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Investigation of Austenitization in Low Carbon Microalloyed Steel During Continuous Heating

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Abstract

Dilatation associated with the formation of austenite from ferrite–pearlite was calculated from equilibrium phase fraction and composition. Linear thermal expansion coefficient of ferrite required for the calculation was determined by iteration of dilatation data. A good match was obtained between the calculated and experimental dilatation curves. The calculated dilatation data were used to identify the stages of austenite formation: pearlite dissolution followed by ferrite to austenite transformation which is gradual at first before becoming rapid.

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The authors acknowledge partial financial support from Ministry of Steel and Department of Science and Technology, Government of India.

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Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India

    Kavitha Gunabalapandian, Ravi Ranjan & Shiv Brat Singh

  2. Research and Development (R&D) Division, Tata Steel Ltd., Jamshedpur, 831 001, India

    Santigopal Samanta

Authors
  1. Kavitha Gunabalapandian
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  2. Santigopal Samanta
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  3. Ravi Ranjan
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  4. Shiv Brat Singh
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Correspondence to Ravi Ranjan.

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Manuscript submitted October 26, 2016.

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Gunabalapandian, K., Samanta, S., Ranjan, R. et al. Investigation of Austenitization in Low Carbon Microalloyed Steel During Continuous Heating. Metall Mater Trans A 48, 2099–2104 (2017). https://doi.org/10.1007/s11661-017-4014-0

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  • DOI: https://doi.org/10.1007/s11661-017-4014-0

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