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Cu对Sn-9Zn无铅钎料电化学腐蚀性能的影响

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Indexed by:期刊论文

Date of Publication:2007-08-15

Journal:中国有色金属学报

Included Journals:Scopus、EI、PKU、ISTIC、CSCD

Volume:17

Issue:8

Page Number:1302-1306

ISSN No.:1004-0609

Key Words:无铅钎料;Sn-Zn-Cu钎料;NaCl溶液;电化学腐蚀

Abstract:对Sn-9Zn-xCu钎料在3.5%NaCl溶液中的电化学腐蚀行为进行研究,以揭示添加Cu对Sn-9Zn钎料耐蚀性的影响.结果表明:添加Cu元素使Sn-Zn钎料的腐蚀电位有所增加,即添加Cu元素可以改善Sn-Zn钎料的耐腐蚀性能;XRD检测发现Sn-9Zn-xCu钎料的腐蚀产物中存在Zn5(OH)8C12·H2O;随着Cu含量的增加,Zn5(OH)8C12·H2O的量逐渐减少,出现Cu的腐蚀产物,腐蚀表面趋于均匀平整,选择性腐蚀减弱,腐蚀产物的黏附性较好.

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