Open Access
Review
Table 1
Representative recent studies on LPBF technology.
| Technologies | Challenges | Materials and methods | References |
|---|---|---|---|
| SLM (laser) | Emergence and evolution of the defects remain unclear | SS316L; High-fidelity simulations, synchrotron experiments | [25] |
| Ti-6Al-4V; High-speed X-ray imaging | [21] | ||
| Detection and imaging of the keyhole formation process remain a significant challenge | Ti-6Al-4V; Ultrahigh-speed synchrotron X-ray imaging | [26] | |
| Ti-6Al-4V; High-speed synchrotron X-ray imaging, thermal imaging and multiphysics simulations; Machine learning | [27] | ||
| AlSi10Mg; High-speed synchrotron X-ray imaging and a transverse magnetic field | [28] | ||
| Methods and materials used in AM technology remain insufficient | Ti-6Al-4V and 316L; In situ concentration modulations | [29] | |
| NiCoCr-based alloy with dispersing nanoscale Y2O3; Model-driven alloy design approach | [30] | ||
| Ti−5Al−5Mo−5V−3Cr; Adding 5.0 wt% Mo | [31] | ||
| Comprehensive mechanical properties remain unsatisfactory | High-entropy alloys AlCoCrFeNi2.1; Controlling microstructure | [32] | |
| Ti-6Al-4V; Hot isostatic pressing and solution treatment and ageing | [33] | ||
| SLS (laser) | Nylon plastic and aluminium; Discrete-element simulations, structure design | [34] |
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