Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-83 - C7-88
DOI http://dx.doi.org/10.1051/jp4:1993709
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-83-C7-88

DOI: 10.1051/jp4:1993709

Effects of accelerated cooling after rolling and of additions of Ni and Nb on the microstructure and mechanical behaviour of 0.1 wt% C steels

R. TAILLARD1, P. DESHAYES1, 2, E. AMORIS2 and C. PERDRIX2

1  Laboratoire de Métallurgie Physique, URA CNRS 234, Université de Lille I, 59655 Villeneuve d'Ascq, France
2  Centre de Recherches et Développement Métallurgiques, SOLLAC, BP. 2508, 59831 Dunkerque, France


Abstract
The study of the microstructure is necessary so as to investigate the effects of the parameters of interrupted accelerated cooling (IAC) on the mechanical behaviour of 0.1 wt % C, Ti or Nb + Ti microalloyed steels. The paper deals with larger variations of the cooling rate and of the finish cooling temperature than are usual in industrial practice. The work establishes : 1) the favourable effects of the highest cooling rate and for the Nb-free materials of a lower than usual finish cooling temperature, 2) the unsuitable character of a 0.4 wt% addition of Ni in, IAC samples and 3) the chief advantage of a 0.0015 wt% microaddition of Nb. The metallurgical origins of these results are detailed.



© EDP Sciences 1993