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) C7-1087 - C7-1091
DOI http://dx.doi.org/10.1051/jp4:19937170
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) C7-1087-C7-1091

DOI: 10.1051/jp4:19937170

Aspects of the transitory deformations correlated with the cracking at heat in welding

V. MICLOSI, Gh. SOLOMON and I. TONOIU

Polytechnic Institute of Bucharest, 313, Sp. Independentei, Fac. I.M.S.T., Cat. T.M.S., 77206 Bucarest, Romania


Abstract
The cracking at heat is one of the main problems which appear at the austenitic steel welding, especially for the austenitics steel without delta ferite. The susceptibility regarding the cracking at heat can be studied analiticaly by the correlation between two factors : the factor stress constitued by the tension and the deformations which appear in the welding process (FS) and the resistance factor constitued by the capacity of the material to take the stress and the deformations appeared (FR). As a result of the interaction of the both factors is the posibility of cracking or not cracking into a concret case, named generaly the susceptibility at the heat cracking. The tendency at the cracking at heat can be apreciate with a quantitativ estimation, named critical speed of cracking (Vcf). The practical determination of these speed suposed for an concret exemple, the knowledge of real plastic deformation at the weld, which are determinated in this paper.



© EDP Sciences 1993