| Sn-Pb-RE钎料的塑性变形抗力研究 |
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| 引用本文： | 朱颖,康慧,曲平,方洪渊,钱乙余. Sn-Pb-RE钎料的塑性变形抗力研究[J]. 中国稀土学报, 1999, 17(2): 145-148 |
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| 作者姓名： | 朱颖 康慧 曲平 方洪渊 钱乙余 |
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| 作者单位： | [1]北京航空航天大学制造工程系 [2]哈尔滨工业大学材料科学工程学院 |
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| 摘 要： | 利用拉伸实验方法研究了室温下Ｓｎ－Ｐｂ－ＲＥ钎料的塑性变形抗力。钎料的变形抗力随稀土含量的增加而提高。稀土垢加入使钎料组织均匀细化，导致位垒硬化和多滑移硬化作用增强。同时，稀土存在晶界偏聚，牵制了晶界的运动，因此提高了钎料的变形抗力。
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| 关 键 词： | 稀土 塑性变形抗力 表面组装技术 SMT 钎料 钎焊 |
| 修稿时间： | 19980304 |
Study on Plastic Deformation Resistance of SnPbRE Solder |
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| Zhu Ying,Kang Hui,Qu Ping. Study on Plastic Deformation Resistance of SnPbRE Solder[J]. Journal of the Chinese Society of Rare Earths, 1999, 17(2): 145-148 |
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| Authors: | Zhu Ying Kang Hui Qu Ping |
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| Abstract: | The plastic deformation of solder joint depends on plastic deformation resistance of solder. The study on plastic deformation resistance of SnPbRE solder at room temperature shows that the plastic deformation resistance of SnPbRE solder enhances along with the increase of RE content. The microstructure investigation reveals that the addition of RE can make the microstructure of solder fine and homogenous, so that the barrier hardening and multisliding hardening can be enhanced. Moreover, RE on grain boundaries hinders grain boundary sliding. Therefore, the deformation resistance of solder enhances. However, since it is very hard, the intermetallic compounds of RE near fracture surface will cause intergranular cracks around it. |
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| Keywords: | Rare earths Plastic deformation resistance SnPbRE solder |
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