Community Research and Development Information Service - CORDIS

Abstract

This work comprised the development and extension of phase transformation models and associated experimental validation on medium carbon/low alloy and high carbon steels. The modelling aspects cover extension of the physically based transformation model, alternative modes of operation of the model, a more empirically based transformation model specific to eutectoid steels but embedded in a thermal model, and the development of artificial neural network models for the transformation behaviour of medium carbon/low alloy steels. Experimental work involved isothermal, continuous cooling, and interrupt-quench studies of phase evolution. This has encompassed the effects of grain size in low carbon, low alloy and high carbon steels, and of retained strain in the low carbon steels, and the effects of micro-additions, boron and vanadium. A database of past results on microstructure and properties has been extended to cover the alloy range addressed by this project.

Finally, the overall accuracy of the predictions remains difficult to gauge in view of the variability of experimental data observed in this work and among other literature sources. This is a cause for concern regarding the goal of developing consistent metallurgical models for use by different research institutes and steel companies. There is definitely value in improving the metallurgical modelling capability, but the need for reliable, agreed experimental procedures and data must not be overlooked.

Additional information

Authors: HOWE A, Corus UK Ltd, Rotherham (GB);PARKER S V, Corus UK Ltd, Rotherham (GB);WHITTAKER N A, Corus UK Ltd, Rotherham (GB);DI NUNZIO P E, CSM, Rome (IT);LÓPEZ B, CEIT, San Sebastián (ES);COTRINA E, CEIT, San Sebastián (ES);ABAD R, CEIT, San Sebastián (ES);VAN STRATEN R, TU Delft, Delft (NL);VAN DER WOLK P J, TU Delft, Delft (NL);LOPEZ B, CEIT, San Sebastian (ES)
Bibliographic Reference: EUR 20216 EN (2002), pp.258. Euro: 39.00
Availability: EUR-OP reference: KI-NA-20216-EN-S Available from EUR-OP sales agents. URL: http://eur-op.eu
ISBN: ISBN: 92-894-3365-5
Record Number: 200214743 / Last updated on: 2002-05-21
Category: PUBLICATION
Original language: en
Available languages: en