SLM produces extremely rapid solidification, resulting in a fine and uniform microstructure that enhances the mechanical strength of Hastelloy X. This refined grain structure helps the alloy maintain stability under high thermal stress, making it suitable for combustor segments, turbine shrouds and high-pressure components in aerospace and aviation applications.
Compared with conventionally machined parts, SLM-built Hastelloy X exhibits higher resistance to creep and thermal fatigue due to controlled melt pool parameters and layer-by-layer construction. The ability to optimize internal cooling channels further enhances performance in high-temperature environments such as power generation turbines and reactors.
After printing, properties are enhanced using HIP and heat treatment, which remove porosity and improve phase distribution. Finishing steps via EDM or CNC ensure dimensional accuracy for sealing interfaces, cooling passages and high-pressure mounting features.
SLM allows designers to incorporate lattice structures, internal flow channels and weight-reduction strategies that are unattainable with conventional manufacturing. This enables Hastelloy X components to achieve higher efficiency, reduced mass and improved thermal management while maintaining structural integrity in critical energy and aerospace systems.