| Sn-8Zn-3Bi-P无铅钎料微观组织及性能 |
| |
| 引用本文： | 付小琴,周健,孙扬善,薛烽.Sn-8Zn-3Bi-P无铅钎料微观组织及性能[J].东南大学学报(自然科学版),2006,36(5):831-835. |
| |
| 作者姓名： | 付小琴 周健 孙扬善 薛烽 |
| |
| 作者单位： | 东南大学材料科学与工程学院,南京,210096 |
| |
| 摘 要： | 研究了Sn-8Zn-3B i-xP钎料的抗氧化性、熔点、组织及力学性能.热重分析表明:P元素的加入显著降低了钎料熔体表面的氧化量;采用俄歇能谱分析氧化层的成分和厚度,发现含P的钎料表面形成的ZnO层厚度明显降低,约为80 nm;对合金进行差热分析发现少量P的加入并不改变钎料的熔点和熔程;P的加入对钎料合金的强度几乎没有影响,但却降低了合金的塑性,这是因为含P合金中有粗大的富Zn相形成,断口分析显示在Zn相与Sn相晶界上容易出现裂纹,从而导致钎料的塑性下降.
|
| 关 键 词： | 无铅钎料 磷 抗氧化性能 力学性能 |
| 文章编号： | 1001-0505（2006）05-0831-05 |
| 收稿时间： | 03 10 2006 12:00AM |
| 修稿时间： | 2006-03-10 |
Effect of phosphorus on microstructure and properties of Sn-8Zn-3Bi lead-free solder |
| |
| Fu Xiaoqin,Zhou Jian,Sun Yangshan,Xue Feng.Effect of phosphorus on microstructure and properties of Sn-8Zn-3Bi lead-free solder[J].Journal of Southeast University(Natural Science Edition),2006,36(5):831-835. |
| |
| Authors: | Fu Xiaoqin Zhou Jian Sun Yangshan Xue Feng |
| |
| Institution: | College of Materials Science and Engineering, Southeast University, Nanjing 210096, China |
| |
| Abstract: | The oxidation resistance,melting point,microstructures,and mechanical properties of Sn-8Zn-3Bi-xP solders were investigated.The results show that minute amount of phosphorus can significantly improve the oxidation resistance of Sn-8Zn-3Bi lead-free solders.Auger electron spectrometer(AES) analysis reveals that the depth of oxidation in Sn-8Zn-3Bi alloys can be reduced by adding a little phosphorus.With additional alloy element phosphorus,the depth of oxidation is about 80 nm.Small amount of phosphorus has no obvious influence on the melting point and the pasty range of Sn-8Zn-3Bi solders.The primary Zn phase appears in the matrix of P-contained alloys.Cracks are apt to occur along the interfaces of the primary Zn phase and Sn phase,which causes deterioration of elongation of the alloys. |
| |
| Keywords: | lead-free solder phosphorus oxidation resistance mechanical property |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
