Abstract
This work demonstrates rapid solidification and precision machining to achieve 6061 aluminum alloys with extremely small surface roughness (2.05 nm), good tensile strength (325 MPa), and uniformly distributed coherent nanoprecipitates. The fundamental mechanisms are revealed by means of microstructural and nanomechanical characterization at multi-scales, together with atom probe tomography analysis. This work opens the way to manufacture metallic optics for astronomy, radar, and LED devices with unprecedented low surface roughness and sufficient mechanical strength.
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Acknowledgments
This work is supported by the Natural Science Foundation of Hunan Province through Grant No. 2022JJ20066 (Excellent Youth Foundation). All authors thank Dr. C. Guan from the National University of Defense Technology, China, for SPDT treatment of samples and Ms. Z. Zhang from Central South University for TEM operations, respectively.
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Liu, Z., Chen, T., Shu, R. et al. Hot-Isostatic Pressed Al Melt-Spun Ribbons with Tailored Microstructures and Mechanical Properties for Metallic Optics. Metall Mater Trans A (2024). https://doi.org/10.1007/s11661-024-07463-z
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DOI: https://doi.org/10.1007/s11661-024-07463-z