| 1420铝锂合金扩散焊工艺及中间层材料对接头性能的影响 |
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| 引用本文： | 陈文华,秦展琰,沈以赴.1420铝锂合金扩散焊工艺及中间层材料对接头性能的影响[J].焊接学报,2005,26(10):101-104. |
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| 作者姓名： | 陈文华 秦展琰 沈以赴 |
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| 作者单位： | 南京航空航天大学,材料科学与技术学院,南京,210016 |
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| 摘 要： | 研究了1420铝锂合金在一定工艺条件下，添加中间层金属进行真空扩散焊接的可行性，通过对接头显微组织、断口形貌、显微硬度和成分的测试与分析，发现在一定的工艺条件下，扩散焊接接头处原子扩散充分，形成了良好的冶金结合；采用铜中间层金属可以获得组织均匀的焊接接头；采用镍中间层能使接头处原子通过相互扩散形成金属间化合物强化相，可适当提高接头强度。
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| 关 键 词： | 1420铝锂合金 扩散焊 中间层 |
| 文章编号： | 0253-360X（2005）10-101-04 |
| 收稿时间： | 07 29 2005 12:00AM |
| 修稿时间： | 2005-07-29 |
Effect of process parameters and interlayer on properties of 1420 Al-Li alloy diffusion bonded joint |
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| CHEN Wen-hu,QIN Zhan-yan and SHEN Yi-fu.Effect of process parameters and interlayer on properties of 1420 Al-Li alloy diffusion bonded joint[J].Transactions of The China Welding Institution,2005,26(10):101-104. |
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| Authors: | CHEN Wen-hu QIN Zhan-yan and SHEN Yi-fu |
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| Affiliation: | College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China,College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China and College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | The feasibility of diffusion bonding of 1420 Al-Li alloy under certain technical conditions was investigated in this paper.The microstructure,fracture morphology and microhardness of the joints were studied.The results show that the excellent metallurgical bonding can be obtained through the sufficient diffusion of atoms near the joint boundaries by using the reasonable processing parameters.The welded joint with homogenous microstructures can be obtained by using the copper as the interlayer material.When the nickel is used as interlayer material,the intermetallic compounds are formed by diffusion,which can improve the strength of the joints. |
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| Keywords: | 1420Al-Li alloy diffusion bonding interlayer |
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