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Additive Manufacturing of High-Entropy Alloys: Microstructural Metastability and Mechanical Properties

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High-Entropy Materials: Theory, Experiments, and Applications

Abstract

Interesting properties of high-entropy alloys (HEAs) and technological advantages of additive manufacturing (AM) have boosted explosive research in AM of HEAs in recent years. This chapter introduces the working principles of various metal AM techniques and discusses the fundamental mechanisms for the formation of defects and microstructures during AM. This chapter also provides a comprehensive review on the microstructures, mechanical properties, and potential applications of AM HEAs. In particular, the formation of highly nonequilibrium microstructures during rapid solidification and its impact on the mechanical properties are discussed. Finally, several future research directions are proposed.

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Acknowledgments

W.C. acknowledges the financial support from the US National Science Foundation (CMMI-1927621 and DMR-2004429) and UMass Faculty Startup.

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    Shuai Guan & Wen Chen

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    Peter K. Liaw

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Guan, S., Chen, W. (2021). Additive Manufacturing of High-Entropy Alloys: Microstructural Metastability and Mechanical Properties. In: Brechtl, J., Liaw, P.K. (eds) High-Entropy Materials: Theory, Experiments, and Applications. Springer, Cham. https://doi.org/10.1007/978-3-030-77641-1_5

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