Low cycle fatigue lives of Sn-37Pb and Sn-3.5Ag solders at low temperatures

被引:5
|
作者
Hiyoshi, Noritake [1 ]
Katoh, Akihisa [2 ]
Sakane, Masao [3 ]
Tsukada, Yutaka [4 ]
机构
[1] Dept. of Mech. Eng., Ishikawa National College of Tech., Kahoku-gun
[2] Ishikawa National College of Tech., Kahoku-gun
[3] Dept of Mech. Eng., Ritsumeikan Univ., Noji-higashi
[4] KYOCERA SLC Technologies Corporation, Ichimiyake
关键词
Cracks; Lead-free Solder; Life evaluation; Low cycle fatigue; Low temperature; Stress-strain relationship;
D O I
10.2472/jsms.58.155
中图分类号
学科分类号
摘要
This paper describes low cycle fatigue lives of Sn-37Pb and Sn-3.5Ag solders at low temperatures. Push-pull low cycle fatigue tests were carried out at 253K and 273K to study the temperature effect on low cycle fatigue life. Plastic strain range was a suitable parameter for correlating the low cycle fatigue lives for the Sn-37Pb solder at the four temperatures but it was not for the Sn-3.5Ag solder. Strain energy parameter which is defined as the product of strain and stress ranges was a suitable parameter for the Sn-3.5Ag solder. Application of universal slope method was also discussed for predicting the low cycle fatigue lives of Sn-37Pb and Sn-3.5Ag solders. © 2009 The Society of Materials Science, Japan.
引用
收藏
页码:155 / 161
页数:6
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