MATEC Web Conf.
Volume 300, 2019ICMFF12 - 12th International Conference on Multiaxial Fatigue and Fracture
|Number of page(s)||8|
|Published online||02 December 2019|
Evaluation of Non-proportional Multiaxial Fatigue Strength of Lead-free Solder with Elements Addition
Graduate School of Science and Engineering, Ritsumeikan University, Japan
2 College of Science and Engineering, Ritsumeikan University, Japan
* Corresponding author: firstname.lastname@example.org
The effect of element addition on creep and fatigue properties of Sn1.0Ag0.7Cu solder with addition of nickel, germanium and bismuth are reviewed. Element additions imporove creep properties although those deteriorate fatigue properties. From above results, necessity of non-proportional multiaxial fatigue tests are discussed. The load cell with high sensitivity was designed by making to detect small load during fatigue test was developed by making the strain detection part hollow circular. The inner diameter and the outer diameter of the load cell satisfying the condition that excessive strain does not occur regardless of high sensitivity was determined by strength calculation.
© The Authors, published by EDP Sciences, 2019
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