211Z.1铝合金微观组织及力学性能研究  

Microstructure and mechanical properties of 211Z.1 aluminum alloy

作　　者：张中可[1,3] 车云 门三泉 李祥 ZHANG Zhongke;CHE Yun;MEN Sanquan;LI Xiang(Guizhou Academy of Sciences,Guiyang 550001,China;Guizhou Huake Aluminum Materials Engineering Research Co.Ltd.,Guiyang 550014,China;Guizhou Aluminum Materials Engineering Research Center,Guiyang 550014,China)

机构地区：[1]贵州科学院,贵州贵阳550001 [2]贵州华科铝材料工程技术研究有限公司,贵州贵阳550014 [3]贵州省铝材料工程技术研究中心,贵州贵阳550014

出　　处：《贵州科学》2024年第4期93-96,共4页Guizhou Science

基　　金：贵州省科技支撑计划项目《高强度轻量化新能源汽车铝合金轴头研发》黔科合支撑〔2023〕一般320;贵州省科技计划项目《低温真空腔体用铝合金材料与坏件研究及推广应用》黔科合成果〔2023〕一般774;贵州华科铝材料工程技术研究有限公司项目《“三高”铝合金材料及制品研发》。

摘　　要：主要对211Z.1铝合金材料进行了金属型铸造加工及力学性能测试。实验结果显示,制备出的铸造试棒表面光滑,无铸造缺陷。经过T5热处理工艺之后,其平均抗拉强度达到了349.8 MPa,断后延伸率为21.3%,布氏硬度100,展现出优良的力学性能。通过光学显微镜(OM)、扫描电子显微镜(SEM)等技术手段,实施了对合金微观结构的深入分析,探索了微观组织对合金力学性能的影响,并揭示了其性能的内在联系。本研究结果为211Z.1铝合金在工程领域的应用以及未来材料设计方面提供了理论探索和实践指引。This study mainly carried out metal type casting processing and mechanical property testing on 211Z.1 aluminum alloy.The experimental results show that the prepared casting bars are smooth and free of casting defects.After the T5 heat treatment process,its average tensile strength reached 349.8 MPa,the elongation after breakage was 21.3%,and the Brinell hardness was 100,showing excellent mechanical properties.Through techniques such as optical microscope(OM)and scanning electron microscope(SEM),an in-depth analysis of the microstructure of the alloy was conducted,and the impact of microstructure on the mechanical properties of the alloy was explored.The results of this study can provide theoretical support and practical guidance for the application of 211Z.1 aluminum alloy in the engineering field and future material design.

关 键 词：211Z.1铝合金 微观组织 力学性能 

分 类 号：TG249.3[金属学及工艺—铸造]