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Development of Microalloyed Steels Through Thin Slab Casting and Rolling (TSCR) Route

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Abstract

Thin slab casting and rolling (TSCR) route of hot rolled strip production is identified with certain hurdles in the processing of microalloyed steels of different levels of strength. First of all, precipitates formed during casting may undergo partial dissolution in tunnel furnace, leaving the valuable microalloying elements out of solution prior to commencement of hot rolling. Secondly, difficulty in complete recrystallization may lead to microstructural inhomogeneity in the form of mixed grain structures which is detrimental to strip performance. Such difficulties are not typically encountered in conventional casting and hot rolling of thick slabs. This paper summarizes the studies of various researchers about microalloying behaviour during production of strips through TSCR route. Along with this, the experiences of developing microalloyed steels of different strength levels through TSCR route of TATA Steel, Jamshedpur have been discussed.

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Acknowledgments

We would like to acknowledge the co-operation and support received from everyone associated with LD3 & TSCR shop of TATA Steel Ltd. Much thanks to TATA Steel Ltd for allowing us to pen down our experience in form of this paper.

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Authors and Affiliations

  1. Quality Assurance- Thin Slab Caster and Rolling, Product Technology- Flat Products, India, TATA Steel Ltd, Jamshedpur, 831001, India

    Diptak Bhattacharya

  2. Steelmaking and Casting Technology, Product Technology- Flat Products, India, TATA Steel Ltd, Jamshedpur, 831001, India

    Siddhartha Misra

Authors
  1. Diptak Bhattacharya
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  2. Siddhartha Misra
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Correspondence to Diptak Bhattacharya.

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Bhattacharya, D., Misra, S. Development of Microalloyed Steels Through Thin Slab Casting and Rolling (TSCR) Route. Trans Indian Inst Met 70, 1647–1659 (2017). https://doi.org/10.1007/s12666-016-0963-z

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  • DOI: https://doi.org/10.1007/s12666-016-0963-z

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