石油化工高等学校学报

石油化工高等学校学报 ›› 2012, Vol. 25 ›› Issue (1): 66-70.DOI: 10.3969/j.issn.1006-396X.2012.01.014

• 化工机械 • 上一篇    下一篇

微量铅对Sn-9Zn钎料组织及性能的影响

吴敏   

  1. 辽宁石油化工大学机械工程学院
  • 收稿日期:2011-10-31 修回日期:1900-01-01 出版日期:2012-02-25 发布日期:2012-02-25
  • 作者简介:吴敏(1971-),男,辽宁兴城市,讲师,硕士
  • 基金资助:
    辽宁省教育厅科学研究计划资助项目(2008382;20060505)

Effect of Trace Pb on Microstructure and Property of Sn-9Zn Solder

  1. School of Mechanical Engineering, Liaoning Shihua University, Fushun Liaoning 113001,P.R.China
  • Received:2011-10-31 Revised:1900-01-01 Published:2012-02-25 Online:2012-02-25

摘要: 微量铅在目前的无铅工艺生产制程中广泛存在,并可对无铅钎料组织性能产生重要影响。运用X射线衍射仪、扫描电镜及电化学测试系统等仪器设备,研究微量铅对Sn-9Zn钎料组织性能影响。结果表明:当Pb质量分数为0.3%时,Sn-9Zn钎料中富Zn相明显细化,Pb固溶于钎料中;当Pb质量分数为0.8%时,钎料组织得到细化,Pb还以单质形式存在晶界处;钎料润湿性随Pb含量增加而得到改善,钎料显微硬度随Pb含量增加而增加,钎料腐蚀电位随Pb含量增加略有增大,但腐蚀电流密度却随Pb含量增加而明显减小。

关键词: 金属材料 , 锡合金 , 无铅钎料铅 , Sn-9Zn钎料 , 组织 , 性能

Abstract: Trace Pb existing in widespread lead-free soldering manufacturing Currently, may impact on microstructure and property of lead free solder. Effect of trace Pb on microstructure and property of Sn-9Zn solder was investigated by means of XRD,SEM and electrochemical testing system etc. The results show that Zn-rich phase in Sn-9Zn solder significantly refine and Pb is solube in the solder at Pb content of 0.3%; microstructure remarkablely is refine at Pb content of 0.8%, and Pb precipitate in grain boundaries as well; wettability and microhardness of the solder increase with Pb content increasing, corrosion potential rise a little with Pb content increasing, however, corrosion current density decrease significantly with increasing Pb content. 

Key words: Metallic material, Sn alloy, Lead free solder, Pb, Sn-9Zn solder, Microstructure, Property

引用本文

吴敏. 微量铅对Sn-9Zn钎料组织及性能的影响[J]. 石油化工高等学校学报, 2012, 25(1): 66-70.

WU Min. Effect of Trace Pb on Microstructure and Property of Sn-9Zn Solder[J]. Journal of Petrochemical Universities, 2012, 25(1): 66-70.

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