| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Solid-State Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Well-aligned nanoprecipitates in Nickel alloy produced by direct metal laser sintering |
| Author(s) |
Bo Yang, Zhongxia Shang, Jie Ding, Jack Lopez, William Jarosinski, Tianyi Sun, Yifan Zhang, Nicholas Richter, Haiyan Wang, Xinghang Zhang |
| On-Site Speaker (Planned) |
Bo Yang |
| Abstract Scope |
Nanostructured metallic materials have widespread industrial applications due to their high strength and radiation tolerance. Most bulk nanostructured alloys have been produced by severe plastic deformation. Here we show that direct metal laser sintering can be employed to produce fully dense Ni alloys with nanoprecipitates. Scanning electron microscopy studies on as-printed specimen identified well aligned arrays of nanoprecipitates decorated at dislocation cell walls. After stress relief treatment, dislocation cell walls dissolved and a different type of nanoprecipitates emerges with no obvious change in the separation distance. Transmission electron microscopy studies reveal the nanoprecipitates can form several aligned orientation relationships with the matrix. The nanoprecipitates also improve the work hardening ability of the alloy. This study suggests that additive manufacturing may open a new avenue to produce bulk nanostructured alloys for various applications. |
| Proceedings Inclusion? |
Planned: |