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High-entropy alloys (HEAs) have emerged as a promising class of materials due to their exceptional mechanical properties, thermal stability, and corrosion resistance. The application of HEAs in Wire Arc Additive Manufacturing (WAAM) presents new opportunities for large-scale component fabrication with customized material properties. This paper reviews recent developments in WAAM processing of HEAs, focusing on the influence of process parameters on microstructure evolution, mechanical performance, and potential industrial applications. Challenges such as segregation, porosity, and residual stresses are also discussed, along with strategies for optimizing HEA properties through alloy design and process control. Furthermore, the potential industrial applications of WAAM-fabricated HEAs in aerospace, marine, and energy sectors are highlighted, demonstrating their relevance in high-performance environments. The insights presented in this review contribute to a deeper understanding of WAAM-based HEAs, guiding future research toward process optimization and industrial adoption.
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Gürkan et al. (2025) studied this question.
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