| 低真空条件下铝基复合材料扩散焊接工艺 |
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| 引用本文： | 高振坤,刘黎明.低真空条件下铝基复合材料扩散焊接工艺[J].焊接学报,2005,26(5):73-76,80. |
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| 作者姓名： | 高振坤 刘黎明 |
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| 作者单位： | 大连理工大学,材料工程系,辽宁,大连,116024;哈尔滨工业大学金属精密热加工国家级重点实验室,哈尔滨,150001;大连理工大学,材料工程系,辽宁,大连,116024;哈尔滨工业大学金属精密热加工国家级重点实验室,哈尔滨,150001 |
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| 摘 要： | 以Al2O3p/6061Al铝基复台材科为对象．研究了在低真空条件下的直接扩散焊接和6061Al铝箔作为中间层的扩散焊接工艺。分析了焊接温度．保温时间与不同焊接工艺所得接头微观组织及强度的关系。同时．分析了低真空度和夹具对接头性能的影响。试验结果表明．两种焊接工艺所得接头强度随温度变化的规律以600℃和640℃为界分为三个阶段．并且随保温时间的延长有所提高。在较高的温度下．压力和液态金属的作用促使氧化膜破碎，有利于接头强度的提高。
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| 关 键 词： | 铝基复合材料 直接扩散焊接 中间层扩散焊接 |
| 文章编号： | 0253-360X(2005)05-73-05 |
| 收稿时间： | 2004/6/2 0:00:00 |
Diffusion welding process of aluminum matrix composite in low vacuum environment |
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| GAO Zhen-kun and LIU Li-ming.Diffusion welding process of aluminum matrix composite in low vacuum environment[J].Transactions of The China Welding Institution,2005,26(5):73-76,80. |
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| Authors: | GAO Zhen-kun and LIU Li-ming |
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| Affiliation: | Department of Materials Engineering, Dalian University of Technology, Liaoning Dalian 116024, China;National Key Laboratory For Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, China and Department of Materials Engineering, Dalian University of Technology, Liaoning Dalian 116024, China;National Key Laboratory For Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The characteristics and mechanism of welding Al_2O_(3p)/6061aluminum matrix composite with direct diffusion welding and interlayer diffusion welding in low vacuum environment was investigated,and effects of temperature,holding time and other parameters on the performance of welded joints were analyzed.The results showed that there were three stages of the transform of joint strength with different temperature.At the longer holding time the higher strength could be gained.And at higher temperature,the oxide film was crumbled by pressure and liquid metal,and this improved the quality of welded joint. |
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| Keywords: | aluminum matrix composite direct diffusion welding interlayer diffusion welding |
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