About this Abstract |
Meeting |
MS&T23: Materials Science & Technology
|
Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
Development of Titanium-Zirconium-Molybdenum Alloy for Structural Material Usage in Microreactors |
Author(s) |
John S. Carpenter, Michael Brand, Joseph Goodrich, Rose Bloom |
On-Site Speaker (Planned) |
John S. Carpenter |
Abstract Scope |
In order to maximize energy output of the microreactors, materials must be able to withstand high temperature without melting and without substantial decreases in mechanical properties. This presentation will investigate titanium – zirconium – molybdenum alloy (TZM) as it allows for potentially higher microreactor operating temperatures than traditional reactor materials. This alloy was developed for use in rockets and has a very high melting point (2623°C) but is difficult to form, machine and join. With limited needs in aerospace, literature is appropriately sparse in looking at the additive manufacture of TZM. The use of powder bed fusion to develop coupons with appropriate densities and mechanical properties for employment as structural materials in microreactors is explored in this presentation. It is seen that management of heat during manufacturing is critical to avoiding porosity and cracks. In addition, AM can produce TZM material with mechanical properties approaching that of stainless steel alternatives. |