Recent Advances on Additive Manufacturing of Heterogeneous/Gradient Metallic Materials via Laser Powder Bed Fusion

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Review highlights progress in additive manufacturing using laser powder bed fusion, focusing on gradient structures and interfacial defects.

Recent innovations improve the fabrication of compositionally heterogeneous and gradient structures, enhancing performance.
The review highlights methods to control interfacial defects during the laser powder bed fusion process in multi-material parts.
Different LPBF processes and equipment for creating complex parts with dissimilar materials are discussed in detail.
Potential applications of compositionally heterogeneous and gradient structures showcase their versatility across industries.

Wang et al. (2025) studied this question.

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Review highlights progress in additive manufacturing using laser powder bed fusion, focusing on gradient structures and interfacial defects.