贺俊光,文九巴,孙乐民,高军伟,李登辉

• 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)：

通过比较时效不同时间的Al-5Zn-0.03In-1Mg-0.05Ti-0.1Si阳极合金的析出相、开路电位、电流效率、腐蚀形貌及电化学阻抗谱等,研究了时效时间对该阳极微观组织和电化学性能的影响。结果表明:该合金中的主要析出相为Mg Zn2相,随时效时间的增加析出相迅速长大且密度逐渐降低。时效30 min试样的电化学性能最好,开路电位约-1.0793 V(SCE),电流效率为94.5%,试样表面腐蚀坑深度很浅、腐蚀形貌非常均匀。随着时效时间延长,合金的开路电位逐渐负移,但电流效率却逐渐降低且腐蚀形貌逐渐恶化。析出相对铝基牺牲阳极的电化学性能影响较大,长时间时效不利于改善铝合金阳极的综合电化学性能。

关键词(KeyWords)： 时效;铝合金;牺牲阳极;组织;电化学性能

Abstract:

Keywords:

基金项目(Foundation): 河南省重点攻关项目(132102210119);; 河南省教育厅重点项目(14A430001);; 洛阳市科技攻关(1301001A)

作者(Author): 贺俊光,文九巴,孙乐民,高军伟,李登辉

DOI: 10.13289/j.issn.1009-6264.2015.05.017

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