具有定制微结构和机械性能的热静压铝熔融纺丝带，用于金属光学器件

Metallurgical and Materials Transactions A Pub Date : 2024-06-19 DOI:10.1007/s11661-024-07463-z

Zhilin Liu, Taili Chen, Ruiying Shu, Jingya Wang, Gang Sha, Javier Llorca

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摘要

这项研究通过快速凝固和精密加工实现了具有极小表面粗糙度（2.05 nm）、良好抗拉强度（325 MPa）和均匀分布的相干纳米沉淀物的 6061 铝合金。通过多尺度微观结构和纳米力学表征以及原子探针断层扫描分析，揭示了其基本机制。这项工作为制造具有前所未有的低表面粗糙度和足够机械强度的天文学、雷达和 LED 设备用金属光学器件开辟了道路。

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

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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Metallurgical and Materials Transactions A

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