Shape retention and infiltration height in complex WC-Co parts made via binder jet of WC with subsequent Co melt infiltration

Cramer, Corson L.; Wieber, Natalie R.; Aguirre, Trevor G.; Lowden, Richard Andrew; Elliott, Amy M.

doi:10.1016/j.addma.2019.100828

Title: Shape retention and infiltration height in complex WC-Co parts made via binder jet of WC with subsequent Co melt infiltration

Abstract

Additive manufacturing (AM) of complex tungsten carbide-cobalt (WC-Co) parts was achieved using binder jet additive manufacturing (BJAM) of WC powders followed by Co infiltration. The intent of the study is to explore the shape retention, infiltration height, and properties of parts made with this method. Using BJAM with infiltration of the metal phase can limit shrinkage and grain growth in ceramic-metal (cermet) composites compared to other additive manufacturing (AM) methods. Knowledge of previous infiltration studies was used to help process parts to imitate production of parts. The properties such as density, microstructure, grain size, and hardness of the parts are characterized along the infiltration height. Fracture toughness is measured where applicable. Furthermore, this approach has the potential to achieve highly dense WC-Co parts that are net-shaped with some ternary phase and z-direction distortion.

Authors:

Cramer, Corson L. ^[1]; Wieber, Natalie R. ^[1]; Aguirre, Trevor G. ^[2];

^[1];

^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Colorado State Univ., Fort Collins, CO (United States)

Publication Date:: Thu Aug 08 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)

OSTI Identifier:: 1560458

Alternate Identifier(s):: OSTI ID: 2325171

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Additive Manufacturing

Additional Journal Information:: Journal Volume: 29; Journal Issue: C; Journal ID: ISSN 2214-8604

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Binder jet additive manufacturing; WC-Co; Infiltration

Citation Formats


                    Cramer, Corson L., Wieber, Natalie R., Aguirre, Trevor G., Lowden, Richard Andrew, and Elliott, Amy M. Shape retention and infiltration height in complex WC-Co parts made via binder jet of WC with subsequent Co melt infiltration.  United States: N. p., 2019. 
Web.  doi:10.1016/j.addma.2019.100828.

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                    Cramer, Corson L., Wieber, Natalie R., Aguirre, Trevor G., Lowden, Richard Andrew, & Elliott, Amy M. Shape retention and infiltration height in complex WC-Co parts made via binder jet of WC with subsequent Co melt infiltration.  United States.  https://doi.org/10.1016/j.addma.2019.100828

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                    Cramer, Corson L., Wieber, Natalie R., Aguirre, Trevor G., Lowden, Richard Andrew, and Elliott, Amy M. Thu .  
"Shape retention and infiltration height in complex WC-Co parts made via binder jet of WC with subsequent Co melt infiltration".  United States.  https://doi.org/10.1016/j.addma.2019.100828.  https://www.osti.gov/servlets/purl/1560458.

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@article{osti_1560458,

  title        = {Shape retention and infiltration height in complex WC-Co parts made via binder jet of WC with subsequent Co melt infiltration},

  author       = {Cramer, Corson L. and Wieber, Natalie R. and Aguirre, Trevor G. and Lowden, Richard Andrew and Elliott, Amy M.},

  abstractNote = {Additive manufacturing (AM) of complex tungsten carbide-cobalt (WC-Co) parts was achieved using binder jet additive manufacturing (BJAM) of WC powders followed by Co infiltration. The intent of the study is to explore the shape retention, infiltration height, and properties of parts made with this method. Using BJAM with infiltration of the metal phase can limit shrinkage and grain growth in ceramic-metal (cermet) composites compared to other additive manufacturing (AM) methods. Knowledge of previous infiltration studies was used to help process parts to imitate production of parts. The properties such as density, microstructure, grain size, and hardness of the parts are characterized along the infiltration height. Fracture toughness is measured where applicable. Furthermore, this approach has the potential to achieve highly dense WC-Co parts that are net-shaped with some ternary phase and z-direction distortion.},

  doi          = {10.1016/j.addma.2019.100828},

  journal      = {Additive Manufacturing},

  number       = C,

  volume       = 29,

  place        = {United States},

  year         = {Thu Aug 08 00:00:00 EDT 2019},

  month        = {Thu Aug 08 00:00:00 EDT 2019}

}

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https://doi.org/10.1016/j.addma.2019.100828

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Cited by: 33 works

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Figures / Tables:

Figure 1: Setup of prints and progression of Co infiltration into WC as it makes WC-Co and continues through the part.

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