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Investigations of Solidification Structures of High Carbon Alloy Cast Steel Containing RE-V-Ti

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Abstract

The solidification microstructural characteristics of rare earth (RE) and vanadium and titanium-treated high carbon alloy cast steel, whose chemical compositions are 0.90 wt.% C, 3.0 wt.% Si, and 1.0 wt.% Mn, were investigated by means of optical microscopy (OM), scanning electron microscopy (SEM), electron probe microanalyzer (EPMA), and energy dispersive X-ray spectrometry (EDS). The alloys were prepared in an induction furnace. The results showed that compound additions of RE-V-Ti could obviously refine the solidification structures and decrease the diameter of grains. The average grain diameter of untreated high carbon alloy cast steel was 80 μm. The average grain diameter of high carbon alloy cast steel containing RE-V-Ti decreased to 40 μm. Finally, the reasons that RE-V-Ti refined the solidification structure were analyzed in detail.

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Authors and Affiliations

  1. State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an, 710049, Shaanxi Province, P.R. China

    Hanguang Fu & Jiandong Xing

  2. School of Electromechanical Engineering, Xi’an Polytechnic University, Xi’an, 710048, Shaanxi Province, P.R. China

    Yinhu Qu

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  1. Hanguang Fu
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  2. Yinhu Qu
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  3. Jiandong Xing
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Correspondence to Hanguang Fu.

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Fu, H., Qu, Y. & Xing, J. Investigations of Solidification Structures of High Carbon Alloy Cast Steel Containing RE-V-Ti. J. of Materi Eng and Perform 18, 333–338 (2009). https://doi.org/10.1007/s11665-008-9202-z

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  • DOI: https://doi.org/10.1007/s11665-008-9202-z

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