Corrosion behavior and life prediction of SAC305 solder joints in PVC fire smoke

IF 4.7 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Transactions of Nonferrous Metals Society of China Pub Date : 2025-02-01 DOI:10.1016/S1003-6326(24)66698-7

Meng-ke ZHAO, Jian-rui FENG, Qian LI, Shou-xiang LU, Jin LIN

引用次数: 0

Abstract

The corrosion behavior and life of Sn−3.0Ag−0.5Cu solder joints were investigated through fire smoke exposure experiments within the temperature range of 45−80 °C. The nonlinear Wiener process and Arrhenius equation were used to establish the probability distribution function and prediction model of the solder joint's average life and individual remaining useful life. The results indicate that solder joint resistance shows a nonlinear growth trend with time increasing. After 24 h, the solder joint transforms from spherical to rose-like shapes. Higher temperatures accelerate solder joint failure, and the relationship between failure time and temperature conforms to the Arrhenius equation. The predicted life of the model is in good agreement with experimental results, demonstrating the effectiveness and accuracy of the model.

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SAC305焊点在PVC火焰烟雾中的腐蚀行为及寿命预测

通过45 ~ 80℃的火烟暴露实验，研究了Sn−3.0Ag−0.5Cu焊点的腐蚀行为和寿命。采用非线性维纳过程和Arrhenius方程建立了焊点平均寿命和单个剩余使用寿命的概率分布函数和预测模型。结果表明，焊点电阻随时间的增加呈非线性增长趋势。24h后，焊点由球形变为玫瑰状。温度升高加速焊点失效，失效时间与温度的关系符合Arrhenius方程。模型的寿命预测值与实验结果吻合较好，证明了模型的有效性和准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transactions of Nonferrous Metals Society of China 工程技术-冶金工程

CiteScore

7.40

自引率

17.80%

发文量

8456

审稿时长

3.6 months

期刊介绍： The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.