Microstructure evolution during near-net-shape fabrication of NixAly-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration
Abstract
Titanium carbide-nickel aluminide (TiC-NixAly) intermetallic matrix composite materials were fabricated with additive manufacturing and pressureless melt infiltration for applications intended for high-wear and corrosive environments while maintaining low density. In this work, two compositions of nickel aluminide are infiltrated into porous, printed TiC preforms. Net shaping of a nickel-rich infiltrant is less compared to the net shaping of the aluminum-rich infiltrant due to dissolution of TiC in the molten infiltrant. The microstructures and porosity of the two infiltrants with TiC are examined after processing. The explanation of shape retention from infiltration is explained, and the excellent shape retention in an Al-rich infiltrant system is thought to be from peritectic behavior and a metered infiltration of different phases during cooling and solidification without significant dissolution. The metered infiltration contributed to some porosity, microcracking, and segregated NixAly phases. We show that TiC can be shaped and infiltrated with intermetallics to provide a method of making composites with limited shrinkage and controlled geometry.
- Authors:
-
- Arconic Engines, Midway, GA (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
- OSTI Identifier:
- 1543207
- Alternate Identifier(s):
- OSTI ID: 1692118
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- International Journal of Refractory and Hard Metals
- Additional Journal Information:
- Journal Volume: 84; Journal Issue: C; Journal ID: ISSN 0263-4368
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Intermetallic matrix composites; Pressureless melt infiltration; NixAly-TiC composite
Citation Formats
Arnold, Joshua M., Cramer, Corson L., Elliott, Amy M., Nandwana, Peeyush, and Babu, Sudarsanam Suresh. Microstructure evolution during near-net-shape fabrication of NixAly-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration. United States: N. p., 2019.
Web. doi:10.1016/j.ijrmhm.2019.104985.
Arnold, Joshua M., Cramer, Corson L., Elliott, Amy M., Nandwana, Peeyush, & Babu, Sudarsanam Suresh. Microstructure evolution during near-net-shape fabrication of NixAly-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration. United States. https://doi.org/10.1016/j.ijrmhm.2019.104985
Arnold, Joshua M., Cramer, Corson L., Elliott, Amy M., Nandwana, Peeyush, and Babu, Sudarsanam Suresh. Tue .
"Microstructure evolution during near-net-shape fabrication of NixAly-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration". United States. https://doi.org/10.1016/j.ijrmhm.2019.104985. https://www.osti.gov/servlets/purl/1543207.
@article{osti_1543207,
title = {Microstructure evolution during near-net-shape fabrication of NixAly-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration},
author = {Arnold, Joshua M. and Cramer, Corson L. and Elliott, Amy M. and Nandwana, Peeyush and Babu, Sudarsanam Suresh},
abstractNote = {Titanium carbide-nickel aluminide (TiC-NixAly) intermetallic matrix composite materials were fabricated with additive manufacturing and pressureless melt infiltration for applications intended for high-wear and corrosive environments while maintaining low density. In this work, two compositions of nickel aluminide are infiltrated into porous, printed TiC preforms. Net shaping of a nickel-rich infiltrant is less compared to the net shaping of the aluminum-rich infiltrant due to dissolution of TiC in the molten infiltrant. The microstructures and porosity of the two infiltrants with TiC are examined after processing. The explanation of shape retention from infiltration is explained, and the excellent shape retention in an Al-rich infiltrant system is thought to be from peritectic behavior and a metered infiltration of different phases during cooling and solidification without significant dissolution. The metered infiltration contributed to some porosity, microcracking, and segregated NixAly phases. We show that TiC can be shaped and infiltrated with intermetallics to provide a method of making composites with limited shrinkage and controlled geometry.},
doi = {10.1016/j.ijrmhm.2019.104985},
journal = {International Journal of Refractory and Hard Metals},
number = C,
volume = 84,
place = {United States},
year = {Tue Jun 25 00:00:00 EDT 2019},
month = {Tue Jun 25 00:00:00 EDT 2019}
}
Web of Science
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