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Title

THERMO-MECHANICAL PROCESSING DURING HOT ROLLING OF STEELS AND THE DYNAMIC TRANSFORMATION OF FERRITE ABOVE AE3

Authorship

Siciliano, Fulvio; Rodrigues, Samuel F.; Jr., Clodualdo Aranas; Jonas, John J.

Siciliano, Fulvio

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Rodrigues, Samuel F.

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Jr., Clodualdo Aranas

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Jonas, John J.

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DOI

10.5151/9785-9785-32222

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Abstract

The application of thermo-mechanical control processing (TMCP) in hot rolling of steels has become a common routine since the last 60 years. The understanding of the physical metallurgy behind TMCP played a major role in the early developments. Physical and numerical simulation works are performed firstly to derive the fundamental metallurgical knowledge and secondly to conceive existing TMCP practices. In this paper, a summary TMCP techniques is presented. The occurrence of dynamic transformation of ferrite in the austenite region is shown by means of synchrotron light diffraction methods. This phase transformation mechanism is taken into consideration and its effects on TMCP are proposed in an exploratory way.

Keywords

THERMOMECHANICAL CONTROL PROCESSING, Hot rolling, Microalloyed Steel, DYNAMIC FERRITE TRANSFORMATION