Precipitates studies in ultrafine-grained Al alloys with enhanced strength and conductivity

7th International Conference on Nanomaterials by Severe Plastic Deformation

Sitdikov, V.D.^1,2 ; Murashkin, M.Yu.^1,2 ; Valiev, R.Z.^1,2

Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa

450000, Russia^1

Laboratory for Mechanics of Bulk Nanomaterials, Saint Petersburg State University, Saint Petersburg

198504, Russia^2

关键词: Al-Mg-Si alloys;    Aluminum conductors;    Dynamic strain aging;    High pressure torsions;    Nano-sized particles;    Temperature range;    Ultra-fine-grained;    X-ray phase analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/194/1/012034/pdf
DOI  :  10.1088/1757-899X/194/1/012034

来源: IOP

【 摘 要 】

The paper analyzes precipitation of nanosized particles in dynamically aged Al-Mg-Si alloy subjected to high pressure torsion in the temperature range from 25°C to 230°C. Precipitate types are identified and quantified within the frames of the modified X-ray phase analysis (XPA) technique. The generality and difference in the mechanisms and kinetics of precipitation during artificial and dynamic strain aging are analyzed, which opens new ways to further increase properties in promising aluminum conductors.