摘要
以均匀化6082铝合金为锻前坯料,进行了6082铝合金机械法兰盘的近似等温锻造试验,并进行了显微组织、室温力学性能和耐磨损性能的测试与分析。结果表明,近似等温锻造显著改善了6082铝合金的微观结构,明显提升了其力学性能和耐磨损性能。与锻前坯料相比,近似等温锻造6082铝合金机械法兰盘的平均晶粒尺寸减小66μm,减幅达80%;α-Al(FeMn)Si析出相由粗大变为细小,不均匀分布变为均匀的弥散分布;抗拉强度增大138 MPa,增幅达66%;屈服强度增大142 MPa,增幅达90%;断后伸长率增大3.5%,增幅达24%。磨损20 min后的磨损体积减小26×10^(-3)mm^(3),减幅达55%。
For the homogenized 6082 aluminum alloy billet before forging,the approximate isothermal forging test of 6082 aluminum alloy mechanical flange was conducted,and the microstructure,mechanical properties at room temperature and wear resistance were tested and analyzed.The results indicate that the approximate isothermal forging significantly improves the microstructure of 6082 aluminum alloy,and significantly enhances its mechanical properties and wear resistance.Compared with the billet material before forging,the average grain size of 6082 aluminum alloy mechanical flange forged by approximate isothermal forging decreases by 66μm,a reduction amplitude of 80%.The precipitation phase ofα-Al(FeMn)Si changes from coarse to fine,and the uneven distribution changes to a uniform dis-persed distribution.The tensile strength increases by 138 MPa,with a growth amplitude of 66%.The yield strength increases by 142 MPa,with a growth amplitude of 90%.The elongation at break increases by 3.5%,with a growth amplitude of 24%.After 20 minutes of wear,the wear volume decreases by 26×10^(-3)mm^(3),a reduction amplitude of 55%.
作者
张智荣
马草原
李文军
陈茹
Zhang Zhirong;Ma Caoyuan;Li Wenjun;Chen Ru(Mechatronics Department,Linfen Vocational and Technical College,Linfen 041000,China;Institute of Electrical Engineering,China University of Mining and Technology,Xuzhou 221008,China;Basic Courses Department,Tianjin College,University of Science and Technology Beijing,Tianjin 301830,China)
出处
《锻压技术》
北大核心
2025年第6期27-32,共6页
Forging & Stamping Technology
基金
2023年临汾市重点研发项目(2335)
2024中华职业教育社课题(ZJS2024YB09)
2024山西教育科学“十四五”规划课题(GH-240476)
山西教学改革与实践项目(202403021)
教育部职业院校教指委课题(ZJYB098)。
关键词
近似等温锻造
6082铝合金
机械法兰盘
力学性能
耐磨损性能
显微组织
approximate isothermal forging
6082 aluminum alloy
mechanical flange
mechanical property
wear resistance property
microstructure
