| 超塑性状态下Ti-6Al-4V钛合金扩散连接研究 |
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| 引用本文： | 林兆荣,张中元,黄卫东.超塑性状态下Ti-6Al-4V钛合金扩散连接研究[J].航空学报,1992,13(5):288-295. |
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| 作者姓名： | 林兆荣 张中元 黄卫东 |
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| 作者单位： | 南京航空学院508教研室 南京 210016 |
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| 摘 要： | 根据高温扩散与空洞闭合蠕变理论,对Ti-6Al-4V钛合金在超塑性状态下扩散连接进行理论分析,建立了数学模型,可作为预测工艺参数,诸如温度、压力、时间等对连接质量的影响和选择合适工艺参数的依据。理论分析与试验结果是吻合的。
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| 关 键 词： | 扩散连接 超塑性状态 Ti-6 Al-4V合金 |
| 收稿时间： | 1990-08-31 |
| 修稿时间： | 1991-04-01 |
AN INVESTIGATION OF DIFFUSION BONDING UNDER SUPERPLASTIC CONDITION FOR Ti-6Al-4V TITANIUM ALLOY |
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| Lin Zhao-rong,Zhang Zheng-yuan,Huang Wei-dong.AN INVESTIGATION OF DIFFUSION BONDING UNDER SUPERPLASTIC CONDITION FOR Ti-6Al-4V TITANIUM ALLOY[J].Acta Aeronautica et Astronautica Sinica,1992,13(5):288-295. |
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| Authors: | Lin Zhao-rong Zhang Zheng-yuan Huang Wei-dong |
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| Institution: | Faculty 508, Institute of Nanjing Aeronautical Institute, Nanjing, 210016 |
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| Abstract: | Based on current theories of diffusion and creep cavity Closure at hign temperatures, a theoretical analysis of diffusion bonding under superplastic condition for Ti-6 A1--1 V titanium alloy is carried oul. The diffusion bonding is mainly described us a two -stage process:1 The shrinkage process of cavities with shape change from elliptical to cylindrical:2 In the second stage, the radii of the cylindrical cavities are reduced and eliminated.In this paper, the mathematical model is established in order to predict the bonding quality which are affected by technological parameters, such as temperature, pressure, bonding time etc. Meanwhile the reasonable technological parameters are chosen from theoretical analysis. The theoretical analysis is in good agreement with experimental results. |
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| Keywords: | diffusion bonding superplastie condition Ti-6 Al-4 V alloy |
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