Limitations of Superalloys and Future Research
Aalia Asghar, Nadia Akram, Khalid Mahmood Zia, Muhammad Saeed, Akbar Ali
Superalloys, majorly nickel based, are widely used in applications where materials are required to operate at high temperature. However, there are certain challenges that still stand and hamper the growth of superalloys in aerospace and power generation industries even though they hold the major market share for their application. This review sought to look at the current state, opportunity and challenges as well as the future outlook of superalloys from materials chemistry standpoint. Again, superalloys are characterized by a few disadvantages such as; high cost, need complex manufacturing processes and environmental unfriendly. The cost problem results from varied prices of uncomplicated components for instance nickel besides the embraced usage of rare costlier elements for instance rhenium. Superior properties of the γ/γ’ microstructure of super alloys come at the cost of difficult manufacturing and recycling processes. There are few environmental considerations: high energy usage is used in production and there are problems with recyclability. Exploring these challenges is area of future studies and development of new strategies for carrying out the research. They include oxide dispersion strengthened (ODS) super alloys for fusion reactor using 3-D printing technology for material minimization and refractory high-entropy alloys (RHEAs) for hypersonic flight purposes. Measures that are in the works include creation of protective smart coatings against environmental erosion, coming up with rhenium free super alloys and enhancing efficiency in the recovery via electrochemistry. Recent publications have revealed improvements in super alloy design using machine learning thus expectant property predictions and beneficial composition modifications. Yet, the field is at the crossroads for which the priorities lie in the improvement of performance, at the cost of economic and environmental impacts. The prospects for superalloys are defined by the need to create parts from materials that are stronger, more resistant to temperature and are ecologically friendly to be used in the frames of the further anticipated advancement of manufacturing technologies and application.
Keywords
Super Alloy Market, Challenges, Cost and Complexity, Resource Availability, Applications of Super Alloys, Future Progress
Published online 9/10/2025, 12 pages
Citation: Aalia Asghar, Nadia Akram, Khalid Mahmood Zia, Muhammad Saeed, Akbar Ali, Limitations of Superalloys and Future Research, Materials Research Foundations, Vol. 178, pp 131-142, 2025
DOI: https://doi.org/10.21741/9781644903698-8
Part of the book on Superalloys
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