Effects of equal channel angular pressing on the strength and toughness of Al–Cu alloys |
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| Authors: | D R Fang Y Z Tian Q Q Duan S D Wu Z F Zhang N Q Zhao and J J Li |
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| Affiliation: | (1) Department of Materials Science and Engineering, Northeastern University at Qinhuangdao, 143 Taishan Road, Qinhuangdao, 066004, People’s Republic of China;(2) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, People’s Republic of China;(3) School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, People’s Republic of China |
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| Abstract: | Tensile and impact tests were performed on Al–0.63 wt%Cu and Al–3.9 wt%Cu alloys subjected to equal channel angular pressing
(ECAP) with different number of passes. Besides the tensile properties, data about the static toughness and the impact toughness
were obtained. The strength and the toughness of the Al–Cu alloys were ameliorated and upgraded to a high level collectively.
In addition, fracture surface observations show that the fracture behavior of the Al–Cu alloys changes from brittle mode to
ductile mode after multi-pass ECAP. |
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