| 等温时效中稀土Er对Sn-3.8Ag-0.7Cu无铅钎料显微组织演化的影响 |
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| 引用本文： | 郝虎,史耀武,夏志东,雷永平.等温时效中稀土Er对Sn-3.8Ag-0.7Cu无铅钎料显微组织演化的影响[J].稀有金属材料与工程,2008,37(11). |
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| 作者姓名： | 郝虎 史耀武 夏志东 雷永平 |
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| 作者单位： | 1. 北京工业大学材料科学与工程学院,北京,100022
2. 北京工业大学,北京,100022 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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| 摘 要： | 系统研究了等温时效中添加微量稀土Er对Sn-3.8Ag-0.7Cu钎料合金显微组织演化规律的影响.结果表明,Er对Sn-3.8Ag-0.7Cu钎料显微组织及等温时效过程中显微组织的演化产生了重要影响.在钎焊过程中,Er有效地细化了钎料组织,改变了钎料内部Cu-Sn金属间化合物的形态、尺寸及分布情况.在等温时效过程中,钎料内部生成的ErSn3金属间化合物为组织的再结晶过程提供了大量的形核质点,有效避免了再结晶组织的粗化及裂纹的产生和扩展.
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| 关 键 词： | 等温时效 无铅钎料 SnAgCu合金 稀土Er |
Effect of Rare Earth Er on the Microstructure Evolution for Sn-3.8Ag-0.7Cu Lead-Free Solder Alloy during Isothermal Aging |
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| Hao Hu,Shi Yaowu,Xia Zhidong,Lei Yongping.Effect of Rare Earth Er on the Microstructure Evolution for Sn-3.8Ag-0.7Cu Lead-Free Solder Alloy during Isothermal Aging[J].Rare Metal Materials and Engineering,2008,37(11). |
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| Authors: | Hao Hu Shi Yaowu Xia Zhidong Lei Yongping |
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| Affiliation: | Hao Hu,Shi Yaowu,Xia Zhidong,Lei Yongping (Beijing University of Technology,Beijing 100022,China) |
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| Abstract: | In the present paper the effect of trace amounts of rare earth element Er on the microstructure evolution for the Sn-3.8Ag-0.7Cu lead-free solder alloy has been systematically investigated.The results indicate that rare earth Er has an important effect on the microstructure of Sn-3.8Ag-0.7Cu solder alloy in soldering,and also has a significant effect on the microstructure evolution during isothermal aging.With addition of rare earth Er,the microstructure of Sn-3.8Ag-0.7Cu has been effectively refined and th... |
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| Keywords: | intermetallic compound(IMC) lead-free solder isothermal aging solder joint |
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