The microstructure evolution during fabricating UFG-Copper (Ultra Fine Grain) with SD-AARB (Severe Deformation-Asymmetrical Accumulative Roll-Bonding) method is studied on macro scale.

• 采用大变形异步叠轧的方法制备超细晶铜材,从宏观上研究异步叠轧组织变化过程。