Laser additive manufacturing of heterostructured materials: from 1D to 3D
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ABSTRACT
The unique flexibilities of additive manufacturing (AM) to build complex-geometry components have been well investigated. However, the potential in AM of metallic components with high complexity in material distribution lacks exploration. The current AM of multi-materials is mostly in a linear format, which hardly inherits the merits of constitutive materials effectively and has demonstrated anisotropic mechanical properties. Laser additive manufacturing (LAM) enables the processing of heterogeneous materials with customised architectures to combine the merits of constitutive materials for attaining better mechanical property and functionality. To fully leverage the material-complexity capability of LAM, this report will introduce multi-type heterostructured multi-materials with configurable architectures from 1D to 3D, which includes the LAM-processed unidirectional, layerwise and voxelised heterostructured materials. The microstructure evolutions, interfacial bonding mechanisms, localised deformation behaviour, multi-scale mechanical properties and underlying strengthening mechanisms will be elucidated. The findings demonstrated a novel approach to circumvent material property tradeoffs. Furthermore, the findings could stimulate a promising research domain by AM of functional components with a configurable distribution of multiple materials in multi-scales for superior performance and novel functionality.
Dr Chaolin Tan is a Research Scientist, Principal Investigator and Doctoral Supervisor at the Singapore Institute of Manufacturing Technology (SIMTech), A*STAR. He was a joint PhD student between South China University of Technology and University of Birmingham (UK), and received PhD degree in Materials Processing Engineering in the middle of 2019. He was awarded as an Honorary Research Fellow of University of Birmingham and Guangzhou Young Talent Researcher in 2019, and nominated as a Fellow of International Association of Advanced Materials (IAAM) in 2022. He leads several research projects from China and Singapore as the PI. His research experience in Additive Manufacturing (3D printing), has been over 8 years. He has contributed over 50 SCI papers, including 24 SCI journal papers as the first author and 6 SCI papers as the correspondent (14 papers with IF >9.4), achieving an H-index of 20. He is the Editorial Board Member of the flagship journal International Journal of Machine Tools and Manufacture (IF 10.33), and Youth Editor of International Journal of Extreme Manufacturing (IF 10.03). He is also the Youth Editorial Committee Member of two SCI Q1 journals (Rare Metals (IF 6.31) and Transactions of Nonferrous Metals Society of China).