杨巧燕,马坤,刘亚,涂浩,苏旭平,王建华

• 1:江苏省材料表面科学与技术重点实验室常州大学
• 2:江苏省光伏科学与工程协同创新中心常州大学

摘要(Abstract)：

采用扫描电镜、万能电子试验机和HVS-5Z/LCD维氏硬度计分析测试了Al-1B变质处理前后Zn-6Al-3Mg合金的凝固组织与力学性能。研究表明:变质剂加入量和变质温度对Zn-6Al-3Mg合金的凝固组织中Al-fcc相、Mg Zn2相和Zn-hcp相以及二元Zn/Al和三元Zn/Al/Mg Zn2共晶体的形态和体积分数有明显影响。当Al-1B加入量为0.3 mass%时,Zn-6Al-3Mg合金的抗拉强度、硬度和伸长率都达到最大值。当变质剂加入量相同时,随着变质温度的升高,Zn-6Al-3Mg合金的抗拉强度和伸长率提高;在450℃变质处理时,Zn-6Al-3Mg合金的硬度最高,550℃变质处理后该合金的硬度最低。

关键词(KeyWords)： Zn-6Al-3Mg合金;显微组织;力学性能;变质温度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51271041,51271040);; 常州市工业支撑项目(CE20130085)

作者(Author): 杨巧燕,马坤,刘亚,涂浩,苏旭平,王建华

DOI: 10.13289/j.issn.1009-6264.2016.03.024

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