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In the Central Laboratory of Microscopy of the Autonomous University of Mexico (UNAM), measurements were made to characterize processed samples of waste from the SIDERPERÚ plant (Chimbote, Peru) to provide information on methods of recovering obsolete steel. The 7800F Scanning Electron Microscope (SEM) was used under the direction of Dr. D. Acosta on samples from the electric furnace and continuous casting from SIDERPERU, Chimbote, Peru, which were processed to reach ASTM A36 and ASTM A615 standards. The superficial images obtained in the SEM equipment show that a better consolidation has been obtained in the extrusion of ASTM A615 than with the process followed for the sample called ASTM A36. In addition, the energy dispersive X-ray spectrometer confirms the presence of Fe, O, Mn and Si and impurities in a small proportion. Thanks to this study, we verified the composition of the samples, affirming that the elements are distributed homogeneously and comply with the required composition standard.

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SEM Characterization of ASTM A36 and A615 Powder Metallurgical Steel Processed from Waste from a Steel Plant

  • 会议论文

  • 发表日期：

    2025年

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  • Silvia Marisel Espinoza Suarez,
  • D. Acosta,
  • A. Bustamante Domínguez,
  • Xiaoli Zhao,
  • Youyung Zhang,
  • Deliang Zhang,
  • L. De Los Santos Valladares,
  • Jorge Mamani Calcina,
  • César Vera Vásquez

摘要

In the Central Laboratory of Microscopy of the Autonomous University of Mexico (UNAM), measurements were made to characterize processed samples of waste from the SIDERPERÚ plant (Chimbote, Peru) to provide information on methods of recovering obsolete steel. The 7800F Scanning Electron Microscope (SEM) was used under the direction of Dr. D. Acosta on samples from the electric furnace and continuous casting from SIDERPERU, Chimbote, Peru, which were processed to reach ASTM A36 and ASTM A615 standards. The superficial images obtained in the SEM equipment show that a better consolidation has been obtained in the extrusion of ASTM A615 than with the process followed for the sample called ASTM A36. In addition, the energy dispersive X-ray spectrometer confirms the presence of Fe, O, Mn and Si and impurities in a small proportion. Thanks to this study, we verified the composition of the samples, affirming that the elements are distributed homogeneously and comply with the required composition standard.