| Sn-9Zn共晶型无铅焊料的大气腐蚀行为 |
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| 引用本文： | 冼俊扬. Sn-9Zn共晶型无铅焊料的大气腐蚀行为[J]. 腐蚀科学与防护技术, 2008, 20(5): 347-349 |
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| 作者姓名： | 冼俊扬 |
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| 作者单位： | 合肥工业大学,化学工程学院应用化学系,合肥,230009 |
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| 摘 要： | 采用户外大气暴露和人工模拟溶液的方法.研究了Sn-9Zn合金在大气环境和腐蚀性溶液中的腐蚀行为.结果表明，在户外大气暴露12天，合金表面已发生明显的腐蚀；腐蚀产物的微观形貌主要有刺球状和针状两种；除Zn与Sn以外，腐蚀产物中还含有大量的O，分析认为可能是一种Sn-Zn的氢氧化物；在实验条件范围内，合金在腐蚀溶液中腐蚀速度相对较快，在15天内平均腐蚀质量损失达到0.20 mg/dm2～0.25 mg/dm2,表面腐蚀速度与腐蚀溶液中盐的浓度关系不大.
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| 关 键 词： | 无铅焊料 Sn合金 锌 大气腐蚀 |
| 收稿时间： | 2007-12-30 |
| 修稿时间： | 2008-03-14 |
ATMOSPHERIC CORROSION OF Sn-9Zn EUTECTIC Pb-FREE SOLDER |
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| XIAN Jun-yang. ATMOSPHERIC CORROSION OF Sn-9Zn EUTECTIC Pb-FREE SOLDER[J]. Corrosion Science and Protection Technology, 2008, 20(5): 347-349 |
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| Authors: | XIAN Jun-yang |
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| Affiliation: | Department of Applied Chemistry; Hefei University of Technology;Hefei 230009 |
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| Abstract: | Sn-9Zn alloy is a low cost eutectic Pb-free solder.Since Zn exists in the alloy,the corrosion resistance is poor.Present work was focused on the corrosion behavior of Sn-9Zn in both outdoor atmosphere and an artificial simulated solution.The corrosion product was observed by SEM and analyzed by EDAX.The results showed that in the case of atmosphere corrosion,the surface of the alloy suffered from obvious corrosion after expoure for 12 days only.The morphology of the corrosion product mainly presents as thor... |
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| Keywords: | Pb-free solder tin alloy Zn atmosphere corrosion |
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