| 无铅焊锡材料的动态力学性能 |
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| 引用本文： | 秦飞,陈娜,胡时胜.无铅焊锡材料的动态力学性能[J].北京工业大学学报,2009,35(8):1009-1013. |
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| 作者姓名： | 秦飞 陈娜 胡时胜 |
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| 作者单位： | 北京工业大学机械工程与应用电子技术学院,北京,100124;中国科学技术大学工程科学学院,合肥,230026 |
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| 基金项目： | 国家自然科学基金资助项目(10572010);;北京市教委科技发展科技项目(KM200610005013);;北京市先进制造技术重点实验室开放课题资助项目(102KB00732) |
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| 摘 要： | 利用分离式霍普金森拉压杆技术分别对63Sn37Pb、96.5Sn3.5Ag以及96.5Sn3.0Ag0.5Cu在600、1200以及2200 s-1应变率下的拉伸和压缩动态力学性能进行了测量,得到了不同应变率下的应力应变曲线.结果表明:3种材料均具有明显的应变率效应,其中,96.5Sn3.5Ag对应变率较为敏感;在相同应变率下96.5Sn3.0Ag0.5Cu呈现出最大的屈服应力和抗拉强度.给出了2种无铅焊料抗拉强度、失效点应变与应变率之间的拟合关系.
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| 关 键 词： | 分离式霍普金森拉压杆 应变率 无铅焊料 动态力学性能 |
Dynamic Mechanical Properties of Lead-free Solders |
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| QIN Fei,CHEN Na,HU Shi-sheng.Dynamic Mechanical Properties of Lead-free Solders[J].Journal of Beijing Polytechnic University,2009,35(8):1009-1013. |
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| Authors: | QIN Fei CHEN Na HU Shi-sheng |
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| Affiliation: | 1.College of Mechanical Engineering and Applied Electronics Technology;Beijing University of Technology;Beijing 100124;China;2.School of Engineering Science;University of Science and Technology of China;Hefei 230026;China |
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| Abstract: | The dynamic mechanical properties of 63Sn37Pb、96.5Sn3.5Ag and 96.5Sn3.0Ag0.5Cu have been investigated at high strain rate by using the split Hopkinson pressure/tensile bar technique.Stress-strain curves of the three materials were obtained at strain rates,ranging from 600 s-1 to 2 200 s-1.The experimental results show that all the three materials are strongly strain rate dependent,of which 96.5Sn3.5Ag is relative more sensitive to strain rate,while at the same strain rate 96.5Sn3.0Ag0.5Cu has the greatest yield and ultimate tensile stresses. |
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| Keywords: | split Hopkinson pressure/tensile bar strain rate lead-free solders dynamic mechanical properties |
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