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The effect of ultrafast heating on cold-rolled low carbon steel : formation and decomposition of austenite

Felipe Manuel Castro Cerda (UGent) , Bernd Schulz, Spyros Papaefthymiou, Alfredo Artigas, Alberto Monsalve and Roumen Petrov (UGent)
(2016) METALS. 6(12).
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Abstract
The effect of heating rate on the formation and decomposition of austenite was investigated on cold-rolled low carbon steel. Experiments were performed at two heating rates, 150 degrees C/s and 1500 degrees C/s, respectively. The microstructures were characterized by means of scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD). Experimental evidence of nucleation of austenite in alpha/beta, as well as in alpha/alpha boundaries is analyzed from the thermodynamic point of view. The increase in the heating rates from 150 degrees C/s to 1500 degrees C/s has an impact on the morphology of austenite in the intercritical range. The effect of heating rate on the austenite formation mechanism is analyzed combining thermodynamic calculations and experimental data. The results provide indirect evidence of a transition in the mechanism of austenite formation, from carbon diffusion control to interface control mode. The resulting microstructure after the application of ultrafast heating rates is complex and consists of a mixture of ferrite with different morphologies, undissolved cementite, martensite, and retained austenite.
Keywords
ultrafast heating, massive, austenite, diffusion control, low-carbon steel, texture memory, BAINITIC MECHANISM, TRANSFORMATIONS, FERRITE, MICROSTRUCTURE, KINETICS

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MLA
Castro Cerda, Felipe Manuel, et al. “The Effect of Ultrafast Heating on Cold-Rolled Low Carbon Steel : Formation and Decomposition of Austenite.” METALS, vol. 6, no. 12, 2016, doi:10.3390/met6120321.
APA
Castro Cerda, F. M., Schulz, B., Papaefthymiou, S., Artigas, A., Monsalve, A., & Petrov, R. (2016). The effect of ultrafast heating on cold-rolled low carbon steel : formation and decomposition of austenite. METALS, 6(12). https://doi.org/10.3390/met6120321
Chicago author-date
Castro Cerda, Felipe Manuel, Bernd Schulz, Spyros Papaefthymiou, Alfredo Artigas, Alberto Monsalve, and Roumen Petrov. 2016. “The Effect of Ultrafast Heating on Cold-Rolled Low Carbon Steel : Formation and Decomposition of Austenite.” METALS 6 (12). https://doi.org/10.3390/met6120321.
Chicago author-date (all authors)
Castro Cerda, Felipe Manuel, Bernd Schulz, Spyros Papaefthymiou, Alfredo Artigas, Alberto Monsalve, and Roumen Petrov. 2016. “The Effect of Ultrafast Heating on Cold-Rolled Low Carbon Steel : Formation and Decomposition of Austenite.” METALS 6 (12). doi:10.3390/met6120321.
Vancouver
1.
Castro Cerda FM, Schulz B, Papaefthymiou S, Artigas A, Monsalve A, Petrov R. The effect of ultrafast heating on cold-rolled low carbon steel : formation and decomposition of austenite. METALS. 2016;6(12).
IEEE
[1]
F. M. Castro Cerda, B. Schulz, S. Papaefthymiou, A. Artigas, A. Monsalve, and R. Petrov, “The effect of ultrafast heating on cold-rolled low carbon steel : formation and decomposition of austenite,” METALS, vol. 6, no. 12, 2016.
@article{8511985,
  abstract     = {{The effect of heating rate on the formation and decomposition of austenite was investigated on cold-rolled low carbon steel. Experiments were performed at two heating rates, 150 degrees C/s and 1500 degrees C/s, respectively. The microstructures were characterized by means of scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD). Experimental evidence of nucleation of austenite in alpha/beta, as well as in alpha/alpha boundaries is analyzed from the thermodynamic point of view. The increase in the heating rates from 150 degrees C/s to 1500 degrees C/s has an impact on the morphology of austenite in the intercritical range. The effect of heating rate on the austenite formation mechanism is analyzed combining thermodynamic calculations and experimental data. The results provide indirect evidence of a transition in the mechanism of austenite formation, from carbon diffusion control to interface control mode. The resulting microstructure after the application of ultrafast heating rates is complex and consists of a mixture of ferrite with different morphologies, undissolved cementite, martensite, and retained austenite.}},
  articleno    = {{321}},
  author       = {{Castro Cerda, Felipe Manuel and Schulz, Bernd and Papaefthymiou, Spyros and Artigas, Alfredo and Monsalve, Alberto and Petrov, Roumen}},
  issn         = {{2075-4701}},
  journal      = {{METALS}},
  keywords     = {{ultrafast heating,massive,austenite,diffusion control,low-carbon steel,texture memory,BAINITIC MECHANISM,TRANSFORMATIONS,FERRITE,MICROSTRUCTURE,KINETICS}},
  language     = {{eng}},
  number       = {{12}},
  pages        = {{14}},
  title        = {{The effect of ultrafast heating on cold-rolled low carbon steel : formation and decomposition of austenite}},
  url          = {{http://doi.org/10.3390/met6120321}},
  volume       = {{6}},
  year         = {{2016}},
}
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