| Zr和Mn元素微合金化增强耐高温铝铜合金的热稳定性和力学性能 |
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| 引用本文： | 孙腾腾,耿继伟,卞泽宇,吴一,汪明亮,陈东,马乃恒,王浩伟. Zr和Mn元素微合金化增强耐高温铝铜合金的热稳定性和力学性能[J]. 中国有色金属学会会刊, 2022, 32(1): 64-78. DOI: 10.1016/S1003-6326(21)65778-3 |
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| 作者姓名： | 孙腾腾 耿继伟 卞泽宇 吴一 汪明亮 陈东 马乃恒 王浩伟 |
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| 作者单位： | 上海交通大学材料科学与工程学院;上海交通大学金属基复合材料国家重点实验室;安徽省铝基复合材料工程研究中心 |
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| 基金项目： | financial supports from the National Natural Science Foundation of China(No.52071207);the China Postdoctoral Science Foundation(Nos.2019TQ0193,2019M661497);the National Key Research and Development Program of China(No.2018YFB1106302);Anhui Provincial Engineering Research Center of Aluminum Matrix Composites,China(No.2017WAMC002)。 |
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| 摘 要： | 系统研究Al?5％Cu(AC)和Al?5％Cu?0.2％Mn?0.2Zr％(ACMZ)合金在温度为573～673 K的高温热稳定性和力学性能.结果表明,微合金化添加Zr和Mn元素对573 K主要强化相θ′相的稳定起到至关重要的作用.同时,高温拉伸结果表明,573 K热暴露200 h后,ACMZ合金强度为(88.6±8....
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| 关 键 词： | 铝铜合金 微合金化 热稳定性 析出相演变 高温力学性能 |
| 收稿时间： | 2021-01-13 |
Enhanced thermal stability and mechanical properties of high-temperature resistant Al-Cu alloy with Zr and Mn micro-alloying |
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| Teng-teng SUN,Ji-wei GENG,Ze-yu BIAN,Yi WU,Ming-liang WANG,Dong CHEN,Nai-heng MA,Hao-wei WANG. Enhanced thermal stability and mechanical properties of high-temperature resistant Al-Cu alloy with Zr and Mn micro-alloying[J]. Transactions of Nonferrous Metals Society of China, 2022, 32(1): 64-78. DOI: 10.1016/S1003-6326(21)65778-3 |
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| Authors: | Teng-teng SUN Ji-wei GENG Ze-yu BIAN Yi WU Ming-liang WANG Dong CHEN Nai-heng MA Hao-wei WANG |
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| Affiliation: | (School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China;Anhui Aluminum Matrix Composites Engineering Research Centre,Huaibei 235099,China) |
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| Abstract: | The high temperature (HT) thermal stability and mechanical properties of Al?5%Cu (AC) and Al?5%Cu?0.2%Mn?0.2Zr% (ACMZ) alloys from 573 to 673 K were systematically studied. The results displayed that micro-alloying additions of Zr and Mn elements have presented a significant role in stabilizing the main strengthening metastable θ′ precipitates at a temperature as high as 573 K. Simultaneously, the HT tensile test demonstrated that ACMZ alloy retained their strength of (88.6±8.8) MPa, which was much higher than that of AC alloy ((32.5±0.8) MPa) after the thermal exposure at 573 K for 200 h. Finally, the underlying mechanisms of strength and ductility enhancement mechanism of the ACMZ alloy at HT were discussed in detail. |
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| Keywords: | Al-Cu alloy micro-alloying thermal stability precipitate evolution high-temperature mechanical properties |
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