| 时效制度对Al-Cu-Mg-Ag-Zr合金组织和性能的影响 |
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| 引用本文： | 张建波,张永安,朱宝宏,王锋,李志辉,李锡武,熊柏青.时效制度对Al-Cu-Mg-Ag-Zr合金组织和性能的影响[J].中国有色金属学报,2011,21(6). |
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| 作者姓名： | 张建波 张永安 朱宝宏 王锋 李志辉 李锡武 熊柏青 |
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| 作者单位： | 北京有色金属研究总院有色金属制备加工国家重点实验室,北京,100088 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用硬度、电导率、拉伸性能、撕裂性能等性能测试和差示扫描量热(DSC)、透射电镜(TEM)等分析方法研究单级时效和多级断续时效对高Cu/Mg比Al-Cu-Mg-Ag-Zr合金组织和性能的影响.结果表明与T6态合金相比,多级断续时效处理在保持合金强度、硬度和电导率同时,显著提高合金的断裂韧性；160℃单级时效过程中,Ω和θ′相同时析出；断续时效第一级和第三级时效的主要析出相与单级时效的类似,第二级低温时效过程中,θ′相明显析出,未出现明显的Ω相析出特征.
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| 关 键 词： | 铝合金 多级断续时效 断裂韧性 析出相 |
Effect of ageing condition on microstructure and properties of Al-Cu-Mg-Ag-Zr alloy |
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| ZHANG Jian-bo,ZHANG Yong-an,ZHU Bao-hong,WANG Feng,LI Zhi-hui,LI Xi-wu,XIONG Bai-qing.Effect of ageing condition on microstructure and properties of Al-Cu-Mg-Ag-Zr alloy[J].The Chinese Journal of Nonferrous Metals,2011,21(6). |
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| Authors: | ZHANG Jian-bo ZHANG Yong-an ZHU Bao-hong WANG Feng LI Zhi-hui LI Xi-wu XIONG Bai-qing |
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| Affiliation: | ZHANG Jian-bo,ZHANG Yong-an,ZHU Bao-hong,WANG Feng,LI Zhi-hui,LI Xi-wu,XIONG Bai-qing (State Key Laboratory of Nonferrous Metals and Processes,General Research Institute for Nonferrous Metals,Beijing 100088,China) |
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| Abstract: | Hardness,electrical conductivity,tensile,tear test and differential scanning calorimetry(DSC),transmission electron microscopy were used to investigate the effect of single ageing and multi-step ageing process on the microstructure and properties of an Al-Cu-Mg-Ag-Zr alloy with high Cu/Mg ratio.The results show that comparing with the alloy at T6 condition,the hardness,strength and electrical conductivity of the alloy after multi-step ageing keeps unvaried,while the fracture toughness increases significantl... |
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| Keywords: | aluminum alloys multi-step ageing fracture toughness precipitates |
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