| About this Abstract |
| Meeting |
Superalloys 2024
|
| Symposium
|
Superalloys 2024
|
| Presentation Title |
D-3: Modeling of Powder Metallurgy Hot Isostatic Pressing and Application to Ni-base Superalloy |
| Author(s) |
Swapnil D. Patil, Alon Mazor, Nathan Almirall, Christopher McLasky, Vipul Gupta, Kai Lorcharoensery, Nicholas Krutz, Justin Bennett, Timothy Hanlon |
| On-Site Speaker (Planned) |
Alon Mazor |
| Abstract Scope |
A finite element (FE) model was developed to simulate the densification of a nickel-base superalloy powder during the hot isostatic pressing (HIP) process. A unified material model which simultaneously captures the various deformation mechanisms, such as plasticity and creep, was used in this study. Elaborate experiments were carried out to generate thermal and mechanical properties and calibrate the model parameters for an aerospace industry relevant powder alloy. FE simulations of powder encapsulated in a stainless-steel canister were performed to evaluate the model capability to capture the canister distortion as well as powder densification during the HIP process. The densification and shape change predictions from the FE model were verified using experimental data obtained from interrupted HIP runs performed at various temperatures and pressure ramp rates. Good agreement was found between the model predictions and the experimental results. It was found that including the creep response of the canister in the simulation had a significant influence on the capability of the FE model to predict the powder densification behavior, especially during the hold time at peak pressure. The FE model provided critical insights on mechanical factors leading to non-uniform densification in the powder compact and canister deformation. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |