Abstract
Nickel- and Cobalt-based superalloys are state-of-the art materials for the manufacturing of components in the hottest sections of aero-engines and land-based power generation gas turbines. [...]
Highlights
Introduction and ScopeNickel- and Cobalt-based superalloys are state-of-the art materials for the manufacturing of components in the hottest sections of aero-engines and land-based power generation gas turbines
Due to the increase of the operating temperatures and/or the complexity of geometries of components made of Ni-based superalloys in gas turbines, new issues related to their durability in service or to their processing have been identified
The aim of this Special Issue is to provide an outlook on recent research activities related to the processing and use of Ni-based superalloys and their coatings during service
Summary
Nickel- and Cobalt-based superalloys are state-of-the art materials for the manufacturing of components in the hottest sections of aero-engines and land-based power generation gas turbines. They are typically used for the manufacturing of combustion chambers, high- and low-pressure turbine blades and vanes, shrouds and casings, among other components. Despite the recent introduction of new materials (e.g., Ceramic Matrix Composites and Titanium Aluminides) to replace Ni-based superalloys for some components in the most advanced gas turbines, Ni- and Co-based superalloys are still, and will be widely, used for high-temperature parts. Due to the increase of the operating temperatures and/or the complexity of geometries of components made of Ni-based superalloys in gas turbines, new issues related to their durability in service or to their processing have been identified. The aim of this Special Issue is to provide an outlook on recent research activities related to the processing and use of Ni-based superalloys and their coatings during service
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