About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques III
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Presentation Title |
Neutron Diffraction Characterization of Additively Manufactured Metals |
Author(s) |
Bjorn Clausen, Donald W. Brown, D. Travis Carver |
On-Site Speaker (Planned) |
Bjorn Clausen |
Abstract Scope |
Additive manufacturing of metals results in unique microstructures that are distinct from conventionally produced metal. The fast local cooling rates can cause changes in phase composition and generates high dislocation densities and significant residual stresses. Neutron diffraction has proven an invaluable tool for non-destructive measurements of phase fractions, texture, internal and residual stresses and dislocation densities in metals and alloys. For materials produced by AM applying these techniques allow for sequential measurements of microstructural features as a function of processing steps, e.g. powders, as-built, removed from base plate, heat treated, and after mechanical testing. For the latter two, even in-situ measurements during heat treatment and mechanical loading are possible, and all but the powder measurements can be done on the same sample. We will show examples of neutron diffraction measurements on AM materials, such as austenitic and martensitic precipitation-hardening stainless steels, super alloys, and nuclear fuels. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Additive Manufacturing, Other |