| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
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Powder Materials Processing and Fundamental Understanding
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| Presentation Title |
Analysis of Defects and Testing of Tungsten Heavy Alloys |
| Author(s) |
Jessica Buckner, John Laing, Mark Reece, Zahra Ghanbari, Don Susan, Juan Duran, David Weiss |
| On-Site Speaker (Planned) |
Jessica Buckner |
| Abstract Scope |
Tungsten heavy alloy (WHA) is commonly used in applications with high density needs, such as counterweights, ordnance, and radiation shields. These alloys are sintered metal products comprised of tungsten particles in a Ni-Cu or Ni-Fe binder. Variation in processing parameters and handling can result in a variety of defects in the final product, including non-uniform binder distribution, cracking, and excessive porosity. This work will cover different defect types observed, with a focus on characterization and testing performed on binder concentrations referred to as binder “stringers”. A binder stringer is a linear defect formed when a crack forms in the green body during handling, and subsequent sintering operations lead to the flow of liquid binder into the crack, creating a string-like microstructural feature. Microstructural, mechanical, and fractographic analysis was completed to understand binder stringer implications on load bearing capacity in various load configurations.
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| Proceedings Inclusion? |
Planned: |
| Keywords |
Powder Materials, Other, |