热处理对Al-Zn-Sn-Ga-Mg合金组织和电化学性能的影响Effect of heat treatment on microstructure and electrochemical properties of Al-Zn-Sn-Ga-Mg alloy sacrificial anode
贺俊光,文九巴,李旭东,郝庆国
摘要(Abstract):
通过比较铸态、退火和固溶态Al-Zn-Sn-Ga-Mg合金的组织和电化学性能,研究了热处理对该阳极微观组织和电化学性能的影响。结果显示:均匀化处理能减少阳极晶界偏析,抑制析氢腐蚀和提高阳极电流效率,且固溶处理的效果明显优于退火处理。经固溶处理后阳极的电流效率达93.4%,工作电位负而稳定,且腐蚀形貌均匀,表明该合金具有较好的综合电化学性能。
关键词(KeyWords): 热处理;牺牲阳极;组织;电化学性能
基金项目(Foundation): 河南省科技创新杰出人才计划(094200510019);; 河南省自然科学基金项目(092300410132)
作者(Author): 贺俊光,文九巴,李旭东,郝庆国
DOI: 10.13289/j.issn.1009-6264.2011.07.022
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