Ar+ Ion Irradiation Response of LPBF AlSi10Mg Alloy in As-Built and KOBO-Processed Conditions
Abstract
:1. Introduction
2. Methodology
- punch speed 0.2 mm/s,
- the frequency of die oscillations was 5 Hz,
- the oscillation angle was ±8°.
- extrusion was carried out in one step with an extrusion ratio λ = 225 (604).
3. Results
3.1. Microstructure of Samples before Irradiation
3.2. Microstructure Evolution after Ar+ Irradiation
4. Discussion
5. Conclusions
- The as-built sample exhibited a microstructure composed of Al/Si cells approximately 500 nm in size, with an average grain size of about 3.3 μm. KOBO processing significantly modified the grain microstructure and Si phase morphology. The grain size was reduced to about 0.8 μm, and the cellular eutectic Si network was disrupted.
- After KOBO thermomechanical treatment, the frequency of the low-ΣCSL boundaries in the LPBF AlSi10Mg alloy increased from about 35% to 43%. The low-ΣCSL boundaries were randomly distributed within the alloy microstructure.
- Ar+ irradiation at a fluence of 5 × 1017 cm−2 caused the formation of a thick, porous layer with partial amorphization of phases in both samples. The as-built sample, with larger pores, showed lower radiation resistance. Additionally, irradiation-induced severe grain refinement beneath the porous layer and produced typical defects such as Ar bubbles, dislocations, and stacking faults in both samples.
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Snopiński, P.; Barlak, M.; Nowakowska-Langier, K. Ar+ Ion Irradiation Response of LPBF AlSi10Mg Alloy in As-Built and KOBO-Processed Conditions. Symmetry 2024, 16, 1158. https://doi.org/10.3390/sym16091158
Snopiński P, Barlak M, Nowakowska-Langier K. Ar+ Ion Irradiation Response of LPBF AlSi10Mg Alloy in As-Built and KOBO-Processed Conditions. Symmetry. 2024; 16(9):1158. https://doi.org/10.3390/sym16091158
Chicago/Turabian StyleSnopiński, Przemysław, Marek Barlak, and Katarzyna Nowakowska-Langier. 2024. "Ar+ Ion Irradiation Response of LPBF AlSi10Mg Alloy in As-Built and KOBO-Processed Conditions" Symmetry 16, no. 9: 1158. https://doi.org/10.3390/sym16091158