| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond V
|
| Presentation Title |
Laser Directed Energy Deposition of NiCoCr Medium Entropy Alloy |
| Author(s) |
Thaer Syam, Vasanth C. Shunmugasamy, Ibrahim Karaman, Bilal Mansoor |
| On-Site Speaker (Planned) |
Thaer Syam |
| Abstract Scope |
Additive manufacturing processes like Directed Energy Deposition (DED) provide the flexibility to study important alloys, such as NiCoCr medium entropy alloy (MEA), to establish correlations between process parameters and properties. The present research utilizes DED to prepare this important MEA system and characterize for microstructure and mechanical properties. Here we report on the effect of DED parameters, such as laser power, scan speed, feed rate, hatch spacing, and layer thickness, which contribute to specific dilutions, on the microstructure and mechanical properties of NiCoCr. By deploying a robust printability map informed framework, we achieved fully dense, near defect free NiCoCr coupons (> 99% relative density) with ultimate tensile strength of up to 801 MPa and ~45 % elongation, comparable to those of wrought alloy properties. |