| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Microstructure, Defects, and Properties
|
| Presentation Title |
Tailoring of Thermal Expansion in an Aluminum Alloy Through the Addition of Ti-6Al-4V via Additive Manufacturing |
| Author(s) |
Beril Tonyali, Hui Sun, Jayme Keist, Zi-Kui Liu, Allison Beese |
| On-Site Speaker (Planned) |
Beril Tonyali |
| Abstract Scope |
Compositionally functionally graded materials (FGMs), enabled through processing dissimilar materials via fusion-based additive manufacturing, have variations in composition as a function of position, which allow for spatial tailoring of properties within a single component. However, to achieve desired properties in a component, it is critical to be able to predict the phases that form as a function of composition. In this work, the coefficients of thermal expansion (CTE) of blocks ranging in compositions between Al2219 to Ti-6Al-4V were predicted by using Scheil and equilibrium CALPHAD calculations to determine phase fractions, which were then used in homogenization methods to give the effective CTE for each block. The experimentally characterized phases and measured CTE values were compared to the predictions, demonstrating the ability to predict properties as a function of composition. |