| 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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| Affiliation: | 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 aftersurface nano-crystallization treatment with Surface Mechanical Rolling Technology (SMRT) . And the tests of fine copperbase metal and copper samples treated by SMR were conducted in the vacuum. with welding pressure of 10 MPa. heatpreservation of I h and soldering temperature of 300 0C . 400 0C . 500 0C respectively. The results show that the surfacelayer crystal grain of fine copper after SMRT reaches the nano level. and the micro-hardness of welded joints is higherthan the base metal samples. Under the same temperature. the diffusion welding properties of SMRT copper issignificantly improved. |
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| Keywords: | fine copper diffusion welding Surface Mechanical Rolling Treatment( SMRT ) surface nano-crystallization |
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