| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Entropy Alloys IX: Alloy Development and Properties
|
| Presentation Title |
Exploring the Structure-property Relationships of (Ti, TiAl6V4)xCoCrFeMnNi Graded High Entropy Alloy |
| Author(s) |
Michael A. Melia, Jonathan Pegues, Mark Rodriguez, Raymond Puckett, Shaun Whetten, Nicolas Argibay, Andrew Kustas |
| On-Site Speaker (Planned) |
Michael A. Melia |
| Abstract Scope |
High entropy alloys are a promising group of materials with seemingly limitless and unexplored composition spaces capable of producing physical/mechanical properties that exceed those of conventional materials. Utilizing an additive manufacturing enabled high throughput materials discovery framework, titanium graded high entropy alloys are screened to establish first order structure-property relationships. Compact metallurgical (Ti, TiAl6V4)xCoCrFeMnNi specimens spanning x = 0 – 100% at. fractions were fabricated using in-situ alloying enabled by powder based directed energy deposition. Microstructure evolution as a function of specific (Ti, TiAl6V4)xCoCrFeMnNi compositions were identified through a combination of XRD/XRF and SEM-EDS/EBSD. Microhardness and corrosion measurements were also performed to rapidly establish baseline structure-property relationships. Functional composition maps identifying compositions that promote solid solutions, multiple phases, intermetallics, high hardness, and brittleness are discussed in relation to the alloy-specific microstructural characteristics and configurational entropy |
| Proceedings Inclusion? |
Planned: |