Improving the oxidation resistance of nickel - based superalloys for turbine blades

I. Introduction: Challenges in energy savings for turbines engines Nickel-based superalloys can withstand high temperatures and severe oxidizing conditions, while maintaining superb mechanical properties. Because of this, they are widely used for aerospace and power generation applications. Since higher operating temperature leads to greater cycle efficiency, there are economic and environmental incentives to develop engines that can produce higher power output with lower fuel consumption. Although jet turbine blades are protected with thermal barrier coatings, adverse effects such as oxide-layer spallation makes it necessary to study the effects of trace elements on the oxidatized layers.