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首页> 外文期刊>Materials Science and Engineering >Effect of T6 heat treatment on microstructure and mechanical property of 6101/A356 bimetal fabricated by squeeze casting
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Effect of T6 heat treatment on microstructure and mechanical property of 6101/A356 bimetal fabricated by squeeze casting

机译：T6热处理对挤压铸造6101 / A356双金属组织和力学性能的影响

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摘要

6101/A3S6 bimetal was fabricated by squeeze casting technique and subsequent T6 heat treatment (heating at 540 ± 3 ℃ for 5 h, quenching in cold water and ageing at 175 ℃ for 4 h). This research presents significant microstructure evolution and mechanical properties improvement of the metallurgical bonded 6101/A356 bimetal after T6 treatment. The transition zone between the A356 aluminum alloy and 6101 aluminum alloy is made up of fine equiaxed grain structure. After T6 heat treatment, the morphology of silicon particles in the A356 aluminum alloy changes from long, coarse plate-like to fine spherical, and Zn, Mg diffuse more homogeneously across the interface. The transition zone is broadened from ～110 μm to ～170 μm. Moreover, interfacial shear strength measured by push-out test is improved by about 34%, from 76.7 MPa to 102.7 MPa. In addition, micro-hardness for both the matrixes and transition region is increased simultaneously.
机译：通过挤压铸造技术和随后的T6热处理（在540±3℃下加热5 h，在冷水中淬火并在175℃下老化4 h）来制造6101 / A3S6双金属。这项研究显示了经T6处理的冶金结合6101 / A356双金属的显着组织演变和力学性能改善。 A356铝合金和6101铝合金之间的过渡区由细等轴晶粒结构组成。经过T6热处理后，A356铝合金中的硅颗粒形态从长而粗的板状变为细球形，并且Zn，Mg在界面上的扩散更加均匀。过渡区从〜110μm扩大到〜170μm。此外，通过推出试验测量的界面剪切强度从76.7 MPa提高到102.7 MPa，提高了约34％。另外，同时增加了基体和过渡区的显微硬度。

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  • 来源
    《Materials Science and Engineering》 |2017年第1期|208-215|共8页
  • 作者

    Guoping Liu; Qudong Wang; Teng Liu; Bing Ye; Haiyan Jiang; Wenjiang Ding;

  • 作者单位

    National Engineering Research Center of Light AUoy Net Forming and State Key Laboratory of Metal Matrix Composites, ShanghaiJiao Tong University, 200240 Shanghai, PR China;

    National Engineering Research Center of Light AUoy Net Forming and State Key Laboratory of Metal Matrix Composites, ShanghaiJiao Tong University, 200240 Shanghai, PR China;

    National Engineering Research Center of Light AUoy Net Forming and State Key Laboratory of Metal Matrix Composites, ShanghaiJiao Tong University, 200240 Shanghai, PR China;

    National Engineering Research Center of Light AUoy Net Forming and State Key Laboratory of Metal Matrix Composites, ShanghaiJiao Tong University, 200240 Shanghai, PR China;

    National Engineering Research Center of Light AUoy Net Forming and State Key Laboratory of Metal Matrix Composites, ShanghaiJiao Tong University, 200240 Shanghai, PR China;

    National Engineering Research Center of Light AUoy Net Forming and State Key Laboratory of Metal Matrix Composites, ShanghaiJiao Tong University, 200240 Shanghai, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Heat treatment; Squeeze casting; Bimetal; Interface; Mechanical property;

    机译：热处理;挤压铸造;双金属接口;机械性能;

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