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金属学报  2007, Vol. 43 Issue (12): 1251-1255     
  论文 本期目录 | 过刊浏览 |
等通道转角挤压Al-Cu合金的冲击性能
房大然;段启强;黄崇湘;吴世丁;张哲峰;李家俊;赵乃勤
中科院金属所
Impact properties of Al-Cu alloy subjected to equal channel angular pressing
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中科院金属所
引用本文:

房大然; 段启强; 黄崇湘; 吴世丁; 张哲峰; 李家俊; 赵乃勤 . 等通道转角挤压Al-Cu合金的冲击性能[J]. 金属学报, 2007, 43(12): 1251-1255 .

全文: PDF(1120 KB)  
摘要: 对铸态Al-0.63%Cu和Al-3.9%Cu(质量分数)合金进行等通道转角挤压处理, 研究了Al-Cu合金冲击性能的变化. 结果表明, 等通道转角挤压增强了Al-0.63%Cu合金的冲击性能; 而对于Al-3.9%Cu合金, 虽然晶粒细化和第二相的弥散分布使其强度增加, 但较多的第二相θ (Al2Cu)未提高其冲击性能. 该合金的冲击吸收功与其静力韧度有关.
关键词 Al-Cu合金等通道转角挤压冲击性能    
Abstract:Impact properties of casting Al-0.63wt.%Cu and Al-3.9wt.%Cu alloys subjected to equal channel angular pressing (ECAP) were investigated. It is found that the impact properties of Al-0.63wt.%Cu alloy were enhanced after ECAP. While for Al-3.9wt.%Cu alloy, its impact toughness was not improved, although the tensile strength increased as a result of grain refinement and second-phase dispersion. It is shown that the impact toughness is dependent on the static toughness of the Al-Cu alloys.
Key wordsAl-Cu alloy    equal channel angular pressing (ECAP)    impact properties    static toughness
收稿日期: 2007-04-16     
ZTFLH:  TG146.2  
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