Fundamentals of Superalloys

Dear Colleagues,

Superalloys represent one of the most promising classes of high-performance materials. Primarily intended for high-temperature applications, they combine a number of crucial materials properties including excellent strength, creep resistance and surface stability (corrosion resistance). The key aspect is that these composites are formed by two phases coherently co-existing at the nano-scale. Superalloys based on Ni have recently become commercially used, those dominated by Co are intended to increase the operational temperatures even higher and, last but not least, Fe-based superalloys are being developed as cost-effective alternatives. Importantly, advanced materials design via fine-tunning the chemical composition and/or processing steps has not stopped in any of these superalloys sub-classes. Facing numerous industrial challenges, a major breakthrough is critically needed.

This Special Issue aims at allowing a further advancement in superalloys design via collecting findings related to superalloys composition, structure, properties and processing as well as their mutual inter-relations. Invited are contributions of experimental and/or theoretical nature addressing thermodynamic, structural, mechanical and electronic properties of constituting phases, interfaces between them, as well as overall composites.

Dr. Martin Friák
Guest Editor

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