Authors:
Dominic Peachey (1), Vivès Solange (2), Yining He (1), Pimin Zhang (1), John Clark (1), Zara Hussain (1), Thomas Wagstaff (1), André Nemeth (1), David Crudden (1)
1- Alloyed Ltd., Oxford, UK
2- Aubert & Duval, Paris, France
Abstract:
The evolution of additive manufacturing (AM) has sparked a growing interest in using nickel-based superalloys, particularly for high-temperature applications above 1000°C. Traditional alloys, intended for casting or wrought processes, face challenges in AM due to the rapid heating/cooling rates and multiple melt cycles, resulting in compromises to material performance or part design freedom. Here we introduce ABD®-1000AM, a novel high gamma prime nickel-based superalloy designed computationally using the Alloys-by-Design (ABD®) approach, tailored for high-temperature AM applications. ABD®-1000AM exhibits world leading performance in terms of both processing capability as-well-as high temperature mechanical and environmental performance at 1000°C. The study discusses the alloy design and development strategy, highlighting the trade-offs in key performance parameters and the intricate process-microstructure-performance optimization undertaken to achieve the alloy’s exceptional creep resistance. Based on the insights gained the future direction of alloy development of superalloys for complex AM components is discussed.
DOI:
https://doi.org/10.59499/EP246283346
