己二酸和NaCl对SAC 305钎料合金电化学迁移行为耦合效应的高通量研究

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-08-18 DOI:10.1016/j.corsci.2025.113264

Shiyao Du , Dongfang Jia , Lingwei Ma , Dawei Zhang

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引用次数: 0

摘要

利用自行设计的高通量制备和电化学测试平台，研究了己二酸和NaCl对印刷电路板用SAC305焊料合金电化学迁移的耦合效应。1000 ppm NaCl对电化学迁移过程中阳极溶解和离子迁移步骤的促进作用显著提高了SAC305钎料合金枝晶形成概率（Pdendrite）。在1000 ppm的己二酸中，低枝晶的形成是由于复合沉淀的形成增强了对离子迁移步骤的抵抗力。在1000 ppm NaCl中加入1 ppm的自二酸，由于氢氧化物和络合析出相的共同形成，可以有效地减少枝晶，而增加自二酸浓度（从10 ppm增加到1000 ppm），由于氢氧化物析出相在阴极处转变为枝晶源，反而增加了枝晶。

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High-throughput investigation of the coupling effect between adipic acid and NaCl on electrochemical migration behavior of SAC 305 solder alloy

The coupling effect of adipic acid and NaCl on electrochemical migration (ECM) of SAC305 solder alloy for printed circuit boards was studied using a self-designed high-throughput preparation and electrochemical test platform. The promotion effect of 1000 ppm NaCl on anodic dissolution and ion migration steps in the electrochemical migration substantially increased the dendrite formation probability (P_dendrite) of SAC305 solder alloy. The low P_dendrite in 1000 ppm adipic acid was attributed to the enhanced resistance to ion migration step by the formation of complex precipitates. Adding 1 ppm adipic acid into 1000 ppm NaCl could effectively decrease P_dendrite due to the co-formation of hydroxide and complex precipitates, while increasing adipic acid concentration (from 10 ppm to 1000 ppm) instead raised P_dendrite because hydroxide precipitates could transform into dendrite source at the cathode.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.