| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
A-56: Compression Behavior of Additively Manufactured High Entropy Alloy with Transformation Induced Plasticity |
| Author(s) |
Saket Thapliyal, Saurabh S Nene, Priyanshi Agrawal, Rajiv S Mishra |
| On-Site Speaker (Planned) |
Saket Thapliyal |
| Abstract Scope |
Metastable high entropy alloys (HEAs) are known to exhibit local variation in work hardening near defects due to stress induced γ→ϵ transformation. Such phenomenon has been used in this study to design damage tolerant alloys for laser powder bed fusion (LPBF) additive manufacturing (AM) which often produces parts with some level of porosity. A Fe40Co21.5Mn19.2Cr14.7Si2.8Cu1.8 HEA (Cu-HEA) which shows metastability-promoted γ→ϵ transformation has been processed with LPBF-AM. The as-built samples were tested under compression at different strain levels and the results were compared with as-cast and wrought microstructures. Microstructural characterization of AM samples showed that ϵ phase percentage increased to 68% from an initial phase percentage of 2% upon compression at 40% strain level thereby confirming transformation induced plasticity in Cu-HEA. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |