张宇轩,王红星,白允强,顾沈逸,王文鑫,徐道翔,史艳慈,周涛,皮峰瑜

• 1:南京工程学院材料科学与工程学院
• 2:江苏省先进结构材料与应用技术重点实验室

摘要(Abstract)：

采用金属型铸造法制备了Zn-1.5Cu-1.2Mg-xCa(x=0、0.1、0.25和0.5, mass%)锌合金，研究了Ca元素添加量对其微观组织、力学性能和耐腐蚀性能的影响。结果表明：未添加Ca时，合金的初生相为η-Zn,强化相为Mg_2Zn_(11)。随着Ca添加量的增加，合金组织中的Mg_2Zn_(11)相和Ca的化合物增加，粗大的枝晶细化，并出现了新相。随着Ca添加量的增加，合金的显微硬度增加，而拉伸强度呈先下降后升高的趋势。添加0.5 mass%Ca时，合金的硬度达到最大，为203 HV,未添加Ca时，合金的拉伸强度达到最大，为199 MPa。当Ca添加量达0.1 mass%时，合金的耐腐蚀性能最佳，腐蚀速率为92.1μm/y。

关键词(KeyWords)： 锌合金;微观组织;力学性能;耐腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 江苏省大学生创新创业训练项目(202311276153H);; 江苏高校优秀科技创新团队

作者(Author): 张宇轩,王红星,白允强,顾沈逸,王文鑫,徐道翔,史艳慈,周涛,皮峰瑜

DOI: 10.13289/j.issn.1009-6264.2023-0588

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