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ZL201铝合金副车架铸件的工艺仿真及数值模拟
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1.昆明理工大学 材料科学与工程学院,云南 昆明 650093;2.云南铝业有限公司,云南 昆明 650502

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国家自然科学基金项目(面上项目,重点项目,重大项目)


Simulation on ZL201 Aluminum Alloy Sub-frame for Foundry Technology
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1.Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;2.Yunnan Aluminum Co., Ltd, Kunming 650502, China

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    摘要:

    为了探讨铸造过程中ZL201铝合金副车架铸件微观组织的演变历程,基于有限元理论,对ZL201副车架铸件的铸造工艺和微观结构的变化过程进行了分析,采用XRD和OM表征了ZL201铝合金的相组成和金相组织。采用有限元法模拟了ZL201副车架的铸造工艺以及热力学方法计算了ZL201的相组成。结果表明,在C45浇铸模具温度为250 ℃,压力为0.4 MPa,铸造温度为750 ℃的条件下,ZL201副车架铸件填充率为98%,浇铸时间为10 s;经过热处理后,θ相(Al2Cu)溶解在铝基体中形成固溶体强化相,晶粒尺寸增大。

    Abstract:

    The evolution of microstructures of ZL201 sub-frame during casting was investigated. The processes of casting and cooling solidification were calculated by finite element and thermodynamic theory. The phase compositions were characterized by X-ray diffraction (XRD), and the microstructures were detected by optical microscope (OM) and scanning electron microscopy (SEM). The results show that the simulated results of casting and cooling process are consistent with the experiment. When the pressure is 0.4 MPa, the filling rate of ZL201 sub-frame is 98% and the filling time is 10 s. After heat treatment, the θ phases (Al2Cu) dissolve into the Al matrix, and form homogeneous solid solution, which increases the grain size.

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严继康,陈俊宇,邱哲生.ZL201铝合金副车架铸件的工艺仿真及数值模拟[J].稀有金属材料与工程,2021,50(12):4314~4318.[Yan Jikang, Chen Junyu, Qiu Zhesheng. Simulation on ZL201 Aluminum Alloy Sub-frame for Foundry Technology[J]. Rare Metal Materials and Engineering,2021,50(12):4314~4318.]
DOI:10.12442/j. issn.1002-185X.20200723

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历史
  • 收稿日期:2020-09-17
  • 最后修改日期:2020-12-17
  • 录用日期:2020-12-22
  • 在线发布日期: 2021-12-30
  • 出版日期: 2021-12-24