| 正火处理对Cu/Al爆炸焊接板显微结构及力学性能的影响 |
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| 引用本文： | 周国安,马宏昊,沈兆武,杨明,陈佩圆. 正火处理对Cu/Al爆炸焊接板显微结构及力学性能的影响[J]. 焊接学报, 2019, 40(6): 46-51. DOI: 10.12073/j.hjxb.2019400153 |
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| 作者姓名： | 周国安 马宏昊 沈兆武 杨明 陈佩圆 |
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| 作者单位： | 中国科学技术大学 中国科学院材料力学行为和设计重点试验室,合肥,230027;中国科学技术大学 中国科学院材料力学行为和设计重点试验室,合肥 230027;中国科学技术大学 火灾科学国家重点试验室,合肥 230027;安徽理工大学,淮南,232001 |
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| 基金项目： | 国家自然科学基金资助项目（51674229，51874267）；中央高校基本科研业务费专项资金：智能防护材料力学行为研究（WK2480000002） |
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| 摘 要： | 采用爆炸焊接技术制备出以T2紫铜为覆板、1060工业纯铝为基板的T2/1060层状复合板.300℃正火处理12，24，36，48 h后，对复合板结合界面的微观结构及各项力学性能进行了测试与分析.结果表明，T2/1060爆炸焊接板焊接质量良好，结合界面出现规则的、幅值/宽度分别约为35 μm/200 μm的波形结合.正火处理48 h后，两种元素在结合界面附近互相扩散明显，其扩散层的厚度、均匀程度有明显的提高；力学性能方面，试样的显微硬度、抗拉强度明显下降（分别从215 HV，255.7 MPa降为170 HV，228.8 MPa），而延展性有明显提升（屈服应变由3.64%变为22.4%）.
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| 关 键 词： | 正火处理 爆炸焊接 铜铝合金 显微结构 力学性能 |
| 收稿时间： | 2018-04-10 |
Influence of normalizing on microstructure and mechanical properties of Cu/Al explosive welded plate |
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| ZHOU Guoan,MA Honghao,SHEN Zhaowu,YANG Ming and CHEN Peiyuan. Influence of normalizing on microstructure and mechanical properties of Cu/Al explosive welded plate[J]. Transactions of The China Welding Institution, 2019, 40(6): 46-51. DOI: 10.12073/j.hjxb.2019400153 |
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| Authors: | ZHOU Guoan MA Honghao SHEN Zhaowu YANG Ming CHEN Peiyuan |
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| Affiliation: | 1.CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, China2.CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, China;State Key Laboratory of Fire Science, University of Science and Technology of China, Heifei 230027, China3.Anhui University of Science and Technology, Huainan 232001, China |
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| Abstract: | The copper-T2/aluminum-1060 composite plate is fabricated by explosive welding, using the flying plate of copper-T2 and the base plate of aluminum-1060. After normalizing at 300℃ in intervals, i.e., 12, 24, 36, 48 h for different time, the microstructure, diffusion layers and different mechanical properties of samples were observed and tested. Our results show that the copper-T2/aluminum-1060 alloy composite can be well jointed via explosive welding method, and a typical metal/metal wavy interface, having a period of 200 μm at a relative constant amplitude of about 35 μm, is revealed. In addition, normalizing treatment has a remark contribution to the increase of diffusion layer's thickness. The longer heat treatment time is, the thicker diffusion layers are. With respect to the influence of normalizing on samples' mechanical properties, we find that after a 48-hour heat treatment, the micro-hardness, tensile strength and elongation change from 215 HV, 255.7 MPa, 3.64% to 170 HV, 228.8 MPa, 22.4%, respectively. |
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| Keywords: | normalizing treatment explosive welding Cu/Al composite microstructure mechanical properties |
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