文九巴,高军伟,贺俊光,祝要民

• 1:河南科技大学材料科学与工程学院
• 2:河南省有色金属共性技术协同创新中心

摘要(Abstract)：

对不同Zn含量的Al-Ga-Mg-Sn-xZn系列阳极合金的组织及腐蚀形貌进行观察和分析,并测试了该系列合金在4 mol/L NaOH溶液中的析氢速率、开路电位、极化曲线等腐蚀电化学性能指标,研究了Zn对Al-Ga-Mg-Sn合金组织和腐蚀电化学性能的影响。结果表明:Al-0.1Ga-1Mg-0.1Sn-xZn合金中的析出相主要为富Sn相,合金元素Zn主要固溶于Al基体中,添加0.5%和1%(mass%)的Zn后,合金的耐蚀性提高,开路电位和恒电流放电工作电位均有所负移,Al-0.1Ga-1Mg-0.1Sn-1Zn合金的综合腐蚀电化学性能较好,在4 mol/L NaOH溶液中,稳定开路电位约-1.72 V(vs.Hg/HgO),析氢速率为0.202 mL·cm-2·min-1,100 mA·cm-2放电时工作电位达-1.41 V(vs.Hg/HgO),腐蚀形貌均匀。

关键词(KeyWords)： Al-Ga-Mg-Sn-Zn;阳极合金;显微组织;腐蚀;电化学性能

Abstract:

Keywords:

基金项目(Foundation): 洛阳市科技攻关项目(1301001A);; 河南省“新型有色金属材料”高校科技创新团队支持计划(2012IRTSTHN008)

作者(Author): 文九巴,高军伟,贺俊光,祝要民

DOI: 10.13289/j.issn.1009-6264.2014.09.026

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