摘要
Al-Mg-Si系铝合金具有高强度、耐腐蚀、成型性好等综合性能,广泛应用于汽车轻量化车身。在总结新型高性能汽车车身用6009、6010、6016、6111、6022合金成分特点基础上,采用Thermo-Calc软件进行Al-Mg-Si系合金相图计算;从热力学的角度探讨了合金成分、平衡相与强度的关系。以6010铝合金成分为基础,讨论了Mg/Si比值、Mg、Si、Cu元素对平衡相的影响规律,为新型高性能汽车车身用Al-Mg-Si铝合金成分设计提供热力学依据。
Al-Mg-Si series alloys have been widely used in automobile body due to their high strength,corrosion resistance and good formation.The development of automobile body Al-Mg-Si aluminum alloy has attracted increasing attention.In this paper,the composition characteristics of 6009,6010,6016,6111 and 6022 aluminum alloys was systematically analyzed.CALPHAD(calculation of phase diagram)was carried by Thermo-Calc software for mole fraction of equilibrium phase.The interrelation of composition,equilibrium phase and strength is investigated from perspective of thermodynamic calculations.Also the influence of the Mg/Si,Mg,Si and Cu elements on the equilibrium phases was discussed on the basis of the composition of 6010 aluminum alloy,providing the thermodynamic basis for design of automobile body Al-Mg-Si aluminum alloy.
作者
刘方军
陈超广
王阳
聂宝华
罗铭强
聂德键
LIU Fang-jun;CHEN Chao-guang;WANG Yang;NIE Bao-hua;LUO Ming-qiang;NIE De-jian(College of Automation,Foshan University of Science and Technology,Foshan Guangdong 528000,China;GKN Power Machinery(Liuzhou)Co.,Ltd.,Liuzhou Guangxi 545000,China;School of Materials Science and Energy Engineering,Foshan University of Science and Technology,Foshan Guangdong 528000,China;Guangdong Xingfa Aluminum Co.,Ltd.,Foshan Guangdong 528100,China)
出处
《装备制造技术》
2020年第5期13-16,共4页
Equipment Manufacturing Technology
基金
广东省公益研究与能力建设科技项目(2017A010103029)
广东省教育厅特色创新项目(2018KTSCX240)
广东省佛山市科技计划项目(2017AB003941,2018AB003661)
江西省重点研发计划项目(20201BBE51009)。
