| 稀土镧对Sn3．5Ag0．5Cu钎料组织性能的影响 |
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| 引用本文： | 吴敏.稀土镧对Sn3．5Ag0．5Cu钎料组织性能的影响[J].金属功能材料,2009,16(2):34-36. |
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| 作者姓名： | 吴敏 |
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| 作者单位： | 辽宁石油化工大学,机械工程学院,辽宁,抚顺,113001 |
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| 基金项目： | 辽宁省教育厅科学研究计划 |
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| 摘 要： | 运用莱卡显微镜、显微硬度计、拉伸试验机等仪器设备，研究添加不同含量稀土元素La对Sn3．5Ag0．5Cu钎料及其与Cu基体焊合后微观组织及性能影响。结果表明：添加不同含量的稀土La均能使Sn3．5Ag0．5Cu钎料及其与Cu基体焊合后组织与性能得到改善，其中以La含量达到0．05％时为最优，显微硬度及剪切强度分别提高14％和10．7％；基于热力学理论计算结果表明稀土元素La具有“亲Sn”倾向，可减小钎料中锡基化合物界面锡的活度，降低IMC的长大驱动力。
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| 关 键 词： | 金属材料 Sn3.5Ag0.5Cu钎料 稀土La 热力学 |
Effect of La on Microstructure and Property of Sn3.5Ag0.5Cu Solder |
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| WU Min.Effect of La on Microstructure and Property of Sn3.5Ag0.5Cu Solder[J].Metallic Functional Materials,2009,16(2):34-36. |
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| Authors: | WU Min |
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| Affiliation: | School of Mechanical Engineering;Liaoning Shihua University;Fushun 113001;Lianning;China |
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| Abstract: | Effect of La on microstructure and property of Sn3.5Ag0.5Cu solder adding various contents of rare earth elements was investigated by means of Leica,micro-hardness tester and tensile testing machine etc. The results show that La can remarkably refine microstructure of the Sn3.5Ag0.5Cu solder and IMC between solder and Cu substrate,enhances its mechanical property , especially La at 0.05% in the lead-free solder. Furthermore, the material thermodynamics calculating results show that La has higher affinity fo... |
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| Keywords: | metal materials Sn3 5Ag0 5Cu solder La thermodynamics |
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