【摘要】 采用等通道角挤压变形和累积叠轧焊两种大塑性变形方法对1060纯铝进行了加工,研究分析了纯铝在加工后的微观组织和力学性能变化和规律。结果表明:在相同的累积变形条件下,ARB和ECAP都能实现材料的晶粒细化和力学性能改善的目的。但由于两种塑性加工方式细化晶粒的机理和加工工艺不同,所以晶粒细化程度和力学性能的改善程度有所差别。ARB法将晶粒最小可以细化到500nm左右,ECAP法能细化晶粒到大小约为1μm。更多还原

【Abstract】 1060 aluminum was processed by the Severe Plastic Deformation(SPD)way of ECAP(Equal Channel Angular Pressing)and ARB(accumulative roll-bonding).The microstructure and mechanical properties of processed 1060 aluminum were analyzed.The result shows that the grain of raw materials is refined and the mechanical properties are improved as the result of ECAP and ARB under the same condition.The extent of grain refining and mechanical properties improving is different due to the different mechanism of grain refinement.The grain size processed by ARB is near 500nm,and that is 1μm processed by ECAP.更多还原