About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Materials Design and Alloy Development III -- Super Materials and Extreme Environments
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Presentation Title |
Additive Manufacturing and Characterization of High-density Materials for Aerospace Applications |
Author(s) |
Kristyn E. Kadala, Scott Smith |
On-Site Speaker (Planned) |
Kristyn E. Kadala |
Abstract Scope |
Refractory and high Z materials are essential for aerospace applications and environments demanding high thermal and structural loads. These materials are difficult to machine due to embrittlement, hardness, and toughness and are primarily cast or wrought due to high melting temperatures. As a result, manufacturing costs are often extremely high. To mitigate manufacturing and production risk, additive manufacturing of high Z materials through laser powder bed fusion presents a challenging yet attractive production solution by reducing touch labor, reducing production material waste, and allowing for more complex geometries than traditional machining. However, many AM parts are prone to cracking and embrittlement due to high rate of oxidation and thermal stresses experienced during a print. Our exploration into refractory and high Z alloy powders aims to mitigate micro-cracking risks while providing the same material properties valued so highly in the aerospace industry for traditionally machined refractory metal parts. |
Proceedings Inclusion? |
Planned: |