Further Observation on Tin Whisker from Electroplated Sn-Mn Alloy  

作　　者：Wilcox G D 

机构地区：[1]Department of Materials,Loughborough University,LE11 4EQ,UK

出　　处：《稀有金属材料与工程》2012年第S1期280-282,共3页Rare Metal Materials and Engineering

基　　金：National Natural Science Foundations of China(50531060)

摘　　要：Tin whiskers from Sn-(0-49 wt%)Mn alloy electroplating on polished mild steel were examined with FEG-SEM with EDX.The raw materials were Hull Cell samples kept in an office ambient with different storage time,up to 240 h.It is found that,depending on Mn content and plating microstructure,Sn-Mn alloy shows various types of whiskering.Except for the whisker forest found previously in Sn-20Mn,there exists another in Sn-(1%-5%)Mn.The latter also has a very short incubation time,less than 4 h.Another interesting finding is that one type of whiskering with surface cap supports an established model.Tin whiskers from Sn-(0-49 wt%)Mn alloy electroplating on polished mild steel were examined with FEG-SEM with EDX.The raw materials were Hull Cell samples kept in an office ambient with different storage time,up to 240 h.It is found that,depending on Mn content and plating microstructure,Sn-Mn alloy shows various types of whiskering.Except for the whisker forest found previously in Sn-20Mn,there exists another in Sn-(1%-5%)Mn.The latter also has a very short incubation time,less than 4 h.Another interesting finding is that one type of whiskering with surface cap supports an established model.

关 键 词：TIN WHISKER microstructure ELECTROPLATING 

分 类 号：TG174.4[金属学及工艺—金属表面处理]