Tomography of Laser Powder Bed Fusion Maraging Steel
Abstract
:1. Introduction
2. Material and Methods
2.1. Based Material
2.2. Laser Powder Bed Fusion
2.3. Defects Characterisation
3. Results and Discussion
4. Conclusions
- (1)
- A greater occurrence of pores is observed in the regions adjacent to the surface where the final layer of material is applied. Due to their expansive surface area, these pores may be classified as keyhole pores. Notably, the values are not represented in 2D, as only a single slice is evaluated in each study. Moreover, since the pore shape is probably spherical, it is plausible that the obtained value may differ from the actual value. Thus, OM is not recommended for studying the type of pore in the surroundings of the surface.
- (2)
- Keyhole pores only appear in surface slides with the used printing configuration as the deposition of another layer on top of the last one makes them disappear after reheating.
- (3)
- Based on the stability of density above 99.9%, which is similar to the results obtained by OM, it can be concluded that both methods are valid and accurate.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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[wt/%] | Fe | Ni | Co | Mo | Ti | Cr | Si | Al | Mn | C | P |
---|---|---|---|---|---|---|---|---|---|---|---|
18Ni300 | Balance | 18.2 | 9.0 | 5.0 | 0.6 | 0.3 | 0.1 | 0.05 | 0.04 | 0.01 | 0.01 |
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Cerezo, P.M.; Aguilera, J.A.; Garcia-Gonzalez, A.; Lopez-Crespo, P. Tomography of Laser Powder Bed Fusion Maraging Steel. Materials 2024, 17, 891. https://0-doi-org.brum.beds.ac.uk/10.3390/ma17040891
Cerezo PM, Aguilera JA, Garcia-Gonzalez A, Lopez-Crespo P. Tomography of Laser Powder Bed Fusion Maraging Steel. Materials. 2024; 17(4):891. https://0-doi-org.brum.beds.ac.uk/10.3390/ma17040891
Chicago/Turabian StyleCerezo, Pablo M., Jose A. Aguilera, Antonio Garcia-Gonzalez, and Pablo Lopez-Crespo. 2024. "Tomography of Laser Powder Bed Fusion Maraging Steel" Materials 17, no. 4: 891. https://0-doi-org.brum.beds.ac.uk/10.3390/ma17040891