| Abstract Scope |
High-temperature alloys are critical for engineering applications and thus have received much attention during advanced manufacturing innovation. The fundamental knowledge of phase transformations in alloys usually requires a good understanding of multicomponent thermodynamics and diffusion kinetics. A successful materials design requires a comprehensive evaluation of the process-structure-property relationships, for which the processing influence on phase transformation becomes rather significant. However, when applying theoretical knowledge to predict and identify the microstructure-property relationships, uncertainty quantification and propagation due to different processing steps become vital but often tend to get forgotten. In this talk, several examples of phase transformations in superalloy will be introduced. Some insights into the processing impact on microstructure evolution will be presented through the comparison of phase transformations between different manufacturing processes. The discussion highlights the requirement of applying correct phase transformation guidelines, such as continuous cooling transformation and isothermal transformation diagrams, to optimize processing in different manufacturing techniques. |