金属加工（热加工）Issue(8)：28-34,44,8.
Cf添加对Sn58Bi/Cu焊点弹性与蠕变性能的影响
Effect of Cf on the elastic and creep properties of Sn58Bi/Cu solder joints
摘要
Abstract
In order to improve the creep deformation resistance of Sn58Bi solder joints during service,Sn58Bi-xCf(x=0,0.02,0.04,and 0.06 wt％)composite solders are prepared by incorporating different mass fractions of carbon fiber(Cf)powders into Sn58Bi via mechanical stirring in this paper.Sn58Bi-xCf/Cu solder joints were prepared on T2 pure copper sheet as substrate by using a temperature-controlled heating platform.The microstructure,elastic work,elastic modulus,and creep behavior of Sn58Bi-xCf/Cu solder joints are characterized using optical microscopy(OM)and nanoindentation.Based on the experimental data,the influence of Cf addition on the microstructure and properties of Sn58Bi/Cu solder joints is systematically evaluated.The results reveal that the incorporation of Cf significantly refines the microstructure of Sn58Bi/Cu joints and enhances their resistance to elastic and creep deformation.It is also found that the relationship between Cf content and joint performance is not a strictly linear increase within the investigated range,and excessive Cf addition slightly deteriorates the joint properties.Among the tested compositions,the addition of 0.04wt％Cf yields the finest microstructural refinement,as well as the optimal resistance to elastic and creep deformation.关键词
Sn58Bi/焊点/弹性/蠕变Key words
Sn58Bi/solder joints/elastic/creep引用本文复制引用
刘祖臣,马芮鹏,孔祥霞,翟军军..Cf添加对Sn58Bi/Cu焊点弹性与蠕变性能的影响[J].金属加工（热加工）,2026,(8):28-34,44,8.基金项目
河北省自然科学基金面上项目(A2023409007) （A2023409007）
北华航天工业学院研究生创新资助项目(YKY-2025-80) （YKY-2025-80）
河北省高等学校科学研究项目(QN2023042). （QN2023042）
