| 表面纳米化对纯铜扩散焊接性能的影响 |
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| 引用本文： | 裴广玉,李东,李凯斌,刘东宇.表面纳米化对纯铜扩散焊接性能的影响[J].华南农业大学学报(社会科学版),2015,33(4). |
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| 作者姓名： | 裴广玉 李东 李凯斌 刘东宇 |
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| 作者单位： | 上海工程技术大学材料工程学院，上海201620 |
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| 基金项目： | 上海市自然科学基金(IIZR1414600)；上海市教委创新项目(IIY2214) |
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| 摘 要： | 为了提高纯铜扩散焊接性能，通过表面机械滚压技术( SMRT)，对纯铜试样进行表面纳米化处理，并在真空下对
纯铜母材和经表面机械滚压处理的纯铜试样分别进行扩散焊接试验，焊接压力10 MPa，保温l h，焊接温度为300℃、
400℃、500 qC。研究结果表明：经过SMRT纯铜表层晶粒达到纳米级别，纯铜试样焊接接头处的显微硬度高于母材试
样；同一温度下，SMRT铜焊接性能优于母材试样。
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| 关 键 词： | 纯铜 扩散焊接 表面机械滚压 表面纳米化 |
Performance of Copper Diffusion Welding after Surface Nano-Crystallization |
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| PEI Guangyu,LI Dong,LI Kaibin,LIU Dongyu.Performance of Copper Diffusion Welding after Surface Nano-Crystallization[J].Journal of South China Agricultural University:Social Science Edition,2015,33(4). |
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| Authors: | PEI Guangyu LI Dong LI Kaibin LIU Dongyu |
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| Institution: | School of Materials Engineering, Shanghai University of Engineering Science , shanghai 201620 , China |
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| Abstract: | To improve the diffusion welding properties of fine copper, the experiment was carried out on fine copper after
surface nano-crystallization treatment with Surface Mechanical Rolling Technology (SMRT) . And the tests of fine copper
base metal and copper samples treated by SMR were conducted in the vacuum. with welding pressure of 10 MPa. heat
preservation of I h and soldering temperature of 300 0C . 400 0C . 500 0C respectively. The results show that the surface
layer crystal grain of fine copper after SMRT reaches the nano level. and the micro-hardness of welded joints is higher
than the base metal samples. Under the same temperature. the diffusion welding properties of SMRT copper is
significantly improved. |
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| Keywords: | fine copper diffusion welding Surface Mechanical Rolling Treatment( SMRT ) surface nano-crystallization |
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