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Synergistic control of multiscale microstructure and ultra-precision machining performance in 6061 Al alloys via cryogenic processing
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DOI:10.1016/j.matchar.2026.116896.png)
Abstract
En 中文
• A synergistic strategy combining alloy purification and cryogenic processing is proposed. • The effects of second-phase particles and grain heterogeneity on SPDT surface formation are revealed. • Cryo-DA produces a uniform nanoscale subgrain structure (∼300 nm) by suppressing recrystallization. • High-purity 6061 Al achieves an ultralow surface roughness of ∼1.8 nm after SPDT, reduced by over 50%.
Keywords:
6061 Al alloy
Cryogenic deformation
Microstructure
Process route
Single-point diamond turning
Journal
IF:
5.5
Papers:
1.1W
Citations:
3.4W
