
Abstract
Techniques for using additive manufacturing (AM) to fabricate creep resistant ferritic/martensitic steel with improved high temperature strength are described. AM processing may be performed on Grade 91 steel powder. Beam powers from about 221 W to about 270 W may be used. Traverse rates from about 675 mm/s to about 825 mm/s may be used. Heat inputs ranging from about 55.7 J/mm3 to about 83.2 J/mm3 may be produced. Creep resistant ferritic/martensitic steel, produced according to the present disclosure, has improved strain yield strength and ductility as compared to wrought steel.
- Inventors:
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1986705
- Patent Number(s):
- 11471946
- Application Number:
- 16/563,278
- Assignee:
- Triad National Security, LLC (Los Alamos, NM)
- DOE Contract Number:
- 89233218CNA000001
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 09/06/2019
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Lienert, Thomas J., Maloy, Stuart Andrew, Eftink, Benjamin P., and Vega, Daniel. Additive manufacturing of ferritic/martensitic steel with improved high temperature strength. United States: N. p., 2022.
Web.
Lienert, Thomas J., Maloy, Stuart Andrew, Eftink, Benjamin P., & Vega, Daniel. Additive manufacturing of ferritic/martensitic steel with improved high temperature strength. United States.
Lienert, Thomas J., Maloy, Stuart Andrew, Eftink, Benjamin P., and Vega, Daniel. Tue .
"Additive manufacturing of ferritic/martensitic steel with improved high temperature strength". United States. https://www.osti.gov/servlets/purl/1986705.
@article{osti_1986705,
title = {Additive manufacturing of ferritic/martensitic steel with improved high temperature strength},
author = {Lienert, Thomas J. and Maloy, Stuart Andrew and Eftink, Benjamin P. and Vega, Daniel},
abstractNote = {Techniques for using additive manufacturing (AM) to fabricate creep resistant ferritic/martensitic steel with improved high temperature strength are described. AM processing may be performed on Grade 91 steel powder. Beam powers from about 221 W to about 270 W may be used. Traverse rates from about 675 mm/s to about 825 mm/s may be used. Heat inputs ranging from about 55.7 J/mm3 to about 83.2 J/mm3 may be produced. Creep resistant ferritic/martensitic steel, produced according to the present disclosure, has improved strain yield strength and ductility as compared to wrought steel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {10}
}
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