Hot-Isostatic Pressed Al Melt-Spun Ribbons with Tailored Microstructures and Mechanical Properties for Metallic Optics
摘要
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.
Graphical abstract