Impact properties of Al-Cu alloy subjected to equal channel angular pressing

被引：0
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作者：
School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China [1 ]
不详 [2 ]
机构：
来源：
Jinshu Xuebao | 2007年 / 12卷 / 1251-1255期
关键词：
Casting - Equal channel angular pressing - Fracture toughness - Grain refinement - Tensile strength;
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摘要：
Impact properties of the casting Al-0.63%Cu and Al-3.9%Cu (mass fraction) alloys subjected to equal channel angular pressing (ECAP) were investigated. It is found that the impact properties of Al-0.63%Cu alloy were enhanced after ECAP, while for Al-3.9%Cu alloy, its impact toughness was not improved due to more θ (Al2Cu) phases, although the tensile strength increased because of grain refinement and dispersive precipitation of the second-phase. It is shown that the impact toughness is dependent on the static toughness of the Al-Cu alloys.
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