Numerical simulation on directional solidification and heat treatment processes of turbine blades

Study on turbine blades is crucial due to their critical role in ensuring the efficient and reliable operation of aircraft engines. Nickel-based single crystal superalloys are extensively used in the hot manufacturing of turbine blades due to their exceptional high-temperature mechanical properties. The hot manufacturing of single crystal blades involves directional solidification and heat treatment. Experimental manufacturing of these blades is time-consuming, capital-intensive, and often insufficient to meet industrial demands. Numerical simulation techniques have gained widespread acceptance in blade manufacturing research due to their low energy consumption, high efficiency, and rapid turnaround time. This article introduces the modeling and simulation of hot manufacturing in single crystal blades. The discussion outlines the prevalent mathematical models employed in numerical simulations related to blade hot manufacturing. It encapsulates the advancements in research concerning macro to micro-level numerical simulation techniques for directional solidification and heat treatment processes. Furthermore, potential future trajectories for the numerical simulation of single crystal blade hot manufacturing are also discussed.