About this Abstract |
Meeting |
Superalloys 2021
|
Symposium
|
Superalloys 2021
|
Presentation Title |
Computational Design of Additively Printable Nickel Superalloys |
Author(s) |
Adarsh Shukla, Sanket Sarkar, Durga Ananthanarayanan, Raghav Adharapurapu, Laura Dial, Sanjay K Sondhi |
On-Site Speaker (Planned) |
Adarsh Shukla |
Abstract Scope |
The recent advances in additive manufacturing (AM) have led to printing of complex structural components. The highly non-equilibrium processing conditions encountered during Direct Metal Laser Melting (DMLM) frequently lead to micro-cracking in high-temperature capable Ni-superalloys, irrespective of processing conditions, limiting their current applicability. This paper aims to develop a general criterion to assess printability of a Ni-superalloy solely based on its composition. Thirty-four Ni-superalloys spanning a wide range of alloying elements were printed, each with twenty-four process conditions, and their crack densities were measured in order to have a consistent set of experimental data for building a model. The models available in literature for predicting cracking susceptibility were evaluated against the experimental data. Finally, a hybrid model, based on physics based quantities, was built with the most significant input features (x’s). This model correlates well with the experimental data and is applicable across a wide range of Ni-superalloy compositions. |
Proceedings Inclusion? |
Undecided |