马瑞娜,范永哲,杜安,张平平

• 1:河北工业大学材料科学与工程学院
• 2:天津市材料层状复合与界面控制技术重点实验室

摘要(Abstract)：

研究了不同冷速下Zn+6%Al+3%Mg合金原始镀液凝固组织和形貌的变化,并对不同冷速下合金的耐腐蚀性能进行了分析。结果表明,不同冷速条件下,合金中出现先析出相Al、Al和Zn、Al/Mg Zn2共晶组织、Zn/Al/Mg Zn2三元共晶组织,但炉冷,水冷下还生成了Zn/Al/Mg Zn11三元共晶。随冷却速度增加,晶粒尺寸愈加细小。空冷下合金耐腐蚀性能相对较好,炉冷相对较差,这与其晶粒度和Mg2Zn11相有关。

关键词(KeyWords)： Zn-Al-Mg合金;冷却速度;组织形态;腐蚀

Abstract:

Keywords:

基金项目(Foundation): 河北省教育厅项目(QN20131036);; 河北省重大技术创新项目(12216701Z)

作者(Author): 马瑞娜,范永哲,杜安,张平平

DOI: 10.13289/j.issn.1009-6264.2015.04.009

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