クリープ特性を基にしたはんだのクリープ疲労寿命評価法

概要

論文の詳細を見る
Torsional fatigue tests and creep tests were carried out on a 60Sn-40Pb solder. In both tests three temperatures (303〜333K) were used, and in the fatigue test five cycling frequencies (0.001〜5.0 Hz) were used. An evaluation method for the solder fatigue life under relatively high temperature or low cycling frequency was proposed from the test results, noting that the characteristics of fatigue under the above mentioned conditions were similar to the creep characteristics. Furthermore, this evaluation method was applied to the estimation of the crack initiation life of through-hole-type joints. By comparing the estimated values with the experimental ones, it was clarified that this method was valid for the assessment of the crack initiation life of solder joints.
社団法人日本機械学会の論文
1998-01-25