Zhengzhi Zhao, Yonglin Kang, and Hao Yu, Microstructure and mechanical properties of automobile beam steels produced by EAF-CSP process, J. Univ. Sci. Technol. Beijing , 13(2006), No. 6, pp.508-511. https://dx.doi.org/10.1016/S1005-8850(06)60103-5
Cite this article as: Zhengzhi Zhao, Yonglin Kang, and Hao Yu, Microstructure and mechanical properties of automobile beam steels produced by EAF-CSP process, J. Univ. Sci. Technol. Beijing , 13(2006), No. 6, pp.508-511. https://dx.doi.org/10.1016/S1005-8850(06)60103-5
Materials

Microstructure and mechanical properties of automobile beam steels produced by EAF-CSP process

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This work was financially supported by the National Natural Science Foundation of China (No. 50334010).

  • The microstructure, mechanical properties, and misorientation of automobile beam steels produced by EAF-CSP process were studied using optical microscopy (OM) and electron back-scattered diffraction (EBSD). It is shown that the microstructure of strips is mainly polygonal ferrite, and the average grain size is about 5-8 μm. The electron back-scattered diffraction results show that grain boundaries in ferrite are basically high-angle grain boundaries without remarkable preferred orientation. Hot strips of automobile beam steels possess a good combination of strength and plasticity because of their fine microstructures and low quantity of impurities.
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