贺俊光,程振飞,李旭阳,郜清磊,文九巴

• 1:河南科技大学材料科学与工程学院
• 2:有色金属新材料与先进加工技术省部共建协同创新中心

摘要(Abstract)：

通过扫描电镜(SEM)、X射线衍射仪(XRD)、电子背散射衍射(EBSD)、拉伸实验和浸泡测试等研究了固溶和挤压对Mg-2.0Zn-1.0Y-0.5Zr(mass%)合金组织和性能的影响。结果表明：固溶处理可以明显降低合金中的第二相数量，提高合金的屈服强度、极限抗拉强度、伸长率和耐蚀性；热挤压可明显细化合金晶粒，大幅提高合金的屈服强度和极限抗拉强度，但却降低其伸长率和耐蚀性。440℃固溶10 h的合金有较低的腐蚀速率，为(0.304±0.021) mm/y;进一步460℃挤压后合金的力学性能最好，其屈服强度、极限抗拉强度和伸长率分别为(293.9±4.8) MPa、(317.1±5.5) MPa和(16.7±1.5)%。

关键词(KeyWords)： Mg-2.0Zn-1.0Y-0.5Zr合金;固溶;挤压;组织;性能

Abstract:

Keywords:

基金项目(Foundation): 河南省自然科学基金项目(242300420018);; 河南省高等学校重点科研项目(20A430010)

作者(Author): 贺俊光,程振飞,李旭阳,郜清磊,文九巴

DOI: 10.13289/j.issn.1009-6264.2024-0059

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