喷射成形2618铝合金组织及性能的研究  

Research on the structure and properties of spray-formed 2618 aluminum alloy

作　　者：高丽娜 肖建 贾咏馨 聂赛男 苏睿明[1] GAO Lina;XIAO Jian;JIA Yongxin;NIE Sainan;SU Ruiming(School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110807,Liaoning China;Guizhou Yonghong Aviation Machinery Co.,Ltd.,Guiyang 550009,Guizhou China)

机构地区：[1]沈阳工业大学材料科学与工程学院,辽宁沈阳110807 [2]贵州永红航空机械有限责任公司,贵州贵阳550009

出　　处：《中国铸造装备与技术》2022年第1期80-83,共4页China Foundry Machinery & Technology

基　　金：辽宁省教育厅科学研究项目(LJGD2020010);大学生创新创业训练计划项目(X202010142020)。

摘　　要：采用喷射成形和传统铸造方法分别制备2618(Al-Cu-Mg-Fe-Ni)铝合金,并通过扫描电镜、能谱分析仪、硬度测试和拉伸测试等设备和手段对时效后的合金微观组织及力学性能进行对比分析。结果表明喷射成形工艺对合金常温和高温拉伸性能有明显提升。喷射成形2618铝合金中Al9FeNi耐热相形态较为圆整,Al2CuMg强化相细小、弥散,故合金性能提升明显。The 2618(Al-Cu-Mg-Fe-Ni)aluminum alloy is prepared by spray forming and traditional casting methods.The alloy microstructure and mechanical properties after the aging have been compared and analyzed by scanning electron microscope,energy spectrum analyzer,hardness test,tensile test and other equipment and methods.The results show that the spray forming process can significantly improve the tensile properties of the alloy at room temperature and high temperature.In spray-formed 2618 aluminum alloy,the Al9FeNi heat-resistant phase shape is relatively round,while the Al2CuMg strengthening phase is small and dispersed,so that the alloy performance has been improved significantly.

关 键 词：2618铝合金 喷射成形 时效处理 微观组织 力学性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程]