Microstructure evolution during near-net-shape fabrication of NixAly-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration

Arnold, Joshua M.; Cramer, Corson L.; Elliott, Amy M.; Nandwana, Peeyush; Babu, Sudarsanam Suresh

doi:10.1016/j.ijrmhm.2019.104985

Title: Microstructure evolution during near-net-shape fabrication of Ni_xAl_y-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration

Abstract

Titanium carbide-nickel aluminide (TiC-Ni_xAl_y) 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 Ni_xAl_y 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:

Arnold, Joshua M. ^[1]; Cramer, Corson L. ^[2];

^[2];

^[2]; Babu, Sudarsanam Suresh ^[3]

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:: Tue Jun 25 00:00:00 EDT 2019

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.

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                    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

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                    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.

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@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}

}

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https://doi.org/10.1016/j.ijrmhm.2019.104985

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Cited by: 9 works

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Figure 1: Cermet process flow for binder jet additive manufacturing and melt infiltration processing.

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Title: Microstructure evolution during near-net-shape fabrication of NixAly-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration

Abstract

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Title: Microstructure evolution during near-net-shape fabrication of Ni_xAl_y-TiC cermets through binder jet additive manufacturing and pressureless melt infiltration