SA-10-1(010) Creep and Creep Rupture of Sn-37Pb and Sn-95Pb Solders(Life Prediction of Solder)

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This paper studies creep and creep rupture properties of Sn-37Pb and Sn-95Pb solders. Creep and creep rupture tests were carried out using these solders at 313K, 353K and 398K to develop creep constitutive and rupture lifetime equations. Primary and tertiary creep stages were found in Sn-37Pb while primary, secondary and tertiary creep stages were found in Sn-95Pb. A creep constitutive equation was proposed as a function of stress and temperature. The proposed equation predicted the experimental creep strain within a factor of 1.25. A new equation for predicting creep rupture lifetime was also proposed. The equation predicted the experimental rupture lifetime within a factor of two. Creep rate was discussed in relation with the difference in melting temperature.
一般社団法人日本機械学会の論文
2001-06-03