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The first part of this study deals with the precipitation of titanium and niobium compounds in interstitial-free steels containing titanium (IF-Ti) and steels containing niobium and titanium (IF-Nb+Ti), and in particular, with the evolution of these precipitates as a function of steel composition and thermomechanical processing. Thermodynamic modelling of the precipitation was performed, and the solubility products from the literature were re-evaluated in order to take into account the experimental results. After having studied the evolution of the state of precipitation, we addressed the subject of the specific effects of alloying elements, either in solid solution and/or in precipitate form, on the development of the recrystallization texture, in the case of IF-Ti steels only. The final objective of this research is to be able to define the chemical compositions and hot rolling schedules which allow for the control and optimization of the precipitation with regard to the final properties of the cold-rolled and continuously annealed final product.

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Authors: MOLIEXE F, IRSID, Paris-la-Défense (FR);COPREAUX J, IRSID, Paris-la-Défense (FR);GAYE H, IRSID, Paris-la-Défense (FR);HENRY J, IRSID, Paris-la-Défense (FR);LANTERI S, IRSID, Paris-la-Défense (FR)
Bibliographic Reference: EUR 17890 FR (1998) 139pp., ECU 23.00
Availability: Available from the (2)
ISBN: ISBN 92-828-3229-5
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