Coupling effect of adipic acid and Cl- on anodic dissolution of SAC305 solder alloy for printed circuit boards

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

Corrosion Science Pub Date : 2025-05-05 DOI:10.1016/j.corsci.2025.112976

Shiyao Du , Dongfang Jia , Xin Guo , Jinke Wang , Zhibin Chen , Lingwei Ma , Dawei Zhang

引用次数: 0

Abstract

The coupling effect of adipic acid and Cl^- on the corrosion of SAC305 solder alloy is systematically investigated. Electrochemical measurements prove that Cl^- could completely destroy the protectiveness of adipic acid and accelerate metal corrosion. Morphology characterizations and XPS analyses verify that the amount of adsorbed adipic acid on the metal surface is largely reduced due to competitive adsorption of Cl^-. TEM and Mott-Schottky tests further reveal that the defect density of the oxide film developed in Cl^- environment is three times higher than that in adipic acid, which is responsible for the faster anodic dissolution.

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己二酸与Cl-耦合对印刷电路板用SAC305焊料合金阳极溶解的影响

系统地研究了己二酸与Cl-的耦合作用对SAC305钎料合金腐蚀的影响。电化学测试证明Cl-能完全破坏己二酸的保护作用，加速金属的腐蚀。形貌表征和XPS分析证实，由于Cl-的竞争性吸附，金属表面吸附己二酸的量大大减少。TEM和Mott-Schottky测试进一步表明，在Cl-环境下形成的氧化膜缺陷密度比在己二酸环境下形成的氧化膜缺陷密度高3倍，这是导致氧化膜阳极溶解更快的原因。

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

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.