Infiltration studies of additive manufacture of WC with Co using binder jetting and pressureless melt method
Abstract
Additive manufacturing (AM) of tungsten carbide-cobalt (WC-Co) is explored starting with WC preforms shaped with binder jet additive manufacturing (BJAM) followed by melt infiltration of Co. The research objective is to demonstrate the ability to net-shape WC-Co composites through BJAM of a WC preform followed by backfilling with cobalt via pressureless infiltration. This method also has the potential to minimize shrinkage and grain growth compared to other AM techniques. The effects of sintering, Co content, and infiltration time on the net shaping and properties of processed composites are shown. The best shaped material had an average grain size of 5.1 μm, 32 vol.% Co, density of 98.54% theoretical, fracture toughness of 23.2 MPa m1/2, and hardness of 9.0 GPa. Data presented illustrates that the proposed approach results in favorable ceramic-metal (cermet) properties and is viable for fabricating cermets of other material combinations. Furthermore successful AM of cermets provides complex geometries, high throughout, and low costs.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, 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)
- OSTI Identifier:
- 1515699
- Alternate Identifier(s):
- OSTI ID: 2325149
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Additive Manufacturing
- Additional Journal Information:
- Journal Volume: 28; 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; Cermet composite; Pressureless melt infiltration
Citation Formats
Cramer, Corson L., Nandwana, Peeyush, Lowden, Richard Andrew, and Elliott, Amy M. Infiltration studies of additive manufacture of WC with Co using binder jetting and pressureless melt method. United States: N. p., 2019.
Web. doi:10.1016/j.addma.2019.04.009.
Cramer, Corson L., Nandwana, Peeyush, Lowden, Richard Andrew, & Elliott, Amy M. Infiltration studies of additive manufacture of WC with Co using binder jetting and pressureless melt method. United States. https://doi.org/10.1016/j.addma.2019.04.009
Cramer, Corson L., Nandwana, Peeyush, Lowden, Richard Andrew, and Elliott, Amy M. Mon .
"Infiltration studies of additive manufacture of WC with Co using binder jetting and pressureless melt method". United States. https://doi.org/10.1016/j.addma.2019.04.009. https://www.osti.gov/servlets/purl/1515699.
@article{osti_1515699,
title = {Infiltration studies of additive manufacture of WC with Co using binder jetting and pressureless melt method},
author = {Cramer, Corson L. and Nandwana, Peeyush and Lowden, Richard Andrew and Elliott, Amy M.},
abstractNote = {Additive manufacturing (AM) of tungsten carbide-cobalt (WC-Co) is explored starting with WC preforms shaped with binder jet additive manufacturing (BJAM) followed by melt infiltration of Co. The research objective is to demonstrate the ability to net-shape WC-Co composites through BJAM of a WC preform followed by backfilling with cobalt via pressureless infiltration. This method also has the potential to minimize shrinkage and grain growth compared to other AM techniques. The effects of sintering, Co content, and infiltration time on the net shaping and properties of processed composites are shown. The best shaped material had an average grain size of 5.1 μm, 32 vol.% Co, density of 98.54% theoretical, fracture toughness of 23.2 MPa m1/2, and hardness of 9.0 GPa. Data presented illustrates that the proposed approach results in favorable ceramic-metal (cermet) properties and is viable for fabricating cermets of other material combinations. Furthermore successful AM of cermets provides complex geometries, high throughout, and low costs.},
doi = {10.1016/j.addma.2019.04.009},
journal = {Additive Manufacturing},
number = C,
volume = 28,
place = {United States},
year = {Mon Apr 15 00:00:00 EDT 2019},
month = {Mon Apr 15 00:00:00 EDT 2019}
}
Web of Science
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